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-rw-r--r--src/mesh/assimp-master/port/dAssimp/assimp/animation.d240
-rw-r--r--src/mesh/assimp-master/port/dAssimp/assimp/api.d686
-rw-r--r--src/mesh/assimp-master/port/dAssimp/assimp/assimp.d63
-rw-r--r--src/mesh/assimp-master/port/dAssimp/assimp/camera.d182
-rw-r--r--src/mesh/assimp-master/port/dAssimp/assimp/config.d705
-rw-r--r--src/mesh/assimp-master/port/dAssimp/assimp/fileIO.d140
-rw-r--r--src/mesh/assimp-master/port/dAssimp/assimp/light.d215
-rw-r--r--src/mesh/assimp-master/port/dAssimp/assimp/loader.d193
-rw-r--r--src/mesh/assimp-master/port/dAssimp/assimp/material.d641
-rw-r--r--src/mesh/assimp-master/port/dAssimp/assimp/math.d155
-rw-r--r--src/mesh/assimp-master/port/dAssimp/assimp/mesh.d465
-rw-r--r--src/mesh/assimp-master/port/dAssimp/assimp/postprocess.d597
-rw-r--r--src/mesh/assimp-master/port/dAssimp/assimp/scene.d306
-rw-r--r--src/mesh/assimp-master/port/dAssimp/assimp/texture.d122
-rw-r--r--src/mesh/assimp-master/port/dAssimp/assimp/types.d249
-rw-r--r--src/mesh/assimp-master/port/dAssimp/assimp/versionInfo.d72
16 files changed, 5031 insertions, 0 deletions
diff --git a/src/mesh/assimp-master/port/dAssimp/assimp/animation.d b/src/mesh/assimp-master/port/dAssimp/assimp/animation.d
new file mode 100644
index 0000000..9a36940
--- /dev/null
+++ b/src/mesh/assimp-master/port/dAssimp/assimp/animation.d
@@ -0,0 +1,240 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (ASSIMP)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2020, ASSIMP Development Team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+ * Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+ * Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+ * Neither the name of the ASSIMP team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the ASSIMP Development Team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/**
+ * The data structures which are used to store the imported animation data.
+ */
+module assimp.animation;
+
+import assimp.math;
+import assimp.types;
+
+extern ( C ) {
+ /**
+ * A time-value pair specifying a certain 3D vector for the given time.
+ */
+ struct aiVectorKey {
+ /**
+ * The time of this key.
+ */
+ double mTime;
+
+ /**
+ * The value of this key.
+ */
+ aiVector3D mValue;
+ }
+
+ /**
+ * A time-value pair specifying a rotation for the given time. For joint
+ * animations, the rotation is usually expressed using a quaternion.
+ */
+ struct aiQuatKey {
+ /**
+ * The time of this key.
+ */
+ double mTime;
+
+ /**
+ * The value of this key.
+ */
+ aiQuaternion mValue;
+ }
+
+ /**
+ * Defines how an animation channel behaves outside the defined time
+ * range. This corresponds to <code>aiNodeAnim.mPreState</code> and
+ * <code>aiNodeAnim.mPostState</code>.
+ */
+ enum aiAnimBehaviour : uint {
+ /**
+ * The value from the default node transformation is used.
+ */
+ DEFAULT = 0x0,
+
+ /**
+ * The nearest key value is used without interpolation.
+ */
+ CONSTANT = 0x1,
+
+ /**
+ * The value of the nearest two keys is linearly extrapolated for the
+ * current time value.
+ */
+ LINEAR = 0x2,
+
+ /**
+ * The animation is repeated.
+ *
+ * If the animation key go from n to m and the current time is t, use the
+ * value at (t-n) % (|m-n|).
+ */
+ REPEAT = 0x3
+ }
+
+ /**
+ * Describes the animation of a single node.
+ *
+ * The name specifies the bone/node which is affected by this animation
+ * channel. The keyframes are given in three separate series of values, one
+ * each for position, rotation and scaling. The transformation matrix
+ * computed from these values replaces the node's original transformation
+ * matrix at a specific time. This means all keys are absolute and not
+ * relative to the bone default pose.
+ *
+ * The order in which the transformations are applied is –
+ * as usual – scaling, rotation, translation.
+ *
+ * Note: All keys are returned in their correct, chronological order.
+ * Duplicate keys don't pass the validation step. Most likely there will
+ * be no negative time values, but they are not forbidden (so
+ * implementations need to cope with them!).
+ */
+ struct aiNodeAnim {
+ /**
+ * The name of the node affected by this animation. The node must exist
+ * and it must be unique.
+ */
+ aiString mNodeName;
+
+ /**
+ * The number of position keys.
+ */
+ uint mNumPositionKeys;
+
+ /**
+ * The position keys of this animation channel. Positions are specified
+ * as 3D vectors. The array is <code>mNumPositionKeys</code> in size.
+ *
+ * If there are position keys, there will also be at least one scaling
+ * and one rotation key.
+ */
+ aiVectorKey* mPositionKeys;
+
+ /**
+ * The number of rotation keys.
+ */
+ uint mNumRotationKeys;
+
+ /**
+ * The rotation keys of this animation channel. Rotations are given as
+ * quaternions. The array is <code>mNumRotationKeys</code> in size.
+ *
+ * If there are rotation keys, there will also be at least one scaling
+ * and one position key.
+ */
+ aiQuatKey* mRotationKeys;
+
+
+ /**
+ * The number of scaling keys.
+ */
+ uint mNumScalingKeys;
+
+ /**
+ * The scaling keys of this animation channel. Scalings are specified as
+ * 3D vectors. The array is <code>mNumScalingKeys</code> in size.
+ *
+ * If there are scaling keys, there will also be at least one position
+ * and one rotation key.
+ */
+ aiVectorKey* mScalingKeys;
+
+
+ /**
+ * Defines how the animation behaves before the first key is encountered.
+ *
+ * The default value is <code>aiAnimBehaviour.DEFAULT</code> (the original
+ * transformation matrix of the affected node is used).
+ */
+ aiAnimBehaviour mPreState;
+
+ /**
+ * Defines how the animation behaves after the last key was processed.
+ *
+ * The default value is <code>aiAnimBehaviour.DEFAULT</code> (the original
+ * transformation matrix of the affected node is used).
+ */
+ aiAnimBehaviour mPostState;
+ }
+
+ /**
+ * An animation consists of keyframe data for a number of nodes.
+ *
+ * For each node affected by the animation, a separate series of data is
+ * given.
+ */
+ struct aiAnimation {
+ /**
+ * The name of the animation.
+ *
+ * If the modeling package this data was
+ * exported from does support only a single animation channel, this
+ * name is usually empty (length is zero).
+ */
+ aiString mName;
+
+ /**
+ * Duration of the animation in ticks.
+ */
+ double mDuration;
+
+ /**
+ * Ticks per second. 0 if not specified in the imported file.
+ */
+ double mTicksPerSecond;
+
+ /**
+ * The number of bone animation channels.
+ *
+ * Each channel affects a single node.
+ */
+ uint mNumChannels;
+
+ /**
+ * The node animation channels. The array is <code>mNumChannels</code>
+ * in size.
+ *
+ * Each channel affects a single node.
+ */
+ aiNodeAnim** mChannels;
+ }
+} \ No newline at end of file
diff --git a/src/mesh/assimp-master/port/dAssimp/assimp/api.d b/src/mesh/assimp-master/port/dAssimp/assimp/api.d
new file mode 100644
index 0000000..bc7a157
--- /dev/null
+++ b/src/mesh/assimp-master/port/dAssimp/assimp/api.d
@@ -0,0 +1,686 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (ASSIMP)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2020, ASSIMP Development Team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+ * Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+ * Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+ * Neither the name of the ASSIMP team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the ASSIMP Development Team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/**
+ * The C-style interface to the Open Asset import library.
+ *
+ * All functions of the C API have been collected in this module as function
+ * pointers, which are set by the dynamic library loader
+ * (<code>assimp.loader</code>).
+ */
+module assimp.api;
+
+import assimp.fileIO;
+import assimp.material;
+import assimp.math;
+import assimp.scene;
+import assimp.types;
+
+extern ( C ) {
+ /**
+ * Reads the given file and returns its content.
+ *
+ * If the call succeeds, the imported data is returned in an <code>aiScene</code>
+ * structure. The data is intended to be read-only, it stays property of the
+ * Assimp library and will be stable until <code>aiReleaseImport()</code> is
+ * called. After you're done with it, call <code>aiReleaseImport()</code> to
+ * free the resources associated with this file.
+ *
+ * If an error is encountered, null is returned instead. Call
+ * <code>aiGetErrorString()</code> to retrieve a human-readable error
+ * description.
+ *
+ * Params:
+ * pFile = Path and filename of the file to be imported,
+ * expected to be a null-terminated C-string. null is not a valid value.
+ * pFlags = Optional post processing steps to be executed after a
+ * successful import. Provide a bitwise combination of the
+ * <code>aiPostProcessSteps</code> flags. If you wish to inspect the
+ * imported scene first in order to fine-tune your post-processing
+ * setup, consider to use <code>aiApplyPostProcessing()</code>.
+ *
+ * Returns:
+ * A pointer to the imported data, null if the import failed.
+ */
+ aiScene* function( char* pFile, uint pFile ) aiImportFile;
+
+ /**
+ * Reads the given file using user-defined I/O functions and returns its
+ * content.
+ *
+ * If the call succeeds, the imported data is returned in an <code>aiScene</code>
+ * structure. The data is intended to be read-only, it stays property of the
+ * Assimp library and will be stable until <code>aiReleaseImport()</code> is
+ * called. After you're done with it, call <code>aiReleaseImport()</code> to
+ * free the resources associated with this file.
+ *
+ * If an error is encountered, null is returned instead. Call
+ * <code>aiGetErrorString()</code> to retrieve a human-readable error
+ * description.
+ *
+ * Params:
+ * pFile = Path and filename of the file to be imported,
+ * expected to be a null-terminated C-string. null is not a valid value.
+ * pFlags = Optional post processing steps to be executed after a
+ * successful import. Provide a bitwise combination of the
+ * <code>aiPostProcessSteps</code> flags. If you wish to inspect the
+ * imported scene first in order to fine-tune your post-processing
+ * setup, consider to use <code>aiApplyPostProcessing()</code>.
+ * pFS = An aiFileIO which will be used to open the model file itself
+ * and any other files the loader needs to open.
+ *
+ * Returns:
+ * A pointer to the imported data, null if the import failed.
+ */
+ aiScene* function( char* pFile, uint pFlags, aiFileIO* pFS ) aiImportFileEx;
+
+ /**
+ * Reads the scene from the given memory buffer.
+ *
+ * Reads the given file using user-defined I/O functions and returns its
+ * content.
+ *
+ * If the call succeeds, the imported data is returned in an <code>aiScene</code>
+ * structure. The data is intended to be read-only, it stays property of the
+ * Assimp library and will be stable until <code>aiReleaseImport()</code> is
+ * called. After you're done with it, call <code>aiReleaseImport()</code> to
+ * free the resources associated with this file.
+ *
+ * If an error is encountered, null is returned instead. Call
+ * <code>aiGetErrorString()</code> to retrieve a human-readable error
+ * description.
+ *
+ * Params:
+ * pBuffer = Pointer to the scene data.
+ * pLength = Size of pBuffer in bytes.
+ * pFlags = Optional post processing steps to be executed after a
+ * successful import. Provide a bitwise combination of the
+ * <code>aiPostProcessSteps</code> flags. If you wish to inspect the
+ * imported scene first in order to fine-tune your post-processing
+ * setup, consider to use <code>aiApplyPostProcessing()</code>.
+ * pHint = An additional hint to the library. If this is a non empty
+ * string, the library looks for a loader to support the file
+ * extension specified and passes the file to the first matching
+ * loader. If this loader is unable to complete the request, the
+ * library continues and tries to determine the file format on its
+ * own, a task that may or may not be successful.
+ *
+ * Returns:
+ * A pointer to the imported data, null if the import failed.
+ *
+ * Note:
+ * This is a straightforward way to decode models from memory buffers,
+ * but it doesn't handle model formats spreading their data across
+ * multiple files or even directories. Examples include OBJ or MD3, which
+ * outsource parts of their material stuff into external scripts. If you
+ * need the full functionality, provide a custom IOSystem to make Assimp
+ * find these files.
+ */
+ aiScene* function(
+ char* pBuffer,
+ uint pLength,
+ uint pFlags,
+ char* pHint
+ ) aiImportFileFromMemory;
+
+ /**
+ * Apply post-processing to an already-imported scene.
+ *
+ * This is strictly equivalent to calling <code>aiImportFile()</code> or
+ * <code>aiImportFileEx()</code> with the same flags. However, you can use
+ * this separate function to inspect the imported scene first to fine-tune
+ * your post-processing setup.
+ *
+ * Params:
+ * pScene = Scene to work on.
+ * pFlags = Provide a bitwise combination of the
+ * <code>aiPostProcessSteps</code> flags.
+ *
+ * Returns:
+ * A pointer to the post-processed data. Post processing is done in-place,
+ * meaning this is still the same <code>aiScene</code> which you passed
+ * for pScene. However, if post-processing failed, the scene could now be
+ * null. That's quite a rare case, post processing steps are not really
+ * designed to fail. To be exact, <code>aiProcess.ValidateDS</code> is
+ * currently the only post processing step which can actually cause the
+ * scene to be reset to null.
+ */
+ aiScene* function( aiScene* pScene, uint pFlags ) aiApplyPostProcessing;
+
+ /**
+ * Get one of the predefined log streams. This is the quick'n'easy solution
+ * to access Assimp's log system. Attaching a log stream can slightly reduce
+ * Assimp's overall import performance.
+ *
+ * Examples:
+ * ---
+ * aiLogStream stream = aiGetPredefinedLogStream(
+ * aiDefaultLogStream.FILE, "assimp.log.txt" );
+ * if ( stream.callback !is null ) {
+ * aiAttachLogStream( &stream );
+ * }
+ * ---
+ *
+ * Params:
+ * pStreams = The log stream destination.
+ * file = Solely for the <code>aiDefaultLogStream.FILE</code> flag:
+ * specifies the file to write to. Pass null for all other flags.
+ *
+ * Returns:
+ * The log stream, null if something went wrong.
+ */
+ aiLogStream function( aiDefaultLogStream pStreams, char* file ) aiGetPredefinedLogStream;
+
+ /**
+ * Attach a custom log stream to the libraries' logging system.
+ *
+ * Attaching a log stream can slightly reduce Assimp's overall import
+ * performance. Multiple log-streams can be attached.
+ *
+ * Params:
+ * stream = Describes the new log stream.
+ *
+ * Note: To ensure proper destruction of the logging system, you need to
+ * manually call <code>aiDetachLogStream()</code> on every single log
+ * stream you attach. Alternatively, <code>aiDetachAllLogStreams()</code>
+ * is provided.
+ */
+ void function( aiLogStream* stream ) aiAttachLogStream;
+
+ /**
+ * Enable verbose logging.
+ *
+ * Verbose logging includes debug-related stuff and detailed import
+ * statistics. This can have severe impact on import performance and memory
+ * consumption. However, it might be useful to find out why a file is not
+ * read correctly.
+ *
+ * Param:
+ * d = Whether verbose logging should be enabled.
+ */
+ void function( aiBool d ) aiEnableVerboseLogging;
+
+ /**
+ * Detach a custom log stream from the libraries' logging system.
+ *
+ * This is the counterpart of #aiAttachPredefinedLogStream. If you attached a stream,
+ * don't forget to detach it again.
+ *
+ * Params:
+ * stream = The log stream to be detached.
+ *
+ * Returns:
+ * <code>aiReturn.SUCCESS</code> if the log stream has been detached
+ * successfully.
+ *
+ * See: <code>aiDetachAllLogStreams</code>
+ */
+ aiReturn function( aiLogStream* stream ) aiDetachLogStream;
+
+ /**
+ * Detach all active log streams from the libraries' logging system.
+ *
+ * This ensures that the logging system is terminated properly and all
+ * resources allocated by it are actually freed. If you attached a stream,
+ * don't forget to detach it again.
+ *
+ * See: <code>aiAttachLogStream</code>, <code>aiDetachLogStream</code>
+ */
+ void function() aiDetachAllLogStreams;
+
+ /**
+ * Releases all resources associated with the given import process.
+ *
+ * Call this function after you're done with the imported data.
+ *
+ * Params:
+ * pScene = The imported data to release. null is a valid value.
+ */
+ void function( aiScene* pScene ) aiReleaseImport;
+
+ /**
+ * Returns the error text of the last failed import process.
+ *
+ * Returns:
+ * A textual description of the error that occurred at the last importing
+ * process. null if there was no error. There can't be an error if you
+ * got a non-null <code>aiScene</code> from
+ * <code>aiImportFile()/aiImportFileEx()/aiApplyPostProcessing()</code>.
+ */
+ char* function() aiGetErrorString;
+
+ /**
+ * Returns whether a given file extension is supported by this Assimp build.
+ *
+ * Params:
+ * szExtension = Extension for which to query support. Must include a
+ * leading dot '.'. Example: ".3ds", ".md3"
+ *
+ * Returns:
+ * <code>TRUE</code> if the file extension is supported.
+ */
+ aiBool function( char* szExtension ) aiIsExtensionSupported;
+
+ /**
+ * Gets a list of all file extensions supported by ASSIMP.
+ *
+ * Format of the list: "*.3ds;*.obj;*.dae".
+ *
+ * If a file extension is contained in the list this does, of course, not
+ * mean that Assimp is able to load all files with this extension.
+ *
+ * Params:
+ * szOut = String to receive the extension list. null is not a valid
+ * parameter.
+ */
+ void function( aiString* szOut ) aiGetExtensionList;
+
+ /**
+ * Gets the storage required by an imported asset
+ *
+ * Params:
+ * pIn = Asset to query storage size for.
+ * info = Data structure to be filled.
+ */
+ void function( aiScene* pIn, aiMemoryInfo* info ) aiGetMemoryRequirements;
+
+ /**
+ * Sets an integer property.
+ *
+ * Properties are always shared by all imports. It is not possible to
+ * specify them per import.
+ *
+ * Params:
+ * szName = Name of the configuration property to be set. All supported
+ * public properties are defined in the <code>config</code> module.
+ * value = New value for the property.
+ */
+ void function( char* szName, int value ) aiSetImportPropertyInteger;
+
+ /**
+ * Sets a floating-point property.
+ *
+ * Properties are always shared by all imports. It is not possible to
+ * specify them per import.
+ *
+ * Params:
+ * szName = Name of the configuration property to be set. All supported
+ * public properties are defined in the <code>config</code> module.
+ * value = New value for the property.
+ */
+ void function( char* szName, float value ) aiSetImportPropertyFloat;
+
+ /**
+ * Sets a string property.
+ *
+ * Properties are always shared by all imports. It is not possible to
+ * specify them per import.
+ *
+ * Params:
+ * szName = Name of the configuration property to be set. All supported
+ * public properties are defined in the <code>config</code> module.
+ * st = New value for the property.
+ */
+ void function( char* szName, aiString* st ) aiSetImportPropertyString;
+
+
+ /*
+ * Mathematical helper functions.
+ */
+
+ /**
+ * Constructs a quaternion from a 3x3 rotation matrix.
+ *
+ * Params:
+ * quat = Receives the output quaternion.
+ * mat = Matrix to 'quaternionize'.
+ */
+ void function( aiQuaternion* quat, aiMatrix3x3* mat ) aiCreateQuaternionFromMatrix;
+
+ /**
+ * Decomposes a transformation matrix into its rotational, translational and
+ * scaling components.
+ *
+ * Params:
+ * mat = Matrix to decompose.
+ * scaling = Receives the scaling component.
+ * rotation = Receives the rotational component.
+ * position = Receives the translational component.
+ */
+ void function(
+ aiMatrix4x4* mat,
+ aiVector3D* scaling,
+ aiQuaternion* rotation,
+ aiVector3D* position
+ ) aiDecomposeMatrix;
+
+ /**
+ * Transposes a 4x4 matrix (in-place).
+ *
+ * Params:
+ * mat = The matrix to be transposed.
+ */
+ void function( aiMatrix4x4* mat ) aiTransposeMatrix4;
+
+ /**
+ * Transposes a 3x3 matrix (in-place).
+ *
+ * Params:
+ * mat = The matrix to be transposed.
+ */
+ void function( aiMatrix3x3* mat ) aiTransposeMatrix3;
+
+ /**
+ * Transforms a vector by a 3x3 matrix (in-place).
+ *
+ * Params:
+ * vec = Vector to be transformed.
+ * mat = Matrix to transform the vector with.
+ */
+ void function( aiVector3D* vec, aiMatrix3x3* mat ) aiTransformVecByMatrix3;
+
+ /**
+ * Transforms a vector by a 4x4 matrix (in-place).
+ *
+ * Params:
+ * vec = Vector to be transformed.
+ * mat = Matrix to transform the vector with.
+ */
+ void function( aiVector3D* vec, aiMatrix4x4* mat ) aiTransformVecByMatrix4;
+
+ /**
+ * Multiplies two 4x4 matrices.
+ *
+ * Params:
+ * dst = First factor, receives result.
+ * src = Matrix to be multiplied with 'dst'.
+ */
+ void function( aiMatrix4x4* dst, aiMatrix4x4* src ) aiMultiplyMatrix4;
+
+ /**
+ * Multiplies two 3x3 matrices.
+ *
+ * Params:
+ * dst = First factor, receives result.
+ * src = Matrix to be multiplied with 'dst'.
+ */
+ void function( aiMatrix3x3* dst, aiMatrix3x3* src ) aiMultiplyMatrix3;
+
+ /**
+ * Constructs a 3x3 identity matrix.
+ *
+ * Params:
+ * mat = Matrix to receive its personal identity.
+ */
+ void function( aiMatrix3x3* mat ) aiIdentityMatrix3;
+
+ /**
+ * Constructs a 4x4 identity matrix.
+ *
+ * Params:
+ * mat = Matrix to receive its personal identity.
+ */
+ void function( aiMatrix4x4* mat ) aiIdentityMatrix4;
+
+
+ /*
+ * Material system functions.
+ */
+
+ /**
+ * Retrieves a material property with a specific key from the material.
+ *
+ * Params:
+ * pMat = Pointer to the input material. May not be null.
+ * pKey = Key to search for. One of the <code>AI_MATKEY_XXX</code>
+ * constants.
+ * type = Specifies the <code>aiTextureType</code> of the texture to be
+ * retrieved, 0 for non-texture properties.
+ * index = Index of the texture to be retrieved,
+ * 0 for non-texture properties.
+ * pPropOut = Pointer to receive a pointer to a valid
+ * <code>aiMaterialProperty</code> structure or null if the key has
+ * not been found.
+ */
+ aiReturn function(
+ aiMaterial* pMat,
+ char* pKey,
+ uint type,
+ uint index,
+ aiMaterialProperty** pPropOut
+ ) aiGetMaterialProperty;
+
+ /**
+ * Retrieves a single float value or an array of float values from the
+ * material.
+ *
+ * Examples:
+ * ---
+ * const FLOATS_IN_UV_TRANSFORM = ( aiUVTransform.sizeof / float.sizeof );
+ * uint valuesRead = FLOATS_IN_UV_TRANSFORM;
+ * bool success =
+ * ( aiGetMaterialFloatArray( &material, AI_MATKEY_UVTRANSFORM,
+ * aiTextureType.DIFFUSE, 0, cast( float* ) &trafo, &valuesRead ) ==
+ * aiReturn.SUCCESS ) &&
+ * ( valuesRead == FLOATS_IN_UV_TRANSFORM );
+ * ---
+ *
+ * Params:
+ * pMat = Pointer to the input material. May not be null.
+ * pKey = Key to search for. One of the AI_MATKEY_XXX constants.
+ * type = Specifies the <code>aiTextureType</code> of the texture to be
+ * retrieved, 0 for non-texture properties.
+ * index = Index of the texture to be retrieved,
+ * 0 for non-texture properties.
+ * pOut = Pointer to a buffer to receive the result.
+ * pMax = Specifies the size of the given buffer in floats. Receives the
+ * number of values (not bytes!) read. null to read a scalar property.
+ *
+ * Returns:
+ * Specifies whether the key has been found. If not, the output arrays
+ * remains unmodified and pMax is set to 0.
+ */
+ aiReturn function(
+ aiMaterial* pMat,
+ char* pKey,
+ uint type,
+ uint index,
+ float* pOut,
+ uint* pMax = null
+ ) aiGetMaterialFloatArray;
+
+ /**
+ * Convenience alias for <code>aiGetMaterialFloatArray()</code>.
+ */
+ alias aiGetMaterialFloatArray aiGetMaterialFloat;
+
+ /**
+ * Retrieves a single integer value or an array of integer values from the
+ * material.
+ *
+ * See: <code>aiGetMaterialFloatArray()</code>
+ */
+ aiReturn function(
+ aiMaterial* pMat,
+ char* pKey,
+ uint type,
+ uint index,
+ int* pOut,
+ uint* pMax = null
+ ) aiGetMaterialIntegerArray;
+
+ /**
+ * Convenience alias for <code>aiGetMaterialIntegerArray()</code>.
+ */
+ alias aiGetMaterialIntegerArray aiGetMaterialInteger;
+
+ /**
+ * Retrieves a color value from the material.
+ *
+ * See: <code>aiGetMaterialFloatArray()</code>
+ */
+ aiReturn function(
+ aiMaterial* pMat,
+ char* pKey,
+ uint type,
+ uint index,
+ aiColor4D* pOut
+ ) aiGetMaterialColor;
+
+ /**
+ * Retrieves a string value from the material.
+ *
+ * See: <code>aiGetMaterialFloatArray()</code>
+ */
+ aiReturn function(
+ aiMaterial* pMat,
+ char* pKey,
+ uint type,
+ uint index,
+ aiString* pOut
+ ) aiGetMaterialString;
+
+ /**
+ * Get the number of textures for a particular texture type.
+ *
+ * Params:
+ * pMat = Pointer to the input material. May not be NULL
+ * type = Texture type to check for
+ *
+ * Returns:
+ * Number of textures for this type.
+ */
+ uint function( aiMaterial* pMat, aiTextureType type ) aiGetMaterialTextureCount;
+
+ /**
+ * Helper function to get all values pertaining to a particular texture slot
+ * from a material structure.
+ *
+ * This function is provided just for convenience. You could also read the
+ * texture by parsing all of its properties manually. This function bundles
+ * all of them in a huge function monster.
+ *
+ * Params:
+ * mat = Pointer to the input material. May not be null.
+ * type = Specifies the texture stack (<code>aiTextureType</code>) to
+ * read from.
+ * index = Index of the texture. The function fails if the requested
+ * index is not available for this texture type.
+ * <code>aiGetMaterialTextureCount()</code> can be used to determine
+ * the number of textures in a particular texture stack.
+ * path = Receives the output path. null is not a valid value.
+ * mapping = Receives the texture mapping mode to be used.
+ * Pass null if you are not interested in this information.
+ * uvindex = For UV-mapped textures: receives the index of the UV source
+ * channel. Unmodified otherwise. Pass null if you are not interested
+ * in this information.
+ * blend = Receives the blend factor for the texture.
+ * Pass null if you are not interested in this information.
+ * op = Receives the texture blend operation to be perform between this
+ * texture and the previous texture. Pass null if you are not
+ * interested in this information.
+ * mapmode = Receives the mapping modes to be used for the texture. Pass
+ * a pointer to an array of two aiTextureMapMode's (one for each axis,
+ * UV order) or null if you are not interested in this information.
+ *
+ * Returns:
+ * <code>aiReturn.SUCCESS</code> on success, otherwise something else.
+ */
+ aiReturn function(
+ aiMaterial* mat,
+ aiTextureType type,
+ uint index,
+ aiString* path,
+ aiTextureMapping* mapping = null,
+ uint* uvindex = null,
+ float* blend = null,
+ aiTextureOp* op = null,
+ aiTextureMapMode* mapmode = null
+ ) aiGetMaterialTexture;
+
+
+ /*
+ * Versioning functions.
+ */
+
+ /**
+ * Returns a string with legal copyright and licensing information about
+ * Assimp.
+ *
+ * The string may include multiple lines.
+ *
+ * Returns:
+ * Pointer to static string.
+ */
+ char* function() aiGetLegalString;
+
+ /**
+ * Returns the current minor version number of the Assimp library.
+ *
+ * Returns:
+ * Minor version of the Assimp library.
+ */
+ uint function() aiGetVersionMinor;
+
+ /**
+ * Returns the current major version number of the Assimp library.
+ *
+ * Returns:
+ * Major version of the Assimp library.
+ */
+ uint function() aiGetVersionMajor;
+
+ /**
+ * Returns the repository revision of the Assimp library.
+ *
+ * Returns:
+ * SVN Repository revision number of the Assimp library.
+ */
+ uint function() aiGetVersionRevision;
+
+ /**
+ * Returns the flags Assimp was compiled with.
+ *
+ * Returns:
+ * Any bitwise combination of the ASSIMP_CFLAGS_xxx constants.
+ */
+ uint function() aiGetCompileFlags;
+}
diff --git a/src/mesh/assimp-master/port/dAssimp/assimp/assimp.d b/src/mesh/assimp-master/port/dAssimp/assimp/assimp.d
new file mode 100644
index 0000000..a147ee2
--- /dev/null
+++ b/src/mesh/assimp-master/port/dAssimp/assimp/assimp.d
@@ -0,0 +1,63 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (ASSIMP)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2020, ASSIMP Development Team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+ * Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+ * Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+ * Neither the name of the ASSIMP team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the ASSIMP Development Team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/**
+ * Include-all module provided for convenience.
+ */
+module assimp.assimp;
+
+public {
+ import assimp.animation;
+ import assimp.api;
+ import assimp.camera;
+ import assimp.config;
+ import assimp.fileIO;
+ import assimp.light;
+ import assimp.loader;
+ import assimp.material;
+ import assimp.math;
+ import assimp.mesh;
+ import assimp.postprocess;
+ import assimp.scene;
+ import assimp.texture;
+ import assimp.types;
+ import assimp.versionInfo;
+}
diff --git a/src/mesh/assimp-master/port/dAssimp/assimp/camera.d b/src/mesh/assimp-master/port/dAssimp/assimp/camera.d
new file mode 100644
index 0000000..5567be2
--- /dev/null
+++ b/src/mesh/assimp-master/port/dAssimp/assimp/camera.d
@@ -0,0 +1,182 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (ASSIMP)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2020, ASSIMP Development Team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+ * Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+ * Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+ * Neither the name of the ASSIMP team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the ASSIMP Development Team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/**
+ * Contains the data structure which is used to store the imported information
+ * about the virtual cameras in the scene.
+ */
+module assimp.camera;
+
+import assimp.math;
+import assimp.types;
+
+extern ( C ) {
+ /**
+ * Helper structure to describe a virtual camera.
+ *
+ * Cameras have a representation in the node graph and can be animated.
+ * An important aspect is that the camera itself is also part of the
+ * scenegraph. This means, any values such as the look-at vector are not
+ * absolute, they're <em>relative</em> to the coordinate system defined
+ * by the node which corresponds to the camera. This allows for camera
+ * animations. Static cameras parameters like the look-at or up vectors are
+ * usually specified directly in the class members, but beware, they could
+ * also be encoded in the node transformation. The following (pseudo)code
+ * sample shows how to do it.
+ *
+ * Examples:
+ * ---
+ * // Get the camera matrix for a camera at a specific time
+ * // if the node hierarchy for the camera does not contain
+ * // at least one animated node this is a static computation
+ * get-camera-matrix (node sceneRoot, camera cam) : matrix
+ * {
+ * node cnd = find-node-for-camera(cam)
+ * matrix cmt = identity()
+ *
+ * // as usual - get the absolute camera transformation for this frame
+ * for each node nd in hierarchy from sceneRoot to cnd
+ * matrix cur
+ * if (is-animated(nd))
+ * cur = eval-animation(nd)
+ * else cur = nd->mTransformation;
+ * cmt = mult-matrices( cmt, cur )
+ * end for
+ *
+ * // now multiply with the camera's own local transform
+ * cam = mult-matrices (cam, get-camera-matrix(cmt) )
+ * }
+ * ---
+ *
+ * Note: Some file formats (such as 3DS, ASE) export a "target point" – the
+ * point the camera is looking at (it can even be animated). Assimp
+ * writes the target point as a subnode of the camera's main node, called
+ * "<camName>.Target". However, this is just additional information; the
+ * transformation applied to the main camera node already makes the
+ * camera face the right direction.
+ */
+ struct aiCamera {
+ /**
+ * The name of the camera.
+ *
+ * There must be a node in the scenegraph with the same name. This node
+ * specifies the position of the camera in the scene hierarchy and can
+ * be animated.
+ */
+ aiString mName;
+
+
+ /**
+ * Position of the camera relative to the coordinate space defined by the
+ * corresponding node.
+ *
+ * The default value is 0|0|0.
+ */
+ aiVector3D mPosition;
+
+ /**
+ * Up vector of the camera coordinate system relative to the
+ * coordinate space defined by the corresponding node.
+ *
+ * The right vector of the camera coordinate system is the cross
+ * product of the up and lookAt vectors.
+ *
+ * The default value is 0|1|0. The vector may be normalized, but it
+ * needn't.
+ */
+ aiVector3D mUp;
+
+ /**
+ * Look-at vector of the camera coordinate system relative to the
+ * coordinate space defined by the corresponding node.
+ *
+ * This is the viewing direction of the user.
+ *
+ * The default value is 0|0|1. The vector may be normalized, but it
+ * needn't.
+ */
+ aiVector3D mLookAt;
+
+
+ /**
+ * Half horizontal field of view angle, in radians.
+ *
+ * The field of view angle is the angle between the center line of the
+ * screen and the left or right border.
+ *
+ * The default value is PI/4.
+ */
+ float mHorizontalFOV;
+
+ /**
+ * Distance of the near clipping plane from the camera.
+ *
+ * The value may not be 0.f (for arithmetic reasons to prevent
+ * a division through zero).
+ *
+ * The default value is 0.1f.
+ */
+ float mClipPlaneNear;
+
+ /**
+ * Distance of the far clipping plane from the camera.
+ *
+ * The far clipping plane must, of course, be further away than the
+ * near clipping plane. The ratio between the near and the far plane
+ * should not be too large (between 1000-10000 should be ok) to avoid
+ * floating-point inaccuracies which could lead to z-fighting.
+ *
+ * The default value is 1000.f.
+ */
+ float mClipPlaneFar;
+
+ /**
+ * Screen aspect ratio.
+ *
+ * This is the ration between the width and the height of the
+ * screen. Typical values are 4/3, 1/2 or 1/1. This value is
+ * 0 if the aspect ratio is not defined in the source file.
+ *
+ * 0 is also the default value.
+ */
+ float mAspect;
+ }
+}
diff --git a/src/mesh/assimp-master/port/dAssimp/assimp/config.d b/src/mesh/assimp-master/port/dAssimp/assimp/config.d
new file mode 100644
index 0000000..761156b
--- /dev/null
+++ b/src/mesh/assimp-master/port/dAssimp/assimp/config.d
@@ -0,0 +1,705 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (ASSIMP)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2020, ASSIMP Development Team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+ * Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+ * Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+ * Neither the name of the ASSIMP team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the ASSIMP Development Team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/**
+ * Defines constants for configurable properties for the library.
+ *
+ * These are set via <code>aiSetImportPropertyInteger()</code>,
+ * <code>aiSetImportPropertyFloat()</code> and
+ * <code>aiSetImportPropertyString()</code>.
+ */
+module assimp.config;
+
+extern ( C ) {
+ /*
+ * Library settings.
+ *
+ * General, global settings.
+ */
+
+ /**
+ * Enables time measurements.
+ *
+ * If enabled, measures the time needed for each part of the loading
+ * process (i.e. IO time, importing, postprocessing, ..) and dumps these
+ * timings to the DefaultLogger. See the performance page in the main
+ * Assimp docs information on this topic.
+ *
+ * Property type: bool. Default value: false.
+ */
+ const char* AI_CONFIG_GLOB_MEASURE_TIME = "GLOB_MEASURE_TIME";
+
+ version( none ) { // not implemented yet
+ /**
+ * Set Assimp's multithreading policy.
+ *
+ * This setting is ignored if Assimp was built without boost.thread support
+ * (<code>ASSIMP_BUILD_NO_THREADING</code>, which is implied by
+ * <code>ASSIMP_BUILD_BOOST_WORKAROUND</code>).
+ *
+ * Possible values are: -1 to let Assimp decide what to do, 0 to disable
+ * multithreading entirely and any number larger than 0 to force a specific
+ * number of threads. Assimp is always free to ignore this settings, which
+ * is merely a hint. Usually, the default value (-1) will be fine. However,
+ * if Assimp is used concurrently from multiple user threads, it might be
+ * useful to limit each Importer instance to a specific number of cores.
+ *
+ * For more information, see the threading page in the main Assimp docs.
+ *
+ * Property type: int, default value: -1.
+ */
+ const char* AI_CONFIG_GLOB_MULTITHREADING = "GLOB_MULTITHREADING";
+ }
+
+
+ /*
+ * Post processing settings.
+ *
+ * Various options to fine-tune the behavior of a specific post processing step.
+ */
+
+ /**
+ * Specifies the maximum angle that may be between two vertex tangents that
+ * their tangents and bitangents are smoothed.
+ *
+ * This applies to the <code>CalcTangentSpace</code> step. The angle is
+ * specified in degrees, so 180 corresponds to PI radians.
+ *
+ * The default value is 45, the maximum value is 175.
+ *
+ * Property type: float.
+ */
+ const char* AI_CONFIG_PP_CT_MAX_SMOOTHING_ANGLE = "PP_CT_MAX_SMOOTHING_ANGLE";
+
+ /**
+ * Specifies the maximum angle that may be between two face normals at the
+ * same vertex position that their are smoothed together. Sometimes referred
+ * to as 'crease angle'.
+ *
+ * This applies to the <code>GenSmoothNormals</code> step. The angle is
+ * specified in degrees, so 180 corresponds to PI radians.
+ *
+ * The default value is 175 degrees (all vertex normals are smoothed), the
+ * maximum value is 175, too.
+ *
+ * Property type: float.
+ *
+ * Warning:
+ * Setting this option may cause a severe loss of performance. The
+ * performance is unaffected if the <code>AI_CONFIG_FAVOUR_SPEED</code>
+ * flag is set but the output quality may be reduced.
+ */
+ const char* AI_CONFIG_PP_GSN_MAX_SMOOTHING_ANGLE = "PP_GSN_MAX_SMOOTHING_ANGLE";
+
+ /**
+ * Sets the colormap (= palette) to be used to decode embedded textures in
+ * MDL (Quake or 3DGS) files.
+ *
+ * This must be a valid path to a file. The file is 768 (256*3) bytes large
+ * and contains RGB triplets for each of the 256 palette entries. The
+ * default value is colormap.lmp. If the file is not found, a default
+ * palette (from Quake 1) is used.
+ *
+ * Property type: string.
+ */
+ const char* AI_CONFIG_IMPORT_MDL_COLORMAP = "IMPORT_MDL_COLORMAP";
+
+ /**
+ * Configures the <code>RemoveRedundantMaterials</code> step to keep
+ * materials matching a name in a given list.
+ *
+ * This is a list of 1 to n strings, ' ' serves as delimiter character.
+ * Identifiers containing whitespaces must be enclosed in <em>single</em>
+ * quotation marks. For example: <code>
+ * "keep-me and_me_to anotherMaterialToBeKept \'name with whitespace\'"</code>.
+ * Linefeeds, tabs or carriage returns are treated as whitespace.
+ *
+ * If a material matches on of these names, it will not be modified or
+ * removed by the postprocessing step nor will other materials be replaced
+ * by a reference to it.
+ *
+ * This option might be useful if you are using some magic material names
+ * to pass additional semantics through the content pipeline. This ensures
+ * they won't be optimized away, but a general optimization is still
+ * performed for materials not contained in the list.
+ *
+ * Default value: n/a
+ *
+ * Property type: string.
+ *
+ * Note: Material names are case sensitive.
+ */
+ const char* AI_CONFIG_PP_RRM_EXCLUDE_LIST = "PP_RRM_EXCLUDE_LIST";
+
+ /**
+ * Configures the <code>PretransformVertices</code> step to keep the scene
+ * hierarchy. Meshes are moved to worldspace, but no optimization is
+ * performed (meshes with equal materials are not joined, the total number
+ * of meshes will not change).
+ *
+ * This option could be of use for you if the scene hierarchy contains
+ * important additional information which you intend to parse.
+ * For rendering, you can still render all meshes in the scene without
+ * any transformations.
+ *
+ * Default value: false.
+ *
+ * Property type: bool.
+ */
+ const char* AI_CONFIG_PP_PTV_KEEP_HIERARCHY = "PP_PTV_KEEP_HIERARCHY";
+
+ /**
+ * Configures the <code>PretransformVertices</code> step to normalize all
+ * vertex components into the -1...1 range. That is, a bounding box for the
+ * whole scene is computed, the maximum component is taken and all meshes
+ * are scaled appropriately (uniformly of course!).
+ *
+ * This might be useful if you don't know the spatial dimension of the input
+ * data.
+ */
+ const char* AI_CONFIG_PP_PTV_NORMALIZE = "PP_PTV_NORMALIZE";
+
+ /**
+ * Configures the <code>FindDegenerates</code> step to remove degenerated
+ * primitives from the import – immediately.
+ *
+ * The default behaviour converts degenerated triangles to lines and
+ * degenerated lines to points. See the documentation to the
+ * <code>FindDegenerates</code> step for a detailed example of the various
+ * ways to get rid of these lines and points if you don't want them.
+ *
+ * Default value: false.
+ *
+ * Property type: bool.
+ */
+ const char* AI_CONFIG_PP_FD_REMOVE = "PP_FD_REMOVE";
+
+ /**
+ * Configures the <code>OptimizeGraph</code> step to preserve nodes matching
+ * a name in a given list.
+ *
+ * This is a list of 1 to n strings, ' ' serves as delimiter character.
+ * Identifiers containing whitespaces must be enclosed in <em>single</em>
+ * quotation marks. For example: <code>
+ * "keep-me and_me_to anotherMaterialToBeKept \'name with whitespace\'"</code>.
+ * Linefeeds, tabs or carriage returns are treated as whitespace.
+ *
+ * If a node matches on of these names, it will not be modified or
+ * removed by the postprocessing step.
+ *
+ * This option might be useful if you are using some magic node names
+ * to pass additional semantics through the content pipeline. This ensures
+ * they won't be optimized away, but a general optimization is still
+ * performed for nodes not contained in the list.
+ *
+ * Default value: n/a
+ *
+ * Property type: string.
+ *
+ * Note: Node names are case sensitive.
+ */
+ const char* AI_CONFIG_PP_OG_EXCLUDE_LIST = "PP_OG_EXCLUDE_LIST";
+
+ /**
+ * Sets the maximum number of triangles in a mesh.
+ *
+ * This is used by the <code>SplitLargeMeshes</code> step to determine
+ * whether a mesh must be split or not.
+ *
+ * Default value: AI_SLM_DEFAULT_MAX_TRIANGLES.
+ *
+ * Property type: integer.
+ */
+ const char* AI_CONFIG_PP_SLM_TRIANGLE_LIMIT = "PP_SLM_TRIANGLE_LIMIT";
+
+ /**
+ * The default value for the AI_CONFIG_PP_SLM_TRIANGLE_LIMIT setting.
+ */
+ const AI_SLM_DEFAULT_MAX_TRIANGLES = 1000000;
+
+ /**
+ * Sets the maximum number of vertices in a mesh.
+ *
+ * This is used by the <code>SplitLargeMeshes</code> step to determine
+ * whether a mesh must be split or not.
+ *
+ * Default value: AI_SLM_DEFAULT_MAX_VERTICES
+ *
+ * Property type: integer.
+ */
+ const char* AI_CONFIG_PP_SLM_VERTEX_LIMIT = "PP_SLM_VERTEX_LIMIT";
+
+ /**
+ * The default value for the AI_CONFIG_PP_SLM_VERTEX_LIMIT setting.
+ */
+ const AI_SLM_DEFAULT_MAX_VERTICES = 1000000;
+
+ /**
+ * Sets the maximum number of bones affecting a single vertex.
+ *
+ * This is used by the <code>LimitBoneWeights</code> step.
+ *
+ * Default value: AI_LBW_MAX_WEIGHTS
+ *
+ * Property type: integer.
+ */
+ const char* AI_CONFIG_PP_LBW_MAX_WEIGHTS = "PP_LBW_MAX_WEIGHTS";
+
+ /**
+ * The default value for the AI_CONFIG_PP_LBW_MAX_WEIGHTS setting.
+ */
+ const AI_LMW_MAX_WEIGHTS = 0x4;
+
+ /**
+ * Sets the size of the post-transform vertex cache to optimize the
+ * vertices for. This configures the <code>ImproveCacheLocality</code> step.
+ *
+ * The size is given in vertices. Of course you can't know how the vertex
+ * format will exactly look like after the import returns, but you can still
+ * guess what your meshes will probably have.
+ *
+ * The default value results in slight performance improvements for most
+ * nVidia/AMD cards since 2002.
+ *
+ * Default value: PP_ICL_PTCACHE_SIZE
+ *
+ * Property type: integer.
+ */
+ const char* AI_CONFIG_PP_ICL_PTCACHE_SIZE = "PP_ICL_PTCACHE_SIZE";
+
+ /**
+ * The default value for the AI_CONFIG_PP_ICL_PTCACHE_SIZE config option.
+ */
+ const PP_ICL_PTCACHE_SIZE = 12;
+
+ /**
+ * Components of the <code>aiScene</code> and <code>aiMesh</code> data
+ * structures that can be excluded from the import by using the
+ * <code>RemoveComponent</code> step.
+ *
+ * See the documentation to <code>RemoveComponent</code> for more details.
+ */
+ enum aiComponent : uint {
+ /**
+ * Normal vectors.
+ */
+ NORMALS = 0x2,
+
+ /**
+ * Tangents and bitangents.
+ */
+ TANGENTS_AND_BITANGENTS = 0x4,
+
+ /**
+ * <em>All</em> color sets.
+ *
+ * Use aiComponent_COLORSn( N ) to specify the N'th set.
+ */
+ COLORS = 0x8,
+
+ /**
+ * <em>All</em> texture UV coordinate sets.
+ *
+ * Use aiComponent_TEXCOORDn( N ) to specify the N'th set.
+ */
+ TEXCOORDS = 0x10,
+
+ /**
+ * Bone weights from all meshes.
+ *
+ * The corresponding scenegraph nodes are <em>not</em> removed. Use the
+ * <code>OptimizeGraph</code> step to do this.
+ */
+ BONEWEIGHTS = 0x20,
+
+ /**
+ * Node animations (<code>aiScene.mAnimations</code>).
+ *
+ * The corresponding scenegraph nodes are <em>not</em> removed. Use the
+ * <code>OptimizeGraph</code> step to do this.
+ */
+ ANIMATIONS = 0x40,
+
+ /**
+ * Embedded textures (<code>aiScene.mTextures</code>).
+ */
+ TEXTURES = 0x80,
+
+ /**
+ * Light sources (<code>aiScene.mLights</code>).
+ *
+ * The corresponding scenegraph nodes are <em>not</em> removed. Use the
+ * <code>OptimizeGraph</code> step to do this.
+ */
+ LIGHTS = 0x100,
+
+ /**
+ * Cameras (<code>aiScene.mCameras</code>).
+ *
+ * The corresponding scenegraph nodes are <em>not</em> removed. Use the
+ * <code>OptimizeGraph</code> step to do this.
+ */
+ CAMERAS = 0x200,
+
+ /**
+ * Meshes (<code>aiScene.mMeshes</code>).
+ */
+ MESHES = 0x400,
+
+ /** Materials.
+ *
+ * One default material will be generated, so
+ * <code>aiScene.mNumMaterials</code> will be 1.
+ */
+ MATERIALS = 0x800
+ }
+
+ /**
+ * Specifies a certain color channel to remove.
+ */
+ uint aiComponent_COLORSn( uint n ) { return 1u << ( n + 20u ); }
+
+ /**
+ * Specifies a certain UV coordinate channel to remove.
+ */
+ uint aiComponent_TEXCOORDSn( uint n ) { return 1u << ( n + 25u ); }
+
+ /**
+ * Input parameter to the <code>RemoveComponent</code> step:
+ * Specifies the parts of the data structure to be removed.
+ *
+ * See the documentation to this step for further details.
+ *
+ * Default value: 0
+ *
+ * Property type: integer (bitwise combination of <code>aiComponent</code>
+ * flags).
+ *
+ * Note: If no valid mesh is remaining after the step has been executed, the
+ * import <em>fails</em>, because there is no data to work on anymore.
+ */
+ const char* AI_CONFIG_PP_RVC_FLAGS = "PP_RVC_FLAGS";
+
+ /**
+ * Input parameter to the <code>SortByPType</code> step:
+ * Specifies which primitive types are removed by the step.
+ *
+ * This is a bitwise combination of the <code>aiPrimitiveType</code> flags.
+ * Specifying all of them is illegal, of course. A typical use would be to
+ * exclude all line and point meshes from the import.
+ *
+ * Default value: 0
+ *
+ * Property type: integer.
+ */
+ const char* AI_CONFIG_PP_SBP_REMOVE = "PP_SBP_REMOVE";
+
+ /**
+ * Input parameter to the <code>FindInvalidData</code> step:
+ * Specifies the floating-point accuracy for animation values.
+ *
+ * The step checks for animation tracks where all frame values are
+ * absolutely equal and removes them. This tweakable controls the epsilon
+ * for floating-point comparisons – two keys are considered equal if the
+ * invariant abs(n0-n1) > epsilon holds true for all vector respectively
+ * quaternion components.
+ *
+ * Default value: 0 (exact comparison).
+ *
+ * Property type: float.
+ */
+ const char* AI_CONFIG_PP_FID_ANIM_ACCURACY = "PP_FID_ANIM_ACCURACY";
+
+ /**
+ * The <code>TransformUVCoords</code> step evaluates UV scalings.
+ */
+ const AI_UVTRAFO_SCALING = 0x1;
+
+ /**
+ * The <code>TransformUVCoords</code> step evaluates UV rotations.
+ */
+ const AI_UVTRAFO_ROTATION = 0x2;
+
+ /**
+ * The <code>TransformUVCoords</code> step evaluates UV translation.
+ */
+ const AI_UVTRAFO_TRANSLATION = 0x4;
+
+ /**
+ * The <code>TransformUVCoords</code> step evaluates all UV translations.
+ */
+ const AI_UVTRAFO_ALL =
+ AI_UVTRAFO_SCALING
+ | AI_UVTRAFO_ROTATION
+ | AI_UVTRAFO_TRANSLATION;
+
+ /**
+ * Input parameter to the <code>TransformUVCoords</code> step: Specifies
+ * which UV transformations are evaluated.
+ *
+ * Default value: AI_UVTRAFO_ALL.
+ *
+ * Property type: integer (bitwise combination of the
+ * <code>AI_UVTRAFO_XXX<code> flag).
+ */
+ const char* AI_CONFIG_PP_TUV_EVALUATE = "PP_TUV_EVALUATE";
+
+ /**
+ * A hint to assimp to favour speed against import quality.
+ *
+ * Enabling this option may result in faster loading, but it needn't.
+ * It represents just a hint to loaders and post-processing steps to use
+ * faster code paths, if possible.
+ *
+ * Default value: false.
+ *
+ * Property type: bool.
+ */
+ const char* AI_CONFIG_FAVOUR_SPEED = "FAVOUR_SPEED";
+
+
+ /*
+ * Importer settings.
+ *
+ * Various stuff to fine-tune the behaviour of specific importer plugins.
+ */
+
+ /**
+ * Set the vertex animation keyframe to be imported.
+ *
+ * Assimp does not support vertex keyframes (only bone animation is
+ * supported). The library reads only one frame of models with vertex
+ * animations.
+ *
+ * Default value: 0 (first frame).
+ *
+ * Property type: integer.
+ *
+ * Note: This option applies to all importers. However, it is also possible
+ * to override the global setting for a specific loader. You can use the
+ * AI_CONFIG_IMPORT_XXX_KEYFRAME options (where XXX is a placeholder for
+ * the file format for which you want to override the global setting).
+ */
+ const char* AI_CONFIG_IMPORT_GLOBAL_KEYFRAME = "IMPORT_GLOBAL_KEYFRAME";
+
+ const char* AI_CONFIG_IMPORT_MD3_KEYFRAME = "IMPORT_MD3_KEYFRAME";
+ const char* AI_CONFIG_IMPORT_MD2_KEYFRAME = "IMPORT_MD2_KEYFRAME";
+ const char* AI_CONFIG_IMPORT_MDL_KEYFRAME = "IMPORT_MDL_KEYFRAME";
+ const char* AI_CONFIG_IMPORT_MDC_KEYFRAME = "IMPORT_MDC_KEYFRAME";
+ const char* AI_CONFIG_IMPORT_SMD_KEYFRAME = "IMPORT_SMD_KEYFRAME";
+ const char* AI_CONFIG_IMPORT_UNREAL_KEYFRAME = "IMPORT_UNREAL_KEYFRAME";
+
+
+ /**
+ * Configures the AC loader to collect all surfaces which have the
+ * "Backface cull" flag set in separate meshes.
+ *
+ * Default value: true.
+ *
+ * Property type: bool.
+ */
+ const char* AI_CONFIG_IMPORT_AC_SEPARATE_BFCULL = "IMPORT_AC_SEPARATE_BFCULL";
+
+ /**
+ * Configures the UNREAL 3D loader to separate faces with different surface
+ * flags (e.g. two-sided vs. single-sided).
+ *
+ * Default value: true.
+ *
+ * Property type: bool.
+ */
+ const char* AI_CONFIG_IMPORT_UNREAL_HANDLE_FLAGS = "UNREAL_HANDLE_FLAGS";
+
+ /**
+ * Configures the terragen import plugin to compute uv's for terrains, if
+ * not given. Furthermore, a default texture is assigned.
+ *
+ * UV coordinates for terrains are so simple to compute that you'll usually
+ * want to compute them on your own, if you need them. This option is intended
+ * for model viewers which want to offer an easy way to apply textures to
+ * terrains.
+ *
+ * Default value: false.
+ *
+ * Property type: bool.
+ */
+ const char* AI_CONFIG_IMPORT_TER_MAKE_UVS = "IMPORT_TER_MAKE_UVS";
+
+ /**
+ * Configures the ASE loader to always reconstruct normal vectors basing on
+ * the smoothing groups loaded from the file.
+ *
+ * Many ASE files have invalid normals (they're not orthonormal).
+ *
+ * Default value: true.
+ *
+ * Property type: bool.
+ */
+ const char* AI_CONFIG_IMPORT_ASE_RECONSTRUCT_NORMALS = "IMPORT_ASE_RECONSTRUCT_NORMALS";
+
+ /**
+ * Configures the M3D loader to detect and process multi-part Quake player
+ * models.
+ *
+ * These models usually consist of three files, <code>lower.md3</code>,
+ * <code>upper.md3</code> and <code>head.md3</code>. If this property is set
+ * to true, Assimp will try to load and combine all three files if one of
+ * them is loaded.
+ *
+ * Default value: true.
+ *
+ * Property type: bool.
+ */
+ const char* AI_CONFIG_IMPORT_MD3_HANDLE_MULTIPART = "IMPORT_MD3_HANDLE_MULTIPART";
+
+ /**
+ * Tells the MD3 loader which skin files to load.
+ *
+ * When loading MD3 files, Assimp checks whether a file
+ * <code><md3_file_name>_<skin_name>.skin</code> is existing. These files
+ * are used by Quake 3 to be able to assign different skins (e.g. red and
+ * blue team) to models. 'default', 'red', 'blue' are typical skin names.
+ *
+ * Default value: "default".
+ *
+ * Property type: string.
+ */
+ const char* AI_CONFIG_IMPORT_MD3_SKIN_NAME = "IMPORT_MD3_SKIN_NAME";
+
+ /**
+ * Specify the Quake 3 shader file to be used for a particular MD3 file.
+ * This can also be a search path.
+ *
+ * By default Assimp's behaviour is as follows: If a MD3 file
+ * <code>[any_path]/models/[any_q3_subdir]/[model_name]/[file_name].md3</code>
+ * is loaded, the library tries to locate the corresponding shader file in
+ * <code>[any_path]/scripts/[model_name].shader</code>. This property
+ * overrides this behaviour. It can either specify a full path to the shader
+ * to be loaded or alternatively the path (relative or absolute) to the
+ * directory where the shaders for all MD3s to be loaded reside. Assimp
+ * attempts to open <code>[dir]/[model_name].shader</code> first,
+ * <code>[dir]/[file_name].shader</code> is the fallback file. Note that
+ * <code>[dir]</code> should have a terminal (back)slash.
+ *
+ * Default value: n/a.
+ *
+ * Property type: string.
+ */
+ const char* AI_CONFIG_IMPORT_MD3_SHADER_SRC = "IMPORT_MD3_SHADER_SRC";
+
+ /**
+ * Configures the LWO loader to load just one layer from the model.
+ *
+ * LWO files consist of layers and in some cases it could be useful to load
+ * only one of them. This property can be either a string – which specifies
+ * the name of the layer – or an integer – the index of the layer. If the
+ * property is not set the whole LWO model is loaded. Loading fails if the
+ * requested layer is not available. The layer index is zero-based and the
+ * layer name may not be empty.
+ *
+ * Default value: all layers are loaded.
+ *
+ * Property type: integer/string.
+ */
+ const char* AI_CONFIG_IMPORT_LWO_ONE_LAYER_ONLY = "IMPORT_LWO_ONE_LAYER_ONLY";
+
+ /**
+ * Configures the MD5 loader to not load the MD5ANIM file for a MD5MESH file
+ * automatically.
+ *
+ * The default strategy is to look for a file with the same name but the
+ * MD5ANIM extension in the same directory. If it is found, it is loaded
+ * and combined with the MD5MESH file. This configuration option can be
+ * used to disable this behaviour.
+ *
+ * Default value: false.
+ *
+ * Property type: bool.
+ */
+ const char* AI_CONFIG_IMPORT_MD5_NO_ANIM_AUTOLOAD = "IMPORT_MD5_NO_ANIM_AUTOLOAD";
+
+ /**
+ * Defines the begin of the time range for which the LWS loader evaluates
+ * animations and computes <code>aiNodeAnim</code>s.
+ *
+ * Assimp provides full conversion of LightWave's envelope system, including
+ * pre and post conditions. The loader computes linearly subsampled animation
+ * chanels with the frame rate given in the LWS file. This property defines
+ * the start time. Note: animation channels are only generated if a node
+ * has at least one envelope with more tan one key assigned. This property.
+ * is given in frames, '0' is the first frame. By default, if this property
+ * is not set, the importer takes the animation start from the input LWS
+ * file ('FirstFrame' line).
+ *
+ * Default value: read from file.
+ *
+ * Property type: integer.
+ *
+ * See: <code>AI_CONFIG_IMPORT_LWS_ANIM_END</code> – end of the imported
+ * time range
+ */
+ const char* AI_CONFIG_IMPORT_LWS_ANIM_START = "IMPORT_LWS_ANIM_START";
+ const char* AI_CONFIG_IMPORT_LWS_ANIM_END = "IMPORT_LWS_ANIM_END";
+
+ /**
+ * Defines the output frame rate of the IRR loader.
+ *
+ * IRR animations are difficult to convert for Assimp and there will always
+ * be a loss of quality. This setting defines how many keys per second are
+ * returned by the converter.
+ *
+ * Default value: 100.
+ *
+ * Property type: integer.
+ */
+ const char* AI_CONFIG_IMPORT_IRR_ANIM_FPS = "IMPORT_IRR_ANIM_FPS";
+
+ /**
+ * Ogre Importer will try to load this material file.
+ *
+ * Ogre Mehs contain only the material name, not the material file. If there
+ * is no material file with the same name as the material, Ogre Importer
+ * will try to load this file and search the material in it.
+ *
+ * Property type: string. Default value: "Scene.material".
+ */
+ const char* AI_CONFIG_IMPORT_OGRE_MATERIAL_FILE = "IMPORT_OGRE_MATERIAL_FILE";
+}
diff --git a/src/mesh/assimp-master/port/dAssimp/assimp/fileIO.d b/src/mesh/assimp-master/port/dAssimp/assimp/fileIO.d
new file mode 100644
index 0000000..108d883
--- /dev/null
+++ b/src/mesh/assimp-master/port/dAssimp/assimp/fileIO.d
@@ -0,0 +1,140 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (ASSIMP)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2020, ASSIMP Development Team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+ * Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+ * Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+ * Neither the name of the ASSIMP team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the ASSIMP Development Team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/**
+ * The data structures necessary to use Assimip with a custom IO system.
+ */
+module assimp.fileIO;
+
+import assimp.types;
+
+extern ( C ) {
+ // aiFile callbacks
+ alias size_t function( aiFile*, char*, size_t, size_t ) aiFileWriteProc;
+ alias size_t function( aiFile*, char*, size_t, size_t ) aiFileReadProc;
+ alias size_t function( aiFile* ) aiFileTellProc;
+ alias void function( aiFile* ) aiFileFlushProc;
+ alias aiReturn function( aiFile*, size_t, aiOrigin ) aiFileSeek;
+
+ // aiFileIO callbacks
+ alias aiFile* function( aiFileIO*, char*, char* ) aiFileOpenProc;
+ alias void function( aiFileIO*, aiFile* ) aiFileCloseProc;
+
+ /**
+ * Represents user-defined data.
+ */
+ alias char* aiUserData;
+
+ /**
+ * File system callbacks.
+ *
+ * Provided are functions to open and close files. Supply a custom structure
+ * to the import function. If you don't, a default implementation is used.
+ * Use custom file systems to enable reading from other sources, such as
+ * ZIPs or memory locations.
+ */
+ struct aiFileIO {
+ /**
+ * Function used to open a new file
+ */
+ aiFileOpenProc OpenProc;
+
+ /**
+ * Function used to close an existing file
+ */
+ aiFileCloseProc CloseProc;
+
+ /**
+ * User-defined, opaque data.
+ */
+ aiUserData UserData;
+ }
+
+ /**
+ * File callbacks.
+ *
+ * Actually, it's a data structure to wrap a set of <code>fXXXX</code>
+ * (e.g <code>fopen()</code>) replacement functions.
+ *
+ * The default implementation of the functions utilizes the <code>fXXX</code>
+ * functions from the CRT. However, you can supply a custom implementation
+ * to Assimp by passing a custom <code>aiFileIO</code>. Use this to enable
+ * reading from other sources such as ZIP archives or memory locations.
+ */
+ struct aiFile {
+ /**
+ * Callback to read from a file.
+ */
+ aiFileReadProc ReadProc;
+
+ /**
+ * Callback to write to a file.
+ */
+ aiFileWriteProc WriteProc;
+
+ /**
+ * Callback to retrieve the current position of the file cursor
+ * (<code>ftell()</code>).
+ */
+ aiFileTellProc TellProc;
+
+ /**
+ * Callback to retrieve the size of the file, in bytes.
+ */
+ aiFileTellProc FileSizeProc;
+
+ /**
+ * Callback to set the current position of the file cursor
+ * (<code>fseek()</code>).
+ */
+ aiFileSeek SeekProc;
+
+ /**
+ * Callback to flush the file contents.
+ */
+ aiFileFlushProc FlushProc;
+
+ /**
+ * User-defined, opaque data.
+ */
+ aiUserData UserData;
+ }
+}
diff --git a/src/mesh/assimp-master/port/dAssimp/assimp/light.d b/src/mesh/assimp-master/port/dAssimp/assimp/light.d
new file mode 100644
index 0000000..0842d67
--- /dev/null
+++ b/src/mesh/assimp-master/port/dAssimp/assimp/light.d
@@ -0,0 +1,215 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (ASSIMP)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2020, ASSIMP Development Team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+ * Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+ * Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+ * Neither the name of the ASSIMP team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the ASSIMP Development Team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/**
+ * Contains the data structures which are used to store the imported information
+ * about the light sources in the scene.
+ */
+module assimp.light;
+
+import assimp.math;
+import assimp.types;
+
+extern ( C ) {
+ /**
+ * Enumerates all supported types of light sources.
+ */
+ enum aiLightSourceType : uint {
+ UNDEFINED = 0x0,
+
+ /**
+ * A directional light source has a well-defined direction but is
+ * infinitely far away. That's quite a good approximation for sun light.
+ */
+ DIRECTIONAL = 0x1,
+
+ /**
+ * A point light source has a well-defined position in space but no
+ * direction – it emits light in all directions. A normal bulb is a point
+ * light.
+ */
+ POINT = 0x2,
+
+ /**
+ * A spot light source emits light in a specific angle. It has a position
+ * and a direction it is pointing to. A good example for a spot light is
+ * a light spot in sport arenas.
+ */
+ SPOT = 0x3
+ }
+
+ /**
+ * Helper structure to describe a light source.
+ *
+ * Assimp supports multiple sorts of light sources, including directional,
+ * point and spot lights. All of them are defined with just a single
+ * structure and distinguished by their parameters.
+ *
+ * Note: Some file formats (such as 3DS, ASE) export a "target point" – the
+ * point a spot light is looking at (it can even be animated). Assimp
+ * writes the target point as a subnode of a spotlights's main node, called
+ * <code>[spotName].Target</code>. However, this is just additional
+ * information then, the transformation tracks of the main node make the
+ * spot light already point in the right direction.
+ */
+ struct aiLight {
+ /**
+ * The name of the light source.
+ *
+ * There must be a node in the scenegraph with the same name. This node
+ * specifies the position of the light in the scenehierarchy and can be
+ * animated.
+ */
+ aiString mName;
+
+ /**
+ * The type of the light source.
+ *
+ * <code>aiLightSource.UNDEFINED</code> is not a valid value for this
+ * member.
+ */
+ aiLightSourceType mType;
+
+ /**
+ * Position of the light source in space. Relative to the transformation
+ * of the node corresponding to the light.
+ *
+ * The position is undefined for directional lights.
+ */
+ aiVector3D mPosition;
+
+ /**
+ * Direction of the light source in space. Relative to the transformation
+ * of the node corresponding to the light.
+ *
+ * The direction is undefined for point lights. The vector may be
+ * normalized, but it needn't.
+ */
+ aiVector3D mDirection;
+
+ /**
+ * Constant light attenuation factor.
+ *
+ * The intensity of the light source at a given distance
+ * <code>d</code> from the light's position is
+ * <code>1/( att0 + att1 * d + att2 * d * d )</code>. This member
+ * corresponds to the <code>att0</code> variable in the equation.
+ *
+ * Naturally undefined for directional lights.
+ */
+ float mAttenuationConstant;
+
+ /**
+ * Linear light attenuation factor.
+ *
+ * The intensity of the light source at a given distance
+ * <code>d</code> from the light's position is
+ * <code>1/( att0 + att1 * d + att2 * d * d )</code>. This member
+ * corresponds to the <code>att1</code> variable in the equation.
+ *
+ * Naturally undefined for directional lights.
+ */
+ float mAttenuationLinear;
+
+ /**
+ * Quadratic light attenuation factor.
+ *
+ * The intensity of the light source at a given distance
+ * <code>d</code> from the light's position is
+ * <code>1/( att0 + att1 * d + att2 * d * d )</code>. This member
+ * corresponds to the <code>att2</code> variable in the equation.
+ *
+ * Naturally undefined for directional lights.
+ */
+ float mAttenuationQuadratic;
+
+ /**
+ * Diffuse color of the light source
+ *
+ * The diffuse light color is multiplied with the diffuse material color
+ * to obtain the final color that contributes to the diffuse shading term.
+ */
+ aiColor3D mColorDiffuse;
+
+ /**
+ * Specular color of the light source
+ *
+ * The specular light color is multiplied with the specular material
+ * color to obtain the final color that contributes to the specular
+ * shading term.
+ */
+ aiColor3D mColorSpecular;
+
+ /**
+ * Ambient color of the light source
+ *
+ * The ambient light color is multiplied with the ambient material color
+ * to obtain the final color that contributes to the ambient shading term.
+ *
+ * Most renderers will ignore this value it, is just a remaining of the
+ * fixed-function pipeline that is still supported by quite many file
+ * formats.
+ */
+ aiColor3D mColorAmbient;
+
+ /**
+ * Inner angle of a spot light's light cone.
+ *
+ * The spot light has maximum influence on objects inside this angle. The
+ * angle is given in radians. It is 2PI for point lights and undefined
+ * for directional lights.
+ */
+ float mAngleInnerCone;
+
+ /**
+ * Outer angle of a spot light's light cone.
+ *
+ * The spot light does not affect objects outside this angle. The angle
+ * is given in radians. It is 2PI for point lights and undefined for
+ * directional lights. The outer angle must be greater than or equal to
+ * the inner angle.
+ *
+ * It is assumed that the application uses a smooth interpolation between
+ * the inner and the outer cone of the spot light.
+ */
+ float mAngleOuterCone;
+ }
+}
diff --git a/src/mesh/assimp-master/port/dAssimp/assimp/loader.d b/src/mesh/assimp-master/port/dAssimp/assimp/loader.d
new file mode 100644
index 0000000..279f0a7
--- /dev/null
+++ b/src/mesh/assimp-master/port/dAssimp/assimp/loader.d
@@ -0,0 +1,193 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (ASSIMP)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2020, ASSIMP Development Team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+ * Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+ * Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+ * Neither the name of the ASSIMP team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the ASSIMP Development Team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/**
+ * Provides facilities for dynamically loading the Assimp library.
+ *
+ * Currently requires Tango, but there is no reason why Phobos could not be
+ * supported too.
+ */
+module assimp.loader;
+
+import assimp.api;
+import tango.io.Stdout;
+import tango.sys.SharedLib;
+
+const uint ASSIMP_BINDINGS_MAJOR = 2;
+const uint ASSIMP_BINDINGS_MINOR = 0;
+
+/**
+ * Loader class for dynamically loading the Assimp library.
+ *
+ * The library is »reference-counted«, meaning that the library is not
+ * unloaded on a call to <code>unload()</code> if there are still other
+ * references to it.
+ */
+struct Assimp {
+public:
+ /**
+ * Loads the library if it is not already loaded and increases the
+ * reference counter.
+ *
+ * The library file (<code>libassimp.so</code> on POSIX systems,
+ * <code>Assimp32.dll</code> on Win32) is loaded via Tango's SharedLib
+ * class.
+ */
+ static void load() {
+ if ( m_sRefCount == 0 ) {
+ version ( Posix ) {
+ version ( OSX ) {
+ m_sLibrary = SharedLib.load( "libassimp.dylib" );
+ } else {
+ m_sLibrary = SharedLib.load( "libassimp.so" );
+ }
+ }
+ version ( Win32 ) {
+ m_sLibrary = SharedLib.load( "Assimp32.dll" );
+ }
+
+ // Versioning
+ mixin( bindCode( "aiGetLegalString" ) );
+ mixin( bindCode( "aiGetVersionMinor" ) );
+ mixin( bindCode( "aiGetVersionMajor" ) );
+ mixin( bindCode( "aiGetVersionRevision" ) );
+ mixin( bindCode( "aiGetCompileFlags" ) );
+
+ // Check for version mismatch between the external, dynamically loaded
+ // library and the version the bindings were created against.
+ uint libMajor = aiGetVersionMajor();
+ uint libMinor = aiGetVersionMinor();
+
+ if ( ( libMajor < ASSIMP_BINDINGS_MAJOR ) ||
+ ( libMinor < ASSIMP_BINDINGS_MINOR ) ) {
+ Stdout.format(
+ "WARNING: Assimp version too old (loaded library: {}.{}, " ~
+ "bindings: {}.{})!",
+ libMajor,
+ libMinor,
+ ASSIMP_BINDINGS_MAJOR,
+ ASSIMP_BINDINGS_MINOR
+ ).newline;
+ }
+
+ if ( libMajor > ASSIMP_BINDINGS_MAJOR ) {
+ Stdout.format(
+ "WARNING: Assimp version too new (loaded library: {}.{}, " ~
+ "bindings: {}.{})!",
+ libMajor,
+ libMinor,
+ ASSIMP_BINDINGS_MAJOR,
+ ASSIMP_BINDINGS_MINOR
+ ).newline;
+ }
+
+ // General API
+ mixin( bindCode( "aiImportFile" ) );
+ mixin( bindCode( "aiImportFileEx" ) );
+ mixin( bindCode( "aiImportFileFromMemory" ) );
+ mixin( bindCode( "aiApplyPostProcessing" ) );
+ mixin( bindCode( "aiGetPredefinedLogStream" ) );
+ mixin( bindCode( "aiAttachLogStream" ) );
+ mixin( bindCode( "aiEnableVerboseLogging" ) );
+ mixin( bindCode( "aiDetachLogStream" ) );
+ mixin( bindCode( "aiDetachAllLogStreams" ) );
+ mixin( bindCode( "aiReleaseImport" ) );
+ mixin( bindCode( "aiGetErrorString" ) );
+ mixin( bindCode( "aiIsExtensionSupported" ) );
+ mixin( bindCode( "aiGetExtensionList" ) );
+ mixin( bindCode( "aiGetMemoryRequirements" ) );
+ mixin( bindCode( "aiSetImportPropertyInteger" ) );
+ mixin( bindCode( "aiSetImportPropertyFloat" ) );
+ mixin( bindCode( "aiSetImportPropertyString" ) );
+
+ // Mathematical functions
+ mixin( bindCode( "aiCreateQuaternionFromMatrix" ) );
+ mixin( bindCode( "aiDecomposeMatrix" ) );
+ mixin( bindCode( "aiTransposeMatrix4" ) );
+ mixin( bindCode( "aiTransposeMatrix3" ) );
+ mixin( bindCode( "aiTransformVecByMatrix3" ) );
+ mixin( bindCode( "aiTransformVecByMatrix4" ) );
+ mixin( bindCode( "aiMultiplyMatrix4" ) );
+ mixin( bindCode( "aiMultiplyMatrix3" ) );
+ mixin( bindCode( "aiIdentityMatrix3" ) );
+ mixin( bindCode( "aiIdentityMatrix4" ) );
+
+ // Material system
+ mixin( bindCode( "aiGetMaterialProperty" ) );
+ mixin( bindCode( "aiGetMaterialFloatArray" ) );
+ mixin( bindCode( "aiGetMaterialIntegerArray" ) );
+ mixin( bindCode( "aiGetMaterialColor" ) );
+ mixin( bindCode( "aiGetMaterialString" ) );
+ mixin( bindCode( "aiGetMaterialTextureCount" ) );
+ mixin( bindCode( "aiGetMaterialTexture" ) );
+ }
+ ++m_sRefCount;
+ }
+
+ /**
+ * Decreases the reference counter and unloads the library if this was the
+ * last reference.
+ */
+ static void unload() {
+ assert( m_sRefCount > 0 );
+ --m_sRefCount;
+
+ if ( m_sRefCount == 0 ) {
+ m_sLibrary.unload();
+ }
+ }
+
+private:
+ /// Current number of references to the library.
+ static uint m_sRefCount;
+
+ /// Library handle.
+ static SharedLib m_sLibrary;
+}
+
+/**
+ * Private helper function which constructs the bind command for a symbol to
+ * keep the code DRY.
+ */
+private char[] bindCode( char[] symbol ) {
+ return symbol ~ " = cast( typeof( " ~ symbol ~
+ " ) )m_sLibrary.getSymbol( `" ~ symbol ~ "` );";
+}
diff --git a/src/mesh/assimp-master/port/dAssimp/assimp/material.d b/src/mesh/assimp-master/port/dAssimp/assimp/material.d
new file mode 100644
index 0000000..f0eae86
--- /dev/null
+++ b/src/mesh/assimp-master/port/dAssimp/assimp/material.d
@@ -0,0 +1,641 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (ASSIMP)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2020, ASSIMP Development Team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+ * Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+ * Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+ * Neither the name of the ASSIMP team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the ASSIMP Development Team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/**
+ * Contains the material system which stores the imported material information.
+ */
+module assimp.material;
+
+import assimp.math;
+import assimp.types;
+
+extern ( C ) {
+ /**
+ * Default material names for meshes without UV coordinates.
+ */
+ const char* AI_DEFAULT_MATERIAL_NAME = "aiDefaultMat";
+
+ /**
+ * Default material names for meshes with UV coordinates.
+ */
+ const char* AI_DEFAULT_TEXTURED_MATERIAL_NAME = "TexturedDefaultMaterial";
+
+ /**
+ * Defines how the Nth texture of a specific type is combined with the
+ * result of all previous layers.
+ *
+ * Example (left: key, right: value):
+ * <pre> DiffColor0 - gray
+ * DiffTextureOp0 - aiTextureOpMultiply
+ * DiffTexture0 - tex1.png
+ * DiffTextureOp0 - aiTextureOpAdd
+ * DiffTexture1 - tex2.png</pre>
+ * Written as equation, the final diffuse term for a specific pixel would be:
+ * <pre>diffFinal = DiffColor0 * sampleTex( DiffTexture0, UV0 ) +
+ * sampleTex( DiffTexture1, UV0 ) * diffContrib;</pre>
+ * where <code>diffContrib</code> is the intensity of the incoming light for
+ * that pixel.
+ */
+ enum aiTextureOp : uint {
+ /**
+ * <code>T = T1 * T2</code>
+ */
+ Multiply = 0x0,
+
+ /**
+ * <code>T = T1 + T2</code>
+ */
+ Add = 0x1,
+
+ /**
+ * <code>T = T1 - T2</code>
+ */
+ Subtract = 0x2,
+
+ /**
+ * <code>T = T1 / T2</code>
+ */
+ Divide = 0x3,
+
+ /**
+ * <code>T = ( T1 + T2 ) - ( T1 * T2 )</code>
+ */
+ SmoothAdd = 0x4,
+
+ /**
+ * <code>T = T1 + ( T2 - 0.5 )</code>
+ */
+ SignedAdd = 0x5
+ }
+
+ /**
+ * Defines how UV coordinates outside the <code>[0..1]</code> range are
+ * handled.
+ *
+ * Commonly referred to as 'wrapping mode'.
+ */
+ enum aiTextureMapMode : uint {
+ /**
+ * A texture coordinate <code>u | v</code> is translated to
+ * <code>(u%1) | (v%1)</code>.
+ */
+ Wrap = 0x0,
+
+ /**
+ * Texture coordinates are clamped to the nearest valid value.
+ */
+ Clamp = 0x1,
+
+ /**
+ * If the texture coordinates for a pixel are outside
+ * <code>[0..1]</code>, the texture is not applied to that pixel.
+ */
+ Decal = 0x3,
+
+ /**
+ * A texture coordinate <code>u | v</code> becomes
+ * <code>(u%1) | (v%1)</code> if <code>(u-(u%1))%2</code> is
+ * zero and <code>(1-(u%1)) | (1-(v%1))</code> otherwise.
+ */
+ Mirror = 0x2
+ }
+
+ /**
+ * Defines how the mapping coords for a texture are generated.
+ *
+ * Real-time applications typically require full UV coordinates, so the use of
+ * the <code>aiProcess.GenUVCoords</code> step is highly recommended. It
+ * generates proper UV channels for non-UV mapped objects, as long as an
+ * accurate description how the mapping should look like (e.g spherical) is
+ * given. See the <code>AI_MATKEY_MAPPING</code> property for more details.
+ */
+ enum aiTextureMapping : uint {
+ /**
+ * The mapping coordinates are taken from an UV channel.
+ *
+ * The <code>AI_MATKEY_UVSRC</code> key specifies from which (remember,
+ * meshes can have more than one UV channel).
+ */
+ UV = 0x0,
+
+ /**
+ * Spherical mapping.
+ */
+ SPHERE = 0x1,
+
+ /**
+ * Cylindrical mapping.
+ */
+ CYLINDER = 0x2,
+
+ /**
+ * Cubic mapping.
+ */
+ BOX = 0x3,
+
+ /**
+ * Planar mapping.
+ */
+ PLANE = 0x4,
+
+ /**
+ * Undefined mapping.
+ */
+ OTHER = 0x5
+ }
+
+ /**
+ * Defines the purpose of a texture
+ *
+ * This is a very difficult topic. Different 3D packages support different
+ * kinds of textures. For very common texture types, such as bumpmaps, the
+ * rendering results depend on implementation details in the rendering
+ * pipelines of these applications. Assimp loads all texture references from
+ * the model file and tries to determine which of the predefined texture
+ * types below is the best choice to match the original use of the texture
+ * as closely as possible.
+ *
+ * In content pipelines you'll usually define how textures have to be
+ * handled, and the artists working on models have to conform to this
+ * specification, regardless which 3D tool they're using.
+ */
+ enum aiTextureType : uint {
+ /**
+ * No texture, but the value to be used for
+ * <code>aiMaterialProperty.mSemantic</code> for all material properties
+ * <em>not</em> related to textures.
+ */
+ NONE = 0x0,
+
+ /**
+ * The texture is combined with the result of the diffuse lighting
+ * equation.
+ */
+ DIFFUSE = 0x1,
+
+ /**
+ * The texture is combined with the result of the specular lighting
+ * equation.
+ */
+ SPECULAR = 0x2,
+
+ /**
+ * The texture is combined with the result of the ambient lighting
+ * equation.
+ */
+ AMBIENT = 0x3,
+
+ /**
+ * The texture is added to the result of the lighting calculation. It
+ * isn't influenced by incoming light.
+ */
+ EMISSIVE = 0x4,
+
+ /**
+ * The texture is a height map.
+ *
+ * By convention, higher grey-scale values stand for higher elevations
+ * from the base height.
+ */
+ HEIGHT = 0x5,
+
+ /**
+ * The texture is a (tangent space) normal-map.
+ *
+ * Again, there are several conventions for tangent-space normal maps.
+ * Assimp does (intentionally) not differenciate here.
+ */
+ NORMALS = 0x6,
+
+ /**
+ * The texture defines the glossiness of the material.
+ *
+ * The glossiness is in fact the exponent of the specular (phong)
+ * lighting equation. Usually there is a conversion function defined to
+ * map the linear color values in the texture to a suitable exponent.
+ */
+ SHININESS = 0x7,
+
+ /**
+ * The texture defines per-pixel opacity.
+ *
+ * Usually white means opaque and black means transparent.
+ */
+ OPACITY = 0x8,
+
+ /**
+ * Displacement texture.
+ *
+ * The exact purpose and format is application-dependent. Higher color
+ * values stand for higher vertex displacements.
+ */
+ DISPLACEMENT = 0x9,
+
+ /**
+ * Lightmap or ambient occlusion texture.
+ *
+ * Both lightmaps and dedicated ambient occlusion maps are covered by
+ * this material property. The texture contains a scaling value for the
+ * final color value of a pixel. Its intensity is not affected by
+ * incoming light.
+ */
+ LIGHTMAP = 0xA,
+
+ /**
+ * Reflection texture.
+ *
+ * Contains the color of a perfect mirror reflection. Rarely used, almost
+ * never for real-time applications.
+ */
+ REFLECTION = 0xB,
+
+ /**
+ * Unknown texture.
+ *
+ * A texture reference that does not match any of the definitions above is
+ * considered to be 'unknown'. It is still imported, but is excluded from
+ * any further postprocessing.
+ */
+ UNKNOWN = 0xC
+ }
+
+ /**
+ * Defines all shading models supported by the library
+ *
+ * The list of shading modes has been taken from Blender. See Blender
+ * documentation for more information. The API does not distinguish between
+ * "specular" and "diffuse" shaders (thus the specular term for diffuse
+ * shading models like Oren-Nayar remains undefined).
+ *
+ * Again, this value is just a hint. Assimp tries to select the shader whose
+ * most common implementation matches the original rendering results of the
+ * 3D modeller which wrote a particular model as closely as possible.
+ */
+ enum aiShadingMode : uint {
+ /**
+ * Flat shading.
+ *
+ * Shading is done on per-face base diffuse only. Also known as
+ * »faceted shading«.
+ */
+ Flat = 0x1,
+
+ /**
+ * Simple Gouraud shading.
+ */
+ Gouraud = 0x2,
+
+ /**
+ * Phong-Shading.
+ */
+ Phong = 0x3,
+
+ /**
+ * Phong-Blinn-Shading.
+ */
+ Blinn = 0x4,
+
+ /**
+ * Per-pixel toon shading.
+ *
+ * Often referred to as »comic shading«.
+ */
+ Toon = 0x5,
+
+ /**
+ * Per-pixel Oren-Nayar shading.
+ *
+ * Extension to standard Lambertian shading, taking the roughness of the
+ * material into account.
+ */
+ OrenNayar = 0x6,
+
+ /**
+ * Per-pixel Minnaert shading.
+ *
+ * Extension to standard Lambertian shading, taking the "darkness" of the
+ * material into account.
+ */
+ Minnaert = 0x7,
+
+ /**
+ * Per-pixel Cook-Torrance shading.
+ *
+ * Special shader for metallic surfaces.
+ */
+ CookTorrance = 0x8,
+
+ /**
+ * No shading at all.
+ *
+ * Constant light influence of 1.
+ */
+ NoShading = 0x9,
+
+ /**
+ * Fresnel shading.
+ */
+ Fresnel = 0xa
+ }
+
+ /**
+ * Defines some mixed flags for a particular texture.
+ *
+ * Usually you'll instruct your cg artists how textures have to look like
+ * and how they will be processed in your application. However, if you use
+ * Assimp for completely generic loading purposes you might also need to
+ * process these flags in order to display as many 'unknown' 3D models as
+ * possible correctly.
+ *
+ * This corresponds to the <code>AI_MATKEY_TEXFLAGS</code> property.
+ */
+ enum aiTextureFlags : uint {
+ /**
+ * The texture's color values have to be inverted (i.e. <code>1-n</code>
+ * component-wise).
+ */
+ Invert = 0x1,
+
+ /**
+ * Explicit request to the application to process the alpha channel of the
+ * texture.
+ *
+ * Mutually exclusive with <code>IgnoreAlpha</code>. These flags are
+ * set if the library can say for sure that the alpha channel is used/is
+ * not used. If the model format does not define this, it is left to the
+ * application to decide whether the texture alpha channel – if any – is
+ * evaluated or not.
+ */
+ UseAlpha = 0x2,
+
+ /**
+ * Explicit request to the application to ignore the alpha channel of the
+ * texture.
+ *
+ * Mutually exclusive with <code>UseAlpha</code>.
+ */
+ IgnoreAlpha = 0x4
+ }
+
+
+ /**
+ * Defines alpha-blend flags.
+ *
+ * If you're familiar with OpenGL or D3D, these flags aren't new to you.
+ * They define how the final color value of a pixel is computed, based on
+ * the previous color at that pixel and the new color value from the
+ * material.
+ *
+ * The basic blending formula is
+ * <code>SourceColor * SourceBlend + DestColor * DestBlend</code>,
+ * where <code>DestColor</code> is the previous color in the framebuffer at
+ * this position and <code>SourceColor</code> is the material color before
+ * the transparency calculation.
+ *
+ * This corresponds to the <code>AI_MATKEY_BLEND_FUNC</code> property.
+ */
+ enum aiBlendMode :uint {
+ /**
+ * Formula:
+ * <code>SourceColor * SourceAlpha + DestColor * (1 - SourceAlpha)</code>
+ */
+ Default = 0x0,
+
+ /**
+ * Additive blending.
+ *
+ * Formula: <code>SourceColor*1 + DestColor*1</code>
+ */
+ Additive = 0x1
+ }
+
+ /**
+ * Defines how an UV channel is transformed.
+ *
+ * This is just a helper structure for the <code>AI_MATKEY_UVTRANSFORM</code>
+ * key. See its documentation for more details.
+ */
+ struct aiUVTransform {
+ align ( 1 ) :
+ /**
+ * Translation on the u and v axes.
+ *
+ * The default value is (0|0).
+ */
+ aiVector2D mTranslation;
+
+ /**
+ * Scaling on the u and v axes.
+ *
+ * The default value is (1|1).
+ */
+ aiVector2D mScaling;
+
+ /**
+ * Rotation - in counter-clockwise direction.
+ *
+ * The rotation angle is specified in radians. The rotation center is
+ * 0.5|0.5. The default value is 0.
+ */
+ float mRotation;
+ }
+
+ /**
+ * A very primitive RTTI system to store the data type of a material
+ * property.
+ */
+ enum aiPropertyTypeInfo : uint {
+ /**
+ * Array of single-precision (32 bit) floats.
+ *
+ * It is possible to use <code>aiGetMaterialInteger[Array]()</code> to
+ * query properties stored in floating-point format. The material system
+ * performs the type conversion automatically.
+ */
+ Float = 0x1,
+
+ /**
+ * aiString property.
+ *
+ * Arrays of strings aren't possible, <code>aiGetMaterialString()</code>
+ * must be used to query a string property.
+ */
+ String = 0x3,
+
+ /**
+ * Array of (32 bit) integers.
+ *
+ * It is possible to use <code>aiGetMaterialFloat[Array]()</code> to
+ * query properties stored in integer format. The material system
+ * performs the type conversion automatically.
+ */
+ Integer = 0x4,
+
+ /**
+ * Simple binary buffer, content undefined. Not convertible to anything.
+ */
+ Buffer = 0x5
+ }
+
+ /**
+ * Data structure for a single material property.
+ *
+ * As an user, you'll probably never need to deal with this data structure.
+ * Just use the provided <code>aiGetMaterialXXX()</code> functions to query
+ * material properties easily. Processing them manually is faster, but it is
+ * not the recommended way. It isn't worth the effort.
+ *
+ * Material property names follow a simple scheme:
+ *
+ * <code>$[name]</code>: A public property, there must be a corresponding
+ * AI_MATKEY_XXX constant.
+ *
+ * <code>?[name]</code>: Also public, but ignored by the
+ * <code>aiProcess.RemoveRedundantMaterials</code> post-processing step.
+ *
+ * <code>~[name]</code>: A temporary property for internal use.
+ */
+ struct aiMaterialProperty {
+ /**
+ * Specifies the name of the property (key).
+ *
+ * Keys are generally case insensitive.
+ */
+ aiString mKey;
+
+ /**
+ * For texture properties, this specifies the exact usage semantic.
+ *
+ * For non-texture properties, this member is always 0 (or rather
+ * <code>aiTextureType.NONE</code>).
+ */
+ uint mSemantic;
+
+ /**
+ * For texture properties, this specifies the index of the texture.
+ *
+ * For non-texture properties, this member is always 0.
+ */
+ uint mIndex;
+
+ /**
+ * Size of the buffer <code>mData</code> is pointing to (in bytes).
+ *
+ * This value may not be 0.
+ */
+ uint mDataLength;
+
+ /**
+ * Type information for the property.
+ *
+ * Defines the data layout inside the data buffer. This is used by the
+ * library internally to perform debug checks and to utilize proper type
+ * conversions.
+ */
+ aiPropertyTypeInfo mType;
+
+ /**
+ * Binary buffer to hold the property's value.
+ *
+ * The size of the buffer is always <code>mDataLength</code>.
+ */
+ char* mData;
+ }
+
+ /**
+ * Data structure for a material
+ *
+ * Material data is stored using a key-value structure. A single key-value
+ * pair is called a <em>material property</em>. The properties can be
+ * queried using the <code>aiMaterialGetXXX</code> family of functions. The
+ * library defines a set of standard keys (AI_MATKEY_XXX).
+ */
+ struct aiMaterial {
+ /**
+ * List of all material properties loaded.
+ */
+ aiMaterialProperty** mProperties;
+
+ /**
+ * Number of properties loaded.
+ */
+ uint mNumProperties;
+ uint mNumAllocated; /// ditto
+ }
+
+ /**
+ * Standard material property keys. Always pass 0 for texture type and index
+ * when querying these keys.
+ */
+ const char* AI_MATKEY_NAME = "?mat.name";
+ const char* AI_MATKEY_TWOSIDED = "$mat.twosided"; /// ditto
+ const char* AI_MATKEY_SHADING_MODEL = "$mat.shadingm"; /// ditto
+ const char* AI_MATKEY_ENABLE_WIREFRAME = "$mat.wireframe"; /// ditto
+ const char* AI_MATKEY_BLEND_FUNC = "$mat.blend"; /// ditto
+ const char* AI_MATKEY_OPACITY = "$mat.opacity"; /// ditto
+ const char* AI_MATKEY_BUMPSCALING = "$mat.bumpscaling"; /// ditto
+ const char* AI_MATKEY_SHININESS = "$mat.shininess"; /// ditto
+ const char* AI_MATKEY_REFLECTIVITY = "$mat.reflectivity"; /// ditto
+ const char* AI_MATKEY_SHININESS_STRENGTH = "$mat.shinpercent"; /// ditto
+ const char* AI_MATKEY_REFRACTI = "$mat.refracti"; /// ditto
+ const char* AI_MATKEY_COLOR_DIFFUSE = "$clr.diffuse"; /// ditto
+ const char* AI_MATKEY_COLOR_AMBIENT = "$clr.ambient"; /// ditto
+ const char* AI_MATKEY_COLOR_SPECULAR = "$clr.specular"; /// ditto
+ const char* AI_MATKEY_COLOR_EMISSIVE = "$clr.emissive"; /// ditto
+ const char* AI_MATKEY_COLOR_TRANSPARENT = "$clr.transparent"; /// ditto
+ const char* AI_MATKEY_COLOR_REFLECTIVE = "$clr.reflective"; /// ditto
+ const char* AI_MATKEY_GLOBAL_BACKGROUND_IMAGE = "?bg.global"; /// ditto
+
+ /**
+ * Texture material property keys. Do not forget to specify texture type and
+ * index for these keys.
+ */
+ const char* AI_MATKEY_TEXTURE = "$tex.file";
+ const char* AI_MATKEY_UVWSRC = "$tex.uvwsrc"; /// ditto
+ const char* AI_MATKEY_TEXOP = "$tex.op"; /// ditto
+ const char* AI_MATKEY_MAPPING = "$tex.mapping"; /// ditto
+ const char* AI_MATKEY_TEXBLEND = "$tex.blend"; /// ditto
+ const char* AI_MATKEY_MAPPINGMODE_U = "$tex.mapmodeu"; /// ditto
+ const char* AI_MATKEY_MAPPINGMODE_V = "$tex.mapmodev"; /// ditto
+ const char* AI_MATKEY_TEXMAP_AXIS = "$tex.mapaxis"; /// ditto
+ const char* AI_MATKEY_UVTRANSFORM = "$tex.uvtrafo"; /// ditto
+ const char* AI_MATKEY_TEXFLAGS = "$tex.flags"; /// ditto
+}
diff --git a/src/mesh/assimp-master/port/dAssimp/assimp/math.d b/src/mesh/assimp-master/port/dAssimp/assimp/math.d
new file mode 100644
index 0000000..057bbd5
--- /dev/null
+++ b/src/mesh/assimp-master/port/dAssimp/assimp/math.d
@@ -0,0 +1,155 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (ASSIMP)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2020, ASSIMP Development Team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+ * Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+ * Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+ * Neither the name of the ASSIMP team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the ASSIMP Development Team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/**
+ * Mathematical structures in which the imported data is stored.
+ */
+module assimp.math;
+
+extern( C ) {
+ /**
+ * Represents a two-dimensional vector.
+ */
+ struct aiVector2D {
+ align ( 1 ):
+ float x, y;
+ }
+
+ /**
+ * Represents a three-dimensional vector.
+ */
+ struct aiVector3D {
+ align ( 1 ):
+ float x, y, z;
+ }
+
+ /**
+ * Represents a quaternion.
+ */
+ struct aiQuaternion {
+ float w, x, y, z;
+ }
+
+ /**
+ * Represents a row-major 3x3 matrix
+ *
+ * There is much confusion about matrix layouts (column vs. row order). This
+ * is <em>always</em> a row-major matrix, even when using the
+ * <code>ConvertToLeftHanded</code> post processing step.
+ */
+ struct aiMatrix3x3 {
+ float a1, a2, a3;
+ float b1, b2, b3;
+ float c1, c2, c3;
+ }
+
+ /**
+ * Represents a row-major 3x3 matrix
+ *
+ * There is much confusion about matrix layouts (column vs. row order). This
+ * is <em>always</em> a row-major matrix, even when using the
+ * <code>ConvertToLeftHanded</code> post processing step.
+ */
+ struct aiMatrix4x4 {
+ align ( 1 ):
+ float a1, a2, a3, a4;
+ float b1, b2, b3, b4;
+ float c1, c2, c3, c4;
+ float d1, d2, d3, d4;
+ }
+
+ /**
+ * Represents a plane in a three-dimensional, euclidean space
+ */
+ struct aiPlane {
+ align ( 1 ):
+ /**
+ * Coefficients of the plane equation (<code>ax + by + cz = d</code>).
+ */
+ float a;
+ float b; /// ditto
+ float c; /// ditto
+ float d; /// ditto
+ }
+
+ /**
+ * Represents a ray.
+ */
+ struct aiRay {
+ align ( 1 ):
+ /**
+ * Origin of the ray.
+ */
+ aiVector3D pos;
+
+ /**
+ * Direction of the ray.
+ */
+ aiVector3D dir;
+ }
+
+ /**
+ * Represents a color in RGB space.
+ */
+ struct aiColor3D {
+ align ( 1 ):
+ /**
+ * Red, green and blue values.
+ */
+ float r;
+ float g; /// ditto
+ float b; /// ditto
+ }
+
+ /**
+ * Represents a color in RGB space including an alpha component.
+ */
+ struct aiColor4D {
+ align ( 1 ):
+ /**
+ * Red, green, blue and alpha values.
+ */
+ float r;
+ float g; /// ditto
+ float b; /// ditto
+ float a; /// ditto
+ }
+}
diff --git a/src/mesh/assimp-master/port/dAssimp/assimp/mesh.d b/src/mesh/assimp-master/port/dAssimp/assimp/mesh.d
new file mode 100644
index 0000000..48162b7
--- /dev/null
+++ b/src/mesh/assimp-master/port/dAssimp/assimp/mesh.d
@@ -0,0 +1,465 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (ASSIMP)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2020, ASSIMP Development Team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+ * Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+ * Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+ * Neither the name of the ASSIMP team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the ASSIMP Development Team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/**
+ * Contains the data structures in which the imported geometry is returned by
+ * Assimp.
+ */
+module assimp.mesh;
+
+import assimp.math;
+import assimp.types;
+
+extern ( C ) {
+ /*
+ * These limits are required to match the settings Assimp was compiled
+ * against. Therefore, do not redefine them unless you build the library
+ * from source using the same definitions.
+ */
+
+ /**
+ * Maximum number of indices per face (polygon).
+ */
+ const AI_MAX_FACE_INDICES = 0x7fff;
+
+ /**
+ * Maximum number of indices per face (polygon).
+ */
+ const AI_MAX_BONE_WEIGHTS = 0x7fffffff;
+
+ /**
+ * Maximum number of vertices per mesh.
+ */
+ const AI_MAX_VERTICES = 0x7fffffff;
+
+ /**
+ * Maximum number of faces per mesh.
+ */
+ const AI_MAX_FACES = 0x7fffffff;
+
+ /**
+ * Supported number of vertex color sets per mesh.
+ */
+ const AI_MAX_NUMBER_OF_COLOR_SETS = 0x4;
+
+ /**
+ * Supported number of texture coord sets (UV(W) channels) per mesh.
+ */
+ const AI_MAX_NUMBER_OF_TEXTURECOORDS = 0x4;
+
+
+ /**
+ * A single face in a mesh, referring to multiple vertices.
+ *
+ * If <code>mNumIndices</code> is 3, we call the face <em>triangle</em>, for
+ * for <code>mNumIndices > 3</code> it's called <em>polygon</em>.
+ *
+ * <code>aiMesh.mPrimitiveTypes</code> can be queried to quickly examine
+ * which types of primitive are actually present in a mesh. The
+ * <code>aiProcess.SortByPType</code> flag post-processing step splits
+ * meshes containing different primitive types (e.g. lines and triangles) in
+ * several "clean" submeshes.
+ *
+ * Furthermore, there is a configuration option
+ * (<code>AI_CONFIG_PP_SBP_REMOVE</code>) to force <code>SortByPType</code>
+ * to completely remove specific kinds of primitives from the imported scene.
+ * In many cases you'll probably want to set this setting to
+ * <code>aiPrimitiveType.LINE | aiPrimitiveType.POINT</code>. Together with
+ * the <code>aiProcess.Triangulate</code> flag you can then be sure that
+ * <code>mNumIndices</code> is always 3.
+ */
+ struct aiFace {
+ /**
+ * Number of indices defining this face.
+ *
+ * The maximum value for this member is <code>AI_MAX_FACE_INDICES</code>.
+ */
+ uint mNumIndices;
+
+ /**
+ * Array of the indices defining the face.
+ *
+ * The size is given in <code>mNumIndices</code>.
+ */
+ uint* mIndices;
+ }
+
+ /**
+ * A single influence of a bone on a vertex.
+ */
+ struct aiVertexWeight {
+ /**
+ * Index of the vertex which is influenced by the bone.
+ */
+ uint mVertexId;
+
+ /**
+ * The strength of the influence in the range <code>[0..1]</code>.
+ *
+ * The influence from all bones at one vertex sums up to 1.
+ */
+ float mWeight;
+ }
+
+ /**
+ * A single bone of a mesh.
+ *
+ * A bone has a name by which it can be found in the frame hierarchy and by
+ * which it can be addressed by animations. In addition it has a number of
+ * influences on vertices.
+ */
+ struct aiBone {
+ /**
+ * The name of the bone.
+ */
+ aiString mName;
+
+ /**
+ * The number of vertices affected by this bone.
+ *
+ * The maximum value for this member is <code>AI_MAX_BONE_WEIGHTS</code>.
+ */
+ uint mNumWeights;
+
+ /**
+ * The vertices affected by this bone.
+ *
+ * This array is <code>mNumWeights</code> entries in size.
+ */
+ aiVertexWeight* mWeights;
+
+ /**
+ * Matrix that transforms from mesh space to bone space (in the bind
+ * pose).
+ */
+ aiMatrix4x4 mOffsetMatrix;
+ }
+
+ /**
+ * Enumerates the types of geometric primitives supported by Assimp.
+ *
+ * See: <code>aiFace</code>, <code>aiProcess.SortByPType</code>,
+ * <code>aiProcess.Triangulate</code>,
+ * <code>AI_CONFIG_PP_SBP_REMOVE</code>.
+ */
+ enum aiPrimitiveType : uint {
+ /** A point primitive.
+ *
+ * This is just a single vertex in the virtual world,
+ * <code>aiFace</code> contains just one index for such a primitive.
+ */
+ POINT = 0x1,
+
+ /** A line primitive.
+ *
+ * This is a line defined through a start and an end position.
+ * <code>aiFace</code> contains exactly two indices for such a primitive.
+ */
+ LINE = 0x2,
+
+ /** A triangular primitive.
+ *
+ * A triangle consists of three indices.
+ */
+ TRIANGLE = 0x4,
+
+ /** A higher-level polygon with more than 3 edges.
+ *
+ * A triangle is a polygon, but in this context, polygon means
+ * "all polygons that are not triangles". The <code>Triangulate</code>
+ * post processing step is provided for your convenience, it splits all
+ * polygons in triangles (which are much easier to handle).
+ */
+ POLYGON = 0x8
+ }
+
+ // Note: The AI_PRIMITIVE_TYPE_FOR_N_INDICES(n) macro from the C headers is
+ // missing since there is probably not much use for it when just reading
+ // scene files.
+
+ /**
+ * NOT CURRENTLY IN USE. An AnimMesh is an attachment to an #aiMesh stores
+ * per-vertex animations for a particular frame.
+ *
+ * You may think of an <code>aiAnimMesh</code> as a `patch` for the host
+ * mesh, which replaces only certain vertex data streams at a particular
+ * time.
+ *
+ * Each mesh stores n attached attached meshes (<code>aiMesh.mAnimMeshes</code>).
+ * The actual relationship between the time line and anim meshes is
+ * established by #aiMeshAnim, which references singular mesh attachments
+ * by their ID and binds them to a time offset.
+ */
+ struct aiAnimMesh {
+ /**
+ * Replacement for aiMesh.mVertices.
+ *
+ * If this array is non-null, it *must* contain mNumVertices entries.
+ * The corresponding array in the host mesh must be non-null as well -
+ * animation meshes may neither add or nor remove vertex components (if
+ * a replacement array is NULL and the corresponding source array is
+ * not, the source data is taken instead).
+ */
+ aiVector3D* mVertices;
+
+ /// Replacement for <code>aiMesh.mNormals</code>.
+ aiVector3D* mNormals;
+
+ /// Replacement for <code>aiMesh.mTangents</code>.
+ aiVector3D* mTangents;
+
+ /// Replacement for <code>aiMesh.mBitangents</code>.
+ aiVector3D* mBitangents;
+
+ /// Replacement for <code>aiMesh.mColors</code>.
+ aiColor4D* mColors[ AI_MAX_NUMBER_OF_COLOR_SETS ];
+
+ /// Replacement for <code>aiMesh.mTextureCoords</code>.
+ aiVector3D* mTextureCoords[ AI_MAX_NUMBER_OF_TEXTURECOORDS ];
+
+ /**
+ * The number of vertices in the aiAnimMesh, and thus the length of all
+ * the member arrays.
+ *
+ * This has always the same value as the mNumVertices property in the
+ * corresponding aiMesh. It is duplicated here merely to make the length
+ * of the member arrays accessible even if the aiMesh is not known, e.g.
+ * from language bindings.
+ */
+ uint mNumVertices;
+ }
+
+ /**
+ * A mesh represents a geometry or model with a single material.
+ *
+ * It usually consists of a number of vertices and a series
+ * primitives/faces referencing the vertices. In addition there might be a
+ * series of bones, each of them addressing a number of vertices with a
+ * certain weight. Vertex data is presented in channels with each channel
+ * containing a single per-vertex information such as a set of texture
+ * coords or a normal vector. If a data pointer is non-null, the
+ * corresponding data stream is present.
+ *
+ * A mesh uses only a single material which is referenced by a material ID.
+ *
+ * Note: The <code>mPositions</code> member is usually not optional.
+ * However, vertex positions <em>could</em> be missing if the
+ * <code>AI_SCENE_FLAGS_INCOMPLETE</code> flag is set in
+ * <code>aiScene.mFlags</code>.
+ */
+ struct aiMesh {
+ /**
+ * Bitwise combination of <code>aiPrimitiveType</code> members.
+ *
+ * This specifies which types of primitives are present in the mesh.
+ * The <code>SortByPrimitiveType</code> post processing step can be used
+ * to make sure the output meshes consist of one primitive type each.
+ */
+ uint mPrimitiveTypes;
+
+ /**
+ * The number of vertices in this mesh.
+ *
+ * This is also the size of all of the per-vertex data arrays. The
+ * maximum value for this member is <code>AI_MAX_VERTICES</code>.
+ */
+ uint mNumVertices;
+
+ /**
+ * The number of primitives (triangles, polygons, lines) in this mesh.
+ *
+ * This is also the size of the <code>mFaces</code> array. The maximum
+ * value for this member is <code>AI_MAX_FACES</code>.
+ */
+ uint mNumFaces;
+
+ /**
+ * Vertex positions.
+ *
+ * This array is always present in a mesh. The array is
+ * <code>mNumVertices</code> in size.
+ */
+ aiVector3D* mVertices;
+
+ /**
+ * Vertex normals.
+ *
+ * The array contains normalized vectors, null if not present.
+ * The array is <code>mNumVertices</code> in size.
+ *
+ * Normals are undefined for point and line primitives. A mesh
+ * consisting of points and lines only may not have normal vectors.
+ * Meshes with mixed primitive types (i.e. lines and triangles) may have
+ * normals, but the normals for vertices that are only referenced by
+ * point or line primitives are undefined and set to <code>QNAN</code>.
+ *
+ * Note: Normal vectors computed by Assimp are always unit-length.
+ * However, this needn't apply for normals that have been taken
+ * directly from the model file.
+ */
+ aiVector3D* mNormals;
+
+ /**
+ * Vertex tangents.
+ *
+ * The tangent of a vertex points in the direction of the positive x
+ * texture axis. The array contains normalized vectors, null if
+ * not present. The array is <code>mNumVertices</code> in size.
+ *
+ * A mesh consisting of points and lines only may not have normal
+ * vectors. Meshes with mixed primitive types (i.e. lines and triangles)
+ * may have normals, but the normals for vertices that are only
+ * referenced by point or line primitives are undefined and set to
+ * <code>QNAN</code>.
+ *
+ * Note: If the mesh contains tangents, it automatically also contains
+ * bitangents (the bitangent is just the cross product of tangent and
+ * normal vectors).
+ */
+ aiVector3D* mTangents;
+
+ /**
+ * Vertex bitangents.
+ *
+ * The bitangent of a vertex points in the direction of the positive Y
+ * texture axis. The array contains normalized vectors, null if not
+ * present. The array is <code>mNumVertices</code> in size.
+ *
+ * Note: If the mesh contains tangents, it automatically also contains
+ * bitangents.
+ */
+ aiVector3D* mBitangents;
+
+ /**
+ * Vertex color sets.
+ *
+ * A mesh may contain 0 to <code>AI_MAX_NUMBER_OF_COLOR_SETS</code>
+ * vertex colors per vertex. null if not present.
+ *
+ * Each array is <code>mNumVertices</code> in size if present.
+ */
+ aiColor4D* mColors[ AI_MAX_NUMBER_OF_COLOR_SETS ];
+
+ /**
+ * Vertex texture coords, also known as UV channels.
+ * A mesh may contain 0 to <code>AI_MAX_NUMBER_OF_TEXTURECOORDS</code>
+ * per vertex. null if not present.
+ *
+ * Each array is <code>mNumVertices</code> in size.
+ */
+ aiVector3D* mTextureCoords[ AI_MAX_NUMBER_OF_TEXTURECOORDS ];
+
+ /**
+ * Specifies the number of components for a given UV channel.
+ *
+ * Up to three channels are supported (UVW, for accessing volume or cube
+ * maps). If the value is 2 for a given channel <code>n</code>, the
+ * component <code>p.z</code> of <code>mTextureCoords[n][p]</code> is set
+ * to 0. If the value is 1 for a given channel, <code>p.y</code> is set
+ * to 0, too. If this value is 0, 2 should be assumed.
+ *
+ * Note: 4D coords are not supported.
+ */
+ uint mNumUVComponents[ AI_MAX_NUMBER_OF_TEXTURECOORDS ];
+
+ /**
+ * The faces the mesh is contstructed from.
+ *
+ * Each face refers to a number of vertices by their indices.
+ * This array is always present in a mesh, its size is given
+ * in <code>mNumFaces</code>. If the
+ * <code>AI_SCENE_FLAGS_NON_VERBOSE_FORMAT</code> is <em>not</em> set,
+ * each face references an unique set of vertices.
+ */
+ aiFace* mFaces;
+
+ /**
+ * The number of bones this mesh contains.
+ *
+ * Can be 0, in which case the <code>mBones</code> array is null.
+ */
+ uint mNumBones;
+
+ /**
+ * The bones of this mesh.
+ *
+ * A bone consists of a name by which it can be found in the frame
+ * hierarchy and a set of vertex weights.
+ */
+ aiBone** mBones;
+
+ /**
+ * The material used by this mesh.
+ *
+ * A mesh does use only a single material. If an imported model uses
+ * multiple materials, the import splits up the mesh. Use this value as
+ * index into the scene's material list.
+ */
+ uint mMaterialIndex;
+
+ /**
+ * Name of the mesh.
+ *
+ * Meshes can be named, but this is not a requirement and leaving this
+ * field empty is totally fine.
+ *
+ * There are mainly three uses for mesh names:
+ * - Some formats name nodes and meshes independently.
+ * - Importers tend to split meshes up to meet the one-material-per-mesh
+ * requirement. Assigning the same (dummy) name to each of the result
+ * meshes aids the caller at recovering the original mesh partitioning.
+ * - Vertex animations refer to meshes by their names.
+ */
+ aiString mName;
+
+ /// NOT CURRENTLY IN USE. The number of attachment meshes.
+ uint mNumAnimMeshes;
+
+ /**
+ * NOT CURRENTLY IN USE. Attachment meshes for this mesh, for vertex-
+ * based animation.
+ *
+ * Attachment meshes carry replacement data for some of the mesh's
+ * vertex components (usually positions, normals).
+ */
+ aiAnimMesh** mAnimMeshes;
+ }
+}
diff --git a/src/mesh/assimp-master/port/dAssimp/assimp/postprocess.d b/src/mesh/assimp-master/port/dAssimp/assimp/postprocess.d
new file mode 100644
index 0000000..343bb36
--- /dev/null
+++ b/src/mesh/assimp-master/port/dAssimp/assimp/postprocess.d
@@ -0,0 +1,597 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (ASSIMP)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2020, ASSIMP Development Team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+ * Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+ * Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+ * Neither the name of the ASSIMP team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the ASSIMP Development Team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/**
+ * Definitions for import post processing steps.
+ */
+module assimp.postprocess;
+
+extern ( C ) {
+ /**
+ * Defines the flags for all possible post processing steps.
+ *
+ * See: <code>aiImportFile</code>, <code>aiImportFileEx</code>
+ */
+ enum aiPostProcessSteps {
+ /**
+ * Calculates the tangents and bitangents for the imported meshes.
+ *
+ * Does nothing if a mesh does not have normals. You might want this post
+ * processing step to be executed if you plan to use tangent space
+ * calculations such as normal mapping applied to the meshes. There is a
+ * config setting, <code>AI_CONFIG_PP_CT_MAX_SMOOTHING_ANGLE</code>,
+ * which allows you to specify a maximum smoothing angle for the
+ * algorithm. However, usually you will want to use the default value.
+ */
+ CalcTangentSpace = 0x1,
+
+ /**
+ * Identifies and joins identical vertex data sets within all imported
+ * meshes.
+ *
+ * After this step is run each mesh does contain only unique vertices
+ * anymore, so a vertex is possibly used by multiple faces. You usually
+ * want to use this post processing step. If your application deals with
+ * indexed geometry, this step is compulsory or you will just waste
+ * rendering time. <em>If this flag is not specified</em>, no vertices
+ * are referenced by more than one face and <em>no index buffer is
+ * required</em> for rendering.
+ */
+ JoinIdenticalVertices = 0x2,
+
+ /**
+ * Converts all the imported data to a left-handed coordinate space.
+ *
+ * By default the data is returned in a right-handed coordinate space
+ * which for example OpenGL prefers. In this space, +X points to the
+ * right, +Z points towards the viewer and and +Y points upwards. In the
+ * DirectX coordinate space +X points to the right, +Y points upwards and
+ * +Z points away from the viewer.
+ *
+ * You will probably want to consider this flag if you use Direct3D for
+ * rendering. The <code>ConvertToLeftHanded</code> flag supersedes this
+ * setting and bundles all conversions typically required for D3D-based
+ * applications.
+ */
+ MakeLeftHanded = 0x4,
+
+ /**
+ * Triangulates all faces of all meshes.
+ *
+ * By default the imported mesh data might contain faces with more than 3
+ * indices. For rendering you'll usually want all faces to be triangles.
+ * This post processing step splits up all higher faces to triangles.
+ * Line and point primitives are <em>not</em> modified!.
+ *
+ * If you want »triangles only« with no other kinds of primitives,
+ * specify both <code>Triangulate</code> and <code>SortByPType</code> and
+ * ignore all point and line meshes when you process Assimp's output.
+ */
+ Triangulate = 0x8,
+
+ /**
+ * Removes some parts of the data structure (animations, materials, light
+ * sources, cameras, textures, vertex components).
+ *
+ * The components to be removed are specified in a separate configuration
+ * option, <code>AI_CONFIG_PP_RVC_FLAGS</code>. This is quite useful if
+ * you don't need all parts of the output structure. Especially vertex
+ * colors are rarely used today.
+ *
+ * Calling this step to remove unrequired stuff from the pipeline as
+ * early as possible results in an increased performance and a better
+ * optimized output data structure.
+ *
+ * This step is also useful if you want to force Assimp to recompute
+ * normals or tangents since the corresponding steps don't recompute them
+ * if they have already been loaded from the source asset.
+ *
+ * This flag is a poor one, mainly because its purpose is usually
+ * misunderstood. Consider the following case: a 3d model has been exported
+ * from a CAD app, it has per-face vertex colors. Because of the vertex
+ * colors (which are not even used by most apps),
+ * <code>JoinIdenticalVertices</code> cannot join vertices at the same
+ * position. By using this step, unneeded components are excluded as
+ * early as possible thus opening more room for internal optimzations.
+ */
+ RemoveComponent = 0x10,
+
+ /**
+ * Generates normals for all faces of all meshes.
+ *
+ * This is ignored if normals are already there at the time where this
+ * flag is evaluated. Model importers try to load them from the source
+ * file, so they are usually already there. Face normals are shared
+ * between all points of a single face, so a single point can have
+ * multiple normals, which, in other words, enforces the library to
+ * duplicate vertices in some cases. <code>JoinIdenticalVertices</code>
+ * is <em>useless</em> then.
+ *
+ * This flag may not be specified together with
+ * <code>GenSmoothNormals</code>.
+ */
+ GenNormals = 0x20,
+
+ /**
+ * Generates smooth normals for all vertices in the mesh.
+ *
+ * This is ignored if normals are already there at the time where this
+ * flag is evaluated. Model importers try to load them from the source file, so
+ * they are usually already there.
+ *
+ * There is a configuration option,
+ * <code>AI_CONFIG_PP_GSN_MAX_SMOOTHING_ANGLE</code> which allows you to
+ * specify an angle maximum for the normal smoothing algorithm. Normals
+ * exceeding this limit are not smoothed, resulting in a »hard« seam
+ * between two faces. Using a decent angle here (e.g. 80°) results in
+ * very good visual appearance.
+ */
+ GenSmoothNormals = 0x40,
+
+ /**
+ * Splits large meshes into smaller submeshes.
+ *
+ * This is quite useful for realtime rendering where the number of triangles
+ * which can be maximally processed in a single draw-call is usually limited
+ * by the video driver/hardware. The maximum vertex buffer is usually limited,
+ * too. Both requirements can be met with this step: you may specify both a
+ * triangle and vertex limit for a single mesh.
+ *
+ * The split limits can (and should!) be set through the
+ * <code>AI_CONFIG_PP_SLM_VERTEX_LIMIT</code> and
+ * <code>AI_CONFIG_PP_SLM_TRIANGLE_LIMIT</code> settings. The default
+ * values are <code>AI_SLM_DEFAULT_MAX_VERTICES</code> and
+ * <code>AI_SLM_DEFAULT_MAX_TRIANGLES</code>.
+ *
+ * Note that splitting is generally a time-consuming task, but not if
+ * there's nothing to split. The use of this step is recommended for most
+ * users.
+ */
+ SplitLargeMeshes = 0x80,
+
+ /**
+ * Removes the node graph and pre-transforms all vertices with the local
+ * transformation matrices of their nodes.
+ *
+ * The output scene does still contain nodes, however, there is only a
+ * root node with children, each one referencing only one mesh, each
+ * mesh referencing one material. For rendering, you can simply render
+ * all meshes in order, you don't need to pay attention to local
+ * transformations and the node hierarchy. Animations are removed during
+ * this step.
+ *
+ * This step is intended for applications that have no scenegraph.
+ *
+ * The step <em>can</em> cause some problems: if e.g. a mesh of the asset
+ * contains normals and another, using the same material index, does not,
+ * they will be brought together, but the first meshes's part of the
+ * normal list is zeroed. However, these artifacts are rare.
+ *
+ * Note: The <code>AI_CONFIG_PP_PTV_NORMALIZE</code> configuration
+ * property can be set to normalize the scene's spatial dimension
+ * to the -1...1 range.
+ */
+ PreTransformVertices = 0x100,
+
+ /**
+ * Limits the number of bones simultaneously affecting a single vertex to
+ * a maximum value.
+ *
+ * If any vertex is affected by more than that number of bones, the least
+ * important vertex weights are removed and the remaining vertex weights
+ * are renormalized so that the weights still sum up to 1.
+ *
+ * The default bone weight limit is 4 (<code>AI_LMW_MAX_WEIGHTS</code>),
+ * but you can use the <code>#AI_CONFIG_PP_LBW_MAX_WEIGHTS</code> setting
+ * to supply your own limit to the post processing step.
+ *
+ * If you intend to perform the skinning in hardware, this post processing
+ * step might be of interest for you.
+ */
+ LimitBoneWeights = 0x200,
+
+ /**
+ * Validates the imported scene data structure.
+ *
+ * This makes sure that all indices are valid, all animations and
+ * bones are linked correctly, all material references are correct, etc.
+ *
+ * It is recommended to capture Assimp's log output if you use this flag,
+ * so you can easily find ot what's actually wrong if a file fails the
+ * validation. The validator is quite rude and will find <em>all</em>
+ * inconsistencies in the data structure.
+ *
+ * Plugin developers are recommended to use it to debug their loaders.
+ *
+ * There are two types of validation failures:
+ * <ul>
+ * <li>Error: There's something wrong with the imported data. Further
+ * postprocessing is not possible and the data is not usable at all.
+ * The import fails, see <code>aiGetErrorString()</code> for the
+ * error message.</li>
+ * <li>Warning: There are some minor issues (e.g. 1000000 animation
+ * keyframes with the same time), but further postprocessing and use
+ * of the data structure is still safe. Warning details are written
+ * to the log file, <code>AI_SCENE_FLAGS_VALIDATION_WARNING</code> is
+ * set in <code>aiScene::mFlags</code></li>
+ * </ul>
+ *
+ * This post-processing step is not time-consuming. It's use is not
+ * compulsory, but recommended.
+ */
+ ValidateDataStructure = 0x400,
+
+ /**
+ * Reorders triangles for better vertex cache locality.
+ *
+ * The step tries to improve the ACMR (average post-transform vertex cache
+ * miss ratio) for all meshes. The implementation runs in O(n) and is
+ * roughly based on the 'tipsify' algorithm (see
+ * <tt>http://www.cs.princeton.edu/gfx/pubs/Sander_2007_%3ETR/tipsy.pdf</tt>).
+ *
+ * If you intend to render huge models in hardware, this step might
+ * be of interest for you. The <code>AI_CONFIG_PP_ICL_PTCACHE_SIZE</code>
+ * config setting can be used to fine-tune the cache optimization.
+ */
+ ImproveCacheLocality = 0x800,
+
+ /**
+ * Searches for redundant/unreferenced materials and removes them.
+ *
+ * This is especially useful in combination with the
+ * <code>PretransformVertices</code> and <code>OptimizeMeshes</code>
+ * flags. Both join small meshes with equal characteristics, but they
+ * can't do their work if two meshes have different materials. Because
+ * several material settings are always lost during Assimp's import
+ * filters, (and because many exporters don't check for redundant
+ * materials), huge models often have materials which are are defined
+ * several times with exactly the same settings.
+ *
+ * Several material settings not contributing to the final appearance of
+ * a surface are ignored in all comparisons; the material name is one of
+ * them. So, if you are passing additional information through the
+ * content pipeline (probably using »magic« material names), don't
+ * specify this flag. Alternatively take a look at the
+ * <code>AI_CONFIG_PP_RRM_EXCLUDE_LIST</code> setting.
+ */
+ RemoveRedundantMaterials = 0x1000,
+
+ /**
+ * This step tries to determine which meshes have normal vectors that are
+ * acing inwards.
+ *
+ * The algorithm is simple but effective: The bounding box of all
+ * vertices and their normals is compared against the volume of the
+ * bounding box of all vertices without their normals. This works well
+ * for most objects, problems might occur with planar surfaces. However,
+ * the step tries to filter such cases.
+ *
+ * The step inverts all in-facing normals. Generally it is recommended to
+ * enable this step, although the result is not always correct.
+ */
+ FixInfacingNormals = 0x2000,
+
+ /**
+ * This step splits meshes with more than one primitive type in
+ * homogeneous submeshes.
+ *
+ * The step is executed after the triangulation step. After the step
+ * returns, just one bit is set in <code>aiMesh.mPrimitiveTypes</code>.
+ * This is especially useful for real-time rendering where point and line
+ * primitives are often ignored or rendered separately.
+ *
+ * You can use the <code>AI_CONFIG_PP_SBP_REMOVE</code> option to
+ * specify which primitive types you need. This can be used to easily
+ * exclude lines and points, which are rarely used, from the import.
+ */
+ SortByPType = 0x8000,
+
+ /**
+ * This step searches all meshes for degenerated primitives and converts
+ * them to proper lines or points.
+ *
+ * A face is »degenerated« if one or more of its points are identical.
+ * To have the degenerated stuff not only detected and collapsed but also
+ * removed, try one of the following procedures:
+ *
+ * <b>1.</b> (if you support lines and points for rendering but don't
+ * want the degenerates)
+ * <ul>
+ * <li>Specify the <code>FindDegenerates</code> flag.</li>
+ * <li>Set the <code>AI_CONFIG_PP_FD_REMOVE</code> option to 1. This will
+ * cause the step to remove degenerated triangles from the import
+ * as soon as they're detected. They won't pass any further
+ * pipeline steps.</li>
+ * </ul>
+ *
+ * <b>2.</b>(if you don't support lines and points at all ...)
+ * <ul>
+ * <li>Specify the <code>FindDegenerates</code> flag.</li>
+ * <li>Specify the <code>SortByPType</code> flag. This moves line and
+ * point primitives to separate meshes.</li>
+ * <li>Set the <code>AI_CONFIG_PP_SBP_REMOVE</codet> option to
+ * <code>aiPrimitiveType_POINTS | aiPrimitiveType_LINES</code>
+ * to cause SortByPType to reject point and line meshes from the
+ * scene.</li>
+ * </ul>
+ *
+ * Note: Degenerated polygons are not necessarily bad and that's why
+ * they're not removed by default. There are several file formats
+ * which don't support lines or points. Some exporters bypass the
+ * format specification and write them as degenerated triangle
+ * instead.
+ */
+ FindDegenerates = 0x10000,
+
+ /**
+ * This step searches all meshes for invalid data, such as zeroed normal
+ * vectors or invalid UV coords and removes/fixes them. This is intended
+ * to get rid of some common exporter errors.
+ *
+ * This is especially useful for normals. If they are invalid, and the
+ * step recognizes this, they will be removed and can later be
+ * recomputed, e.g. by the <code>GenSmoothNormals</code> step.
+ *
+ * The step will also remove meshes that are infinitely small and reduce
+ * animation tracks consisting of hundreds if redundant keys to a single
+ * key. The <code>AI_CONFIG_PP_FID_ANIM_ACCURACY</code> config property
+ * decides the accuracy of the check for duplicate animation tracks.
+ */
+ FindInvalidData = 0x20000,
+
+ /**
+ * This step converts non-UV mappings (such as spherical or cylindrical
+ * mapping) to proper texture coordinate channels.
+ *
+ * Most applications will support UV mapping only, so you will probably
+ * want to specify this step in every case. Note tha Assimp is not always
+ * able to match the original mapping implementation of the 3d app which
+ * produced a model perfectly. It's always better to let the father app
+ * compute the UV channels, at least 3ds max, maja, blender, lightwave,
+ * modo, ... are able to achieve this.
+ *
+ * Note: If this step is not requested, you'll need to process the
+ * <code>AI_MATKEY_MAPPING</code> material property in order to
+ * display all assets properly.
+ */
+ GenUVCoords = 0x40000,
+
+ /**
+ * This step applies per-texture UV transformations and bakes them to
+ * stand-alone vtexture coordinate channelss.
+ *
+ * UV transformations are specified per-texture – see the
+ * <code>AI_MATKEY_UVTRANSFORM</code> material key for more information.
+ * This step processes all textures with transformed input UV coordinates
+ * and generates new (pretransformed) UV channel which replace the old
+ * channel. Most applications won't support UV transformations, so you
+ * will probably want to specify this step.
+ *
+ * Note: UV transformations are usually implemented in realtime apps by
+ * transforming texture coordinates at vertex shader stage with a 3x3
+ * (homogenous) transformation matrix.
+ */
+ TransformUVCoords = 0x80000,
+
+ /**
+ * This step searches for duplicate meshes and replaces duplicates with
+ * references to the first mesh.
+ *
+ * This step takes a while, don't use it if you have no time. Its main
+ * purpose is to workaround the limitation that many export file formats
+ * don't support instanced meshes, so exporters need to duplicate meshes.
+ * This step removes the duplicates again. Please note that Assimp does
+ * currently not support per-node material assignment to meshes, which
+ * means that identical meshes with differnent materials are currently
+ * <em>not</em> joined, although this is planned for future versions.
+ */
+ FindInstances = 0x100000,
+
+ /**
+ * A postprocessing step to reduce the number of meshes.
+ *
+ * In fact, it will reduce the number of drawcalls.
+ *
+ * This is a very effective optimization and is recommended to be used
+ * together with <code>OptimizeGraph</code>, if possible. The flag is
+ * fully compatible with both <code>SplitLargeMeshes</code> and
+ * <code>SortByPType</code>.
+ */
+ OptimizeMeshes = 0x200000,
+
+ /**
+ * A postprocessing step to optimize the scene hierarchy.
+ *
+ * Nodes with no animations, bones, lights or cameras assigned are
+ * collapsed and joined.
+ *
+ * Node names can be lost during this step. If you use special tag nodes
+ * to pass additional information through your content pipeline, use the
+ * <code>AI_CONFIG_PP_OG_EXCLUDE_LIST</code> setting to specify a list of
+ * node names you want to be kept. Nodes matching one of the names in
+ * this list won't be touched or modified.
+ *
+ * Use this flag with caution. Most simple files will be collapsed to a
+ * single node, complex hierarchies are usually completely lost. That's
+ * note the right choice for editor environments, but probably a very
+ * effective optimization if you just want to get the model data, convert
+ * it to your own format and render it as fast as possible.
+ *
+ * This flag is designed to be used with <code>OptimizeMeshes</code> for
+ * best results.
+ *
+ * Note: »Crappy« scenes with thousands of extremely small meshes packed
+ * in deeply nested nodes exist for almost all file formats.
+ * <code>OptimizeMeshes</code> in combination with
+ * <code>OptimizeGraph</code> usually fixes them all and makes them
+ * renderable.
+ */
+ OptimizeGraph = 0x400000,
+
+ /** This step flips all UV coordinates along the y-axis and adjusts
+ * material settings and bitangents accordingly.
+ *
+ * Output UV coordinate system:
+ * <pre> 0y|0y ---------- 1x|0y
+ * | |
+ * | |
+ * | |
+ * 0x|1y ---------- 1x|1y</pre>
+ * You'll probably want to consider this flag if you use Direct3D for
+ * rendering. The <code>AI_PROCESS_CONVERT_TO_LEFT_HANDED</code> flag
+ * supersedes this setting and bundles all conversions typically required
+ * for D3D-based applications.
+ */
+ FlipUVs = 0x800000,
+
+ /**
+ * This step adjusts the output face winding order to be clockwise.
+ *
+ * The default face winding order is counter clockwise.
+ *
+ * Output face order:
+ * <pre> x2
+ *
+ * x0
+ * x1</pre>
+ */
+ FlipWindingOrder = 0x1000000
+ }
+
+ /**
+ * Abbrevation for convenience.
+ */
+ alias aiPostProcessSteps aiProcess;
+
+ /**
+ * Shortcut flag for Direct3D-based applications.
+ *
+ * Combines the <code>MakeLeftHanded</code>, <code>FlipUVs</code> and
+ * <code>FlipWindingOrder</code> flags. The output data matches Direct3D's
+ * conventions: left-handed geometry, upper-left origin for UV coordinates
+ * and clockwise face order, suitable for CCW culling.
+ */
+ const aiPostProcessSteps AI_PROCESS_CONVERT_TO_LEFT_HANDED =
+ aiProcess.MakeLeftHanded |
+ aiProcess.FlipUVs |
+ aiProcess.FlipWindingOrder;
+
+ /**
+ * Default postprocess configuration optimizing the data for real-time rendering.
+ *
+ * Applications would want to use this preset to load models on end-user
+ * PCs, maybe for direct use in game.
+ *
+ * If you're using DirectX, don't forget to combine this value with
+ * the <code>ConvertToLeftHanded</code> step. If you don't support UV
+ * transformations in your application, apply the
+ * <code>TransformUVCoords</code> step, too.
+ *
+ * Note: Please take the time to read the doc for the steps enabled by this
+ * preset. Some of them offer further configurable properties, some of
+ * them might not be of use for you so it might be better to not specify
+ * them.
+ */
+ const aiPostProcessSteps AI_PROCESS_PRESET_TARGET_REALTIME_FAST =
+ aiProcess.CalcTangentSpace |
+ aiProcess.GenNormals |
+ aiProcess.JoinIdenticalVertices |
+ aiProcess.Triangulate |
+ aiProcess.GenUVCoords |
+ aiProcess.SortByPType;
+
+ /**
+ * Default postprocess configuration optimizing the data for real-time
+ * rendering.
+ *
+ * Unlike <code>AI_PROCESS_PRESET_TARGET_REALTIME_FAST</code>, this
+ * configuration performs some extra optimizations to improve rendering
+ * speed and to minimize memory usage. It could be a good choice for a
+ * level editor environment where import speed is not so important.
+ *
+ * If you're using DirectX, don't forget to combine this value with
+ * the <code>ConvertToLeftHanded</code> step. If you don't support UV
+ * transformations in your application, apply the
+ * <code>TransformUVCoords</code> step, too.
+ *
+ * Note: Please take the time to read the doc for the steps enabled by this
+ * preset. Some of them offer further configurable properties, some of
+ * them might not be of use for you so it might be better to not specify
+ * them.
+ */
+ const aiPostProcessSteps AI_PROCESS_PRESET_TARGET_REALTIME_QUALITY =
+ aiProcess.CalcTangentSpace |
+ aiProcess.GenSmoothNormals |
+ aiProcess.JoinIdenticalVertices |
+ aiProcess.ImproveCacheLocality |
+ aiProcess.LimitBoneWeights |
+ aiProcess.RemoveRedundantMaterials |
+ aiProcess.SplitLargeMeshes |
+ aiProcess.Triangulate |
+ aiProcess.GenUVCoords |
+ aiProcess.SortByPType |
+ aiProcess.FindDegenerates |
+ aiProcess.FindInvalidData;
+
+ /**
+ * Default postprocess configuration optimizing the data for real-time
+ * rendering.
+ *
+ * This preset enables almost every optimization step to achieve perfectly
+ * optimized data. It's your choice for level editor environments where
+ * import speed is not important.
+ *
+ * If you're using DirectX, don't forget to combine this value with
+ * the <code>ConvertToLeftHanded</code> step. If you don't support UV
+ * transformations in your application, apply the
+ * <code>TransformUVCoords</code> step, too.
+ *
+ * Note: Please take the time to read the doc for the steps enabled by this
+ * preset. Some of them offer further configurable properties, some of
+ * them might not be of use for you so it might be better to not specify
+ * them.
+ */
+ const aiPostProcessSteps AI_PROCESS_PRESET_TARGET_REALTIME_MAX_QUALITY =
+ AI_PROCESS_PRESET_TARGET_REALTIME_QUALITY |
+ aiProcess.FindInstances |
+ aiProcess.ValidateDataStructure |
+ aiProcess.OptimizeMeshes;
+}
diff --git a/src/mesh/assimp-master/port/dAssimp/assimp/scene.d b/src/mesh/assimp-master/port/dAssimp/assimp/scene.d
new file mode 100644
index 0000000..deee75a
--- /dev/null
+++ b/src/mesh/assimp-master/port/dAssimp/assimp/scene.d
@@ -0,0 +1,306 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (ASSIMP)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2020, ASSIMP Development Team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+ * Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+ * Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+ * Neither the name of the ASSIMP team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the ASSIMP Development Team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/**
+ * Contains the data structures which store the hierarchy fo the imported data.
+ */
+module assimp.scene;
+
+import assimp.animation;
+import assimp.camera;
+import assimp.light;
+import assimp.math;
+import assimp.mesh;
+import assimp.material;
+import assimp.texture;
+import assimp.types;
+
+extern ( C ) {
+ /**
+ * A node in the imported hierarchy.
+ *
+ * Each node has name, a parent node (except for the root node), a
+ * transformation relative to its parent and possibly several child nodes.
+ * Simple file formats don't support hierarchical structures, for these
+ * formats the imported scene does consist of only a single root node with
+ * no childs.
+ */
+ struct aiNode {
+ /**
+ * The name of the node.
+ *
+ * The name might be empty (length of zero) but all nodes which need to
+ * be accessed afterwards by bones or animations are usually named.
+ * Multiple nodes may have the same name, but nodes which are accessed
+ * by bones (see <code>aiBone</code> and <code>aiMesh.mBones</code>)
+ * <em>must</em> be unique.
+ *
+ * Cameras and lights are assigned to a specific node name – if there are
+ * multiple nodes with this name, they are assigned to each of them.
+ *
+ * There are no limitations regarding the characters contained in this
+ * string. You should be able to handle stuff like whitespace, tabs,
+ * linefeeds, quotation marks, ampersands, …
+ */
+ aiString mName;
+
+ /**
+ * The transformation relative to the node's parent.
+ */
+ aiMatrix4x4 mTransformation;
+
+ /**
+ * Parent node.
+ *
+ * null if this node is the root node.
+ */
+ aiNode* mParent;
+
+ /**
+ * The number of child nodes of this node.
+ */
+ uint mNumChildren;
+
+ /**
+ * The child nodes of this node.
+ *
+ * null if <code>mNumChildren</code> is 0.
+ */
+ aiNode** mChildren;
+
+ /**
+ * The number of meshes of this node.
+ */
+ int mNumMeshes;
+
+ /**
+ * The meshes of this node.
+ *
+ * Each entry is an index for <code>aiScene.mMeshes</code>.
+ */
+ uint* mMeshes;
+ }
+
+ /**
+ * Flags which are combinated in <code>aiScene.mFlags</code> to store
+ * auxiliary information about the imported scene.
+ */
+ enum aiSceneFlags : uint {
+ /**
+ * Specifies that the scene data structure that was imported is not
+ * complete.
+ *
+ * This flag bypasses some internal validations and allows the import of
+ * animation skeletons, material libraries or camera animation paths
+ * using Assimp. Most applications won't support such data.
+ */
+ INCOMPLETE = 0x1,
+
+ /**
+ * This flag is set by the validation post-processing step
+ * (<code>aiProcess.ValidateDS</code>) if the validation was successful.
+ *
+ * In a validated scene you can be sure that any cross references in the
+ * data structure (e.g. vertex indices) are valid.
+ */
+ VALIDATED = 0x2,
+
+ /**
+ * This flag is set by the validation post-processing step
+ * (<code>aiProcess.ValidateDS</code>) if the validation is successful
+ * but some issues have been found.
+ *
+ * This can for example mean that a texture that does not exist is
+ * referenced by a material or that the bone weights for a vertex don't
+ * sum to 1. In most cases you should still be able to use the import.
+ *
+ * This flag could be useful for applications which don't capture
+ * Assimp's log output.
+ */
+ VALIDATION_WARNING = 0x4,
+
+ /**
+ * This flag is currently only set by the
+ * <code>aiProcess.JoinIdenticalVertices</code> post-processing step. It
+ * indicates that the vertices of the output meshes aren't in the
+ * internal verbose format anymore. In the verbose format all vertices
+ * are unique, no vertex is ever referenced by more than one face.
+ */
+ NON_VERBOSE_FORMAT = 0x8,
+
+ /**
+ * Denotes pure height-map terrain data. Pure terrains usually consist of
+ * quads, sometimes triangles, in a regular grid. The x,y coordinates of
+ * all vertex positions refer to the x,y coordinates on the terrain
+ * height map, the z-axis stores the elevation at a specific point.
+ *
+ * TER (Terragen) and HMP (3D Game Studio) are height map formats.
+ *
+ * Note: Assimp is probably not the best choice for loading <em>huge</em>
+ * terrains – fully triangulated data takes extremely much storage
+ * space and should be avoided as long as possible (typically you will
+ * perform the triangulation when you actually need to render it).
+ */
+ FLAGS_TERRAIN = 0x10
+ }
+
+ /**
+ * The root structure of the imported data.
+ *
+ * Everything that was imported from the given file can be accessed from here.
+ * Objects of this class are generally maintained and owned by Assimp, not
+ * by the caller. You shouldn't want to instance it, nor should you ever try to
+ * delete a given scene on your own.
+ */
+ struct aiScene {
+ /**
+ * Any combination of the <code>aiSceneFlags</code>. By default, this
+ * value is 0, no flags are set.
+ *
+ * Most applications will want to reject all scenes with the
+ * <code>aiSceneFlags.INCOMPLETE</code> bit set.
+ */
+ uint mFlags;
+
+ /**
+ * The root node of the hierarchy.
+ *
+ * There will always be at least the root node if the import was
+ * successful (and no special flags have been set). Presence of further
+ * nodes depends on the format and contents of the imported file.
+ */
+ aiNode* mRootNode;
+
+ /**
+ * The number of meshes in the scene.
+ */
+ uint mNumMeshes;
+
+ /**
+ * The array of meshes.
+ *
+ * Use the indices given in the <code>aiNode</code> structure to access
+ * this array. The array is <code>mNumMeshes</code> in size.
+ *
+ * If the <code>aiSceneFlags.INCOMPLETE</code> flag is not set, there
+ * will always be at least one mesh.
+ */
+ aiMesh** mMeshes;
+
+ /**
+ * The number of materials in the scene.
+ */
+ uint mNumMaterials;
+
+ /**
+ * The array of meshes.
+ *
+ * Use the indices given in the <code>aiMesh</code> structure to access
+ * this array. The array is <code>mNumMaterials</code> in size.
+ *
+ * If the <code>aiSceneFlags.INCOMPLETE</code> flag is not set, there
+ * will always be at least one material.
+ */
+ aiMaterial** mMaterials;
+
+ /**
+ * The number of animations in the scene.
+ */
+ uint mNumAnimations;
+
+ /**
+ * The array of animations.
+ *
+ * All animations imported from the given file are listed here. The array
+ * is <code>mNumAnimations</code> in size.
+ */
+ aiAnimation** mAnimations;
+
+ /**
+ * The number of textures embedded into the file.
+ */
+ uint mNumTextures;
+
+ /**
+ * The array of embedded textures.
+ *
+ * Not many file formats embed their textures into the file. An example
+ * is Quake's <code>MDL</code> format (which is also used by some
+ * GameStudio versions).
+ */
+ aiTexture** mTextures;
+
+ /**
+ * The number of light sources in the scene.
+ *
+ * Light sources are fully optional, in most cases this attribute will be
+ * 0.
+ */
+ uint mNumLights;
+
+ /**
+ * The array of light sources.
+ *
+ * All light sources imported from the given file are listed here. The
+ * array is <code>mNumLights</code> in size.
+ */
+ aiLight** mLights;
+
+ /**
+ * The number of cameras in the scene.
+ *
+ * Cameras are fully optional, in most cases this attribute
+ * will be 0.
+ */
+ uint mNumCameras;
+
+ /**
+ * The array of cameras.
+ *
+ * All cameras imported from the given file are listed here. The array is
+ * <code>mNumCameras</code> in size.
+ *
+ * The first camera in the array (if existing) is the default camera view
+ * at the scene.
+ */
+ aiCamera** mCameras;
+ }
+}
diff --git a/src/mesh/assimp-master/port/dAssimp/assimp/texture.d b/src/mesh/assimp-master/port/dAssimp/assimp/texture.d
new file mode 100644
index 0000000..83453b9
--- /dev/null
+++ b/src/mesh/assimp-master/port/dAssimp/assimp/texture.d
@@ -0,0 +1,122 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (ASSIMP)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2020, ASSIMP Development Team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+ * Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+ * Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+ * Neither the name of the ASSIMP team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the ASSIMP Development Team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/**
+ * Contains helper structures to handle textures in Assimp.
+ *
+ * Used for file formats which embed their textures into the model file.
+ * Supported are both normal textures, which are stored as uncompressed pixels,
+ * and "compressed" textures, which are stored in a file format such as PNG or
+ * TGA.
+ */
+module assimp.texture;
+
+extern ( C ) {
+ /**
+ * Helper structure to represent a texel in a ARGB8888 format.
+ *
+ * Used by aiTexture.
+ */
+ struct aiTexel {
+ align ( 1 ):
+ ubyte b, g, r, a;
+ }
+
+ /**
+ * Helper structure to describe an embedded texture.
+ *
+ * Usually textures are contained in external files but some file formats
+ * embed them directly in the model file. There are two types of
+ * embedded textures:
+ *
+ * <em>1. Uncompressed textures</em>: The color data is given in an
+ * uncompressed format.
+ *
+ * <em>2. Compressed textures</em> stored in a file format like PNG or JPEG.
+ * The raw file bytes are given so the application must utilize an image
+ * decoder (e.g. DevIL) to get access to the actual color data.
+ */
+ struct aiTexture {
+ /**
+ * Width of the texture, in pixels.
+ *
+ * If <code>mHeight</code> is zero the texture is compressed in a format
+ * like JPEG. In this case, this value specifies the size of the memory
+ * area <code>pcData</code> is pointing to, in bytes.
+ */
+ uint mWidth;
+
+ /**
+ * Height of the texture, in pixels.
+ *
+ * If this value is zero, <code>pcData</code> points to an compressed
+ * texture in any format (e.g. JPEG).
+ */
+ uint mHeight;
+
+ /**
+ * A hint from the loader to make it easier for applications to determine
+ * the type of embedded compressed textures.
+ *
+ * If <code>mHeight</code> is not 0, this member is undefined. Otherwise
+ * it is set set to '\0\0\0\0' if the loader has no additional
+ * information about the texture file format used, or the file extension
+ * of the format without a trailing dot. If there are multiple file
+ * extensions for a format, the shortest extension is chosen (JPEG maps
+ * to 'jpg', not to 'jpeg'). E.g. 'dds\0', 'pcx\0', 'jpg\0'. All
+ * characters are lower-case. The fourth byte will always be '\0'.
+ */
+ char achFormatHint[4];
+
+ /**
+ * Data of the texture.
+ *
+ * Points to an array of <code>mWidth * mHeight</code>
+ * <code>aiTexel</code>s. The format of the texture data is always
+ * ARGB8888 to make the implementation for user of the library as easy as
+ * possible.
+ *
+ * If <code>mHeight</code> is 0, this is a pointer to a memory buffer of
+ * size <code>mWidth</code> containing the compressed texture data.
+ */
+ aiTexel* pcData;
+ }
+}
diff --git a/src/mesh/assimp-master/port/dAssimp/assimp/types.d b/src/mesh/assimp-master/port/dAssimp/assimp/types.d
new file mode 100644
index 0000000..5aa4d54
--- /dev/null
+++ b/src/mesh/assimp-master/port/dAssimp/assimp/types.d
@@ -0,0 +1,249 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (ASSIMP)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2020, ASSIMP Development Team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+ * Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+ * Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+ * Neither the name of the ASSIMP team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the ASSIMP Development Team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/**
+ * Contains miscellaneous types used in Assimp's C API.
+ */
+module assimp.types;
+
+extern ( C ) {
+ /**
+ * Our own C boolean type.
+ */
+ enum aiBool : int {
+ FALSE = 0,
+ TRUE = 1
+ }
+
+ /**
+ * Type definition for log stream callback function pointers.
+ */
+ alias void function( char* message, char* user ) aiLogStreamCallback;
+
+ /**
+ * Represents a log stream. A log stream receives all log messages and
+ * streams them somewhere.
+ *
+ * See: <code>aiGetPredefinedLogStream</code>,
+ * <code>aiAttachLogStream</code> and <code>aiDetachLogStream</code>.
+ */
+ struct aiLogStream {
+ /**
+ * Callback function to be called when a new message arrives.
+ */
+ aiLogStreamCallback callback;
+
+ /**
+ * User data to be passed to the callback.
+ */
+ char* user;
+ }
+
+ /**
+ * Maximum dimension for <code>aiString</code>s.
+ *
+ * Assimp strings are zero terminated.
+ */
+ const size_t MAXLEN = 1024;
+
+ /**
+ * Represents an UTF-8 string, zero byte terminated.
+ *
+ * The length of such a string is limited to <code>MAXLEN</code> bytes
+ * (excluding the terminal \0).
+ *
+ * The character set of an aiString is explicitly defined to be UTF-8. This
+ * Unicode transformation was chosen in the belief that most strings in 3d
+ * model files are limited to ASCII characters, thus the character set
+ * needed to be ASCII compatible.
+ *
+ * Most text file loaders provide proper Unicode input file handling,
+ * special unicode characters are correctly transcoded to UTF-8 and are kept
+ * throughout the libraries' import pipeline.
+ *
+ * For most applications, it will be absolutely sufficient to interpret the
+ * aiString as ASCII data and work with it as one would work with a plain
+ * char[].
+ *
+ * To access an aiString from D you might want to use something like the
+ * following piece of code:
+ * ---
+ * char[] importAiString( aiString* s ) {
+ * return s.data[ 0 .. s.length ];
+ * }
+ * ---
+ */
+ struct aiString {
+ /**
+ * Length of the string (excluding the terminal \0).
+ *
+ * This is <em>not</em> the logical length of strings containing UTF-8
+ * multibyte sequences, but the number of bytes from the beginning of the
+ * string to its end.
+ */
+ size_t length;
+
+ /**
+ * String buffer.
+ *
+ * Size limit is <code>MAXLEN</code>.
+ */
+ char data[ MAXLEN ];
+ }
+
+ /**
+ * Standard return type for some library functions.
+ */
+ enum aiReturn : uint {
+ /**
+ * Indicates that a function was successful.
+ */
+ SUCCESS = 0x0,
+
+ /**
+ * Indicates that a function failed.
+ */
+ FAILURE = -0x1,
+
+ /**
+ * Indicates that not enough memory was available to perform the
+ * requested operation.
+ */
+ OUTOFMEMORY = -0x3
+ }
+
+ /**
+ * Seek origins (for the virtual file system API).
+ */
+ enum aiOrigin : uint {
+ /**
+ * Beginning of the file.
+ */
+ SET = 0x0,
+
+ /**
+ * Current position of the file pointer.
+ */
+ CUR = 0x1,
+
+ /**
+ * End of the file.
+ *
+ * Offsets must be negative.
+ */
+ END = 0x2
+ }
+
+ /**
+ * Enumerates predefined log streaming destinations.
+ *
+ * Logging to these streams can be enabled with a single call to
+ * <code>aiAttachPredefinedLogStream()</code>.
+ */
+ enum aiDefaultLogStream :uint {
+ /**
+ * Stream the log to a file.
+ */
+ FILE = 0x1,
+
+ /**
+ * Stream the log to standard output.
+ */
+ STDOUT = 0x2,
+
+ /**
+ * Stream the log to standard error.
+ */
+ STDERR = 0x4,
+
+ /**
+ * MSVC only: Stream the log the the debugger (this relies on
+ * <code>OutputDebugString</code> from the Win32 SDK).
+ */
+ DEBUGGER = 0x8
+ }
+
+ /**
+ * Stores the memory requirements for different components (e.g. meshes,
+ * materials, animations) of an import. All sizes are in bytes.
+ */
+ struct aiMemoryInfo {
+ /**
+ * Storage allocated for texture data.
+ */
+ uint textures;
+
+ /**
+ * Storage allocated for material data.
+ */
+ uint materials;
+
+ /**
+ * Storage allocated for mesh data.
+ */
+ uint meshes;
+
+ /**
+ * Storage allocated for node data.
+ */
+ uint nodes;
+
+ /**
+ * Storage allocated for animation data.
+ */
+ uint animations;
+
+ /**
+ * Storage allocated for camera data.
+ */
+ uint cameras;
+
+ /**
+ * Storage allocated for light data.
+ */
+ uint lights;
+
+ /**
+ * Total storage allocated for the full import.
+ */
+ uint total;
+ }
+}
diff --git a/src/mesh/assimp-master/port/dAssimp/assimp/versionInfo.d b/src/mesh/assimp-master/port/dAssimp/assimp/versionInfo.d
new file mode 100644
index 0000000..5a7e9b9
--- /dev/null
+++ b/src/mesh/assimp-master/port/dAssimp/assimp/versionInfo.d
@@ -0,0 +1,72 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (ASSIMP)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2020, ASSIMP Development Team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+ * Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+ * Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+ * Neither the name of the ASSIMP team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the ASSIMP Development Team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/**
+ * Flags returned by <code>aiGetCompileFlags()</code>.
+ */
+module assimp.versionInfo;
+
+extern ( C ) {
+ /**
+ * Assimp was compiled as a shared object (Windows: DLL).
+ */
+ const uint ASSIMP_CFLAGS_SHARED = 0x1;
+
+ /**
+ * Assimp was compiled against STLport.
+ */
+ const uint ASSIMP_CFLAGS_STLPORT = 0x2;
+
+ /**
+ * Assimp was compiled as a debug build.
+ */
+ const uint ASSIMP_CFLAGS_DEBUG = 0x4;
+
+ /**
+ * Assimp was compiled with ASSIMP_BUILD_BOOST_WORKAROUND defined.
+ */
+ const uint ASSIMP_CFLAGS_NOBOOST = 0x8;
+
+ /**
+ * Assimp was compiled with ASSIMP_BUILD_SINGLETHREADED defined.
+ */
+ const uint ASSIMP_CFLAGS_SINGLETHREADED = 0x10;
+}