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Diffstat (limited to 'src/mesh/assimp-master/include/assimp/mesh.h')
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diff --git a/src/mesh/assimp-master/include/assimp/mesh.h b/src/mesh/assimp-master/include/assimp/mesh.h deleted file mode 100644 index 5704e7c..0000000 --- a/src/mesh/assimp-master/include/assimp/mesh.h +++ /dev/null @@ -1,943 +0,0 @@ -/* ---------------------------------------------------------------------------- -Open Asset Import Library (assimp) ---------------------------------------------------------------------------- - -Copyright (c) 2006-2022, assimp 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 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. ---------------------------------------------------------------------------- -*/ - -/** @file mesh.h - * @brief Declares the data structures in which the imported geometry is - returned by ASSIMP: aiMesh, aiFace and aiBone data structures. - */ -#pragma once -#ifndef AI_MESH_H_INC -#define AI_MESH_H_INC - -#ifdef __GNUC__ -#pragma GCC system_header -#endif - -#ifdef _MSC_VER -#pragma warning(disable : 4351) -#endif // _MSC_VER - -#include <assimp/aabb.h> -#include <assimp/types.h> - -#ifdef __cplusplus -extern "C" { -#endif - -// --------------------------------------------------------------------------- -// Limits. These values 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. -// --------------------------------------------------------------------------- - -/** @def AI_MAX_FACE_INDICES - * Maximum number of indices per face (polygon). */ - -#ifndef AI_MAX_FACE_INDICES -#define AI_MAX_FACE_INDICES 0x7fff -#endif - -/** @def AI_MAX_BONE_WEIGHTS - * Maximum number of indices per face (polygon). */ - -#ifndef AI_MAX_BONE_WEIGHTS -#define AI_MAX_BONE_WEIGHTS 0x7fffffff -#endif - -/** @def AI_MAX_VERTICES - * Maximum number of vertices per mesh. */ - -#ifndef AI_MAX_VERTICES -#define AI_MAX_VERTICES 0x7fffffff -#endif - -/** @def AI_MAX_FACES - * Maximum number of faces per mesh. */ - -#ifndef AI_MAX_FACES -#define AI_MAX_FACES 0x7fffffff -#endif - -/** @def AI_MAX_NUMBER_OF_COLOR_SETS - * Supported number of vertex color sets per mesh. */ - -#ifndef AI_MAX_NUMBER_OF_COLOR_SETS -#define AI_MAX_NUMBER_OF_COLOR_SETS 0x8 -#endif // !! AI_MAX_NUMBER_OF_COLOR_SETS - -/** @def AI_MAX_NUMBER_OF_TEXTURECOORDS - * Supported number of texture coord sets (UV(W) channels) per mesh */ - -#ifndef AI_MAX_NUMBER_OF_TEXTURECOORDS -#define AI_MAX_NUMBER_OF_TEXTURECOORDS 0x8 -#endif // !! AI_MAX_NUMBER_OF_TEXTURECOORDS - -// --------------------------------------------------------------------------- -/** @brief A single face in a mesh, referring to multiple vertices. - * - * If mNumIndices is 3, we call the face 'triangle', for mNumIndices > 3 - * it's called 'polygon' (hey, that's just a definition!). - * <br> - * aiMesh::mPrimitiveTypes can be queried to quickly examine which types of - * primitive are actually present in a mesh. The #aiProcess_SortByPType flag - * executes a special post-processing algorithm which splits meshes with - * *different* primitive types mixed up (e.g. lines and triangles) in several - * 'clean' submeshes. Furthermore there is a configuration option ( - * #AI_CONFIG_PP_SBP_REMOVE) to force #aiProcess_SortByPType to remove - * specific kinds of primitives from the imported scene, completely and forever. - * In many cases you'll probably want to set this setting to - * @code - * aiPrimitiveType_LINE|aiPrimitiveType_POINT - * @endcode - * Together with the #aiProcess_Triangulate flag you can then be sure that - * #aiFace::mNumIndices is always 3. - * @note Take a look at the @link data Data Structures page @endlink for - * more information on the layout and winding order of a face. - */ -struct aiFace { - //! Number of indices defining this face. - //! The maximum value for this member is #AI_MAX_FACE_INDICES. - unsigned int mNumIndices; - - //! Pointer to the indices array. Size of the array is given in numIndices. - unsigned int *mIndices; - -#ifdef __cplusplus - - //! Default constructor - aiFace() AI_NO_EXCEPT - : mNumIndices(0), - mIndices(nullptr) { - // empty - } - - //! Default destructor. Delete the index array - ~aiFace() { - delete[] mIndices; - } - - //! Copy constructor. Copy the index array - aiFace(const aiFace &o) : - mNumIndices(0), mIndices(nullptr) { - *this = o; - } - - //! Assignment operator. Copy the index array - aiFace &operator=(const aiFace &o) { - if (&o == this) { - return *this; - } - - delete[] mIndices; - mNumIndices = o.mNumIndices; - if (mNumIndices) { - mIndices = new unsigned int[mNumIndices]; - ::memcpy(mIndices, o.mIndices, mNumIndices * sizeof(unsigned int)); - } else { - mIndices = nullptr; - } - - return *this; - } - - //! Comparison operator. Checks whether the index array - //! of two faces is identical - bool operator==(const aiFace &o) const { - if (mIndices == o.mIndices) { - return true; - } - - if (nullptr != mIndices && mNumIndices != o.mNumIndices) { - return false; - } - - if (nullptr == mIndices) { - return false; - } - - for (unsigned int i = 0; i < this->mNumIndices; ++i) { - if (mIndices[i] != o.mIndices[i]) { - return false; - } - } - - return true; - } - - //! Inverse comparison operator. Checks whether the index - //! array of two faces is NOT identical - bool operator!=(const aiFace &o) const { - return !(*this == o); - } -#endif // __cplusplus -}; // struct aiFace - -// --------------------------------------------------------------------------- -/** @brief A single influence of a bone on a vertex. - */ -struct aiVertexWeight { - //! Index of the vertex which is influenced by the bone. - unsigned int mVertexId; - - //! The strength of the influence in the range (0...1). - //! The influence from all bones at one vertex amounts to 1. - ai_real mWeight; - -#ifdef __cplusplus - - //! Default constructor - aiVertexWeight() AI_NO_EXCEPT - : mVertexId(0), - mWeight(0.0f) { - // empty - } - - //! Initialization from a given index and vertex weight factor - //! \param pID ID - //! \param pWeight Vertex weight factor - aiVertexWeight(unsigned int pID, float pWeight) : - mVertexId(pID), mWeight(pWeight) { - // empty - } - - bool operator==(const aiVertexWeight &rhs) const { - return (mVertexId == rhs.mVertexId && mWeight == rhs.mWeight); - } - - bool operator!=(const aiVertexWeight &rhs) const { - return (*this == rhs); - } - -#endif // __cplusplus -}; - -// Forward declare aiNode (pointer use only) -struct aiNode; - -// --------------------------------------------------------------------------- -/** @brief 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, and a matrix relating the mesh position to the - * position of the bone at the time of binding. - */ -struct aiBone { - //! The name of the bone. - C_STRUCT aiString mName; - - //! The number of vertices affected by this bone. - //! The maximum value for this member is #AI_MAX_BONE_WEIGHTS. - unsigned int mNumWeights; - -#ifndef ASSIMP_BUILD_NO_ARMATUREPOPULATE_PROCESS - // The bone armature node - used for skeleton conversion - // you must enable aiProcess_PopulateArmatureData to populate this - C_STRUCT aiNode *mArmature; - - // The bone node in the scene - used for skeleton conversion - // you must enable aiProcess_PopulateArmatureData to populate this - C_STRUCT aiNode *mNode; - -#endif - //! The influence weights of this bone, by vertex index. - C_STRUCT aiVertexWeight *mWeights; - - /** Matrix that transforms from bone space to mesh space in bind pose. - * - * This matrix describes the position of the mesh - * in the local space of this bone when the skeleton was bound. - * Thus it can be used directly to determine a desired vertex position, - * given the world-space transform of the bone when animated, - * and the position of the vertex in mesh space. - * - * It is sometimes called an inverse-bind matrix, - * or inverse bind pose matrix. - */ - C_STRUCT aiMatrix4x4 mOffsetMatrix; - -#ifdef __cplusplus - - //! Default constructor - aiBone() AI_NO_EXCEPT - : mName(), - mNumWeights(0), -#ifndef ASSIMP_BUILD_NO_ARMATUREPOPULATE_PROCESS - mArmature(nullptr), - mNode(nullptr), -#endif - mWeights(nullptr), - mOffsetMatrix() { - // empty - } - - //! Copy constructor - aiBone(const aiBone &other) : - mName(other.mName), - mNumWeights(other.mNumWeights), -#ifndef ASSIMP_BUILD_NO_ARMATUREPOPULATE_PROCESS - mArmature(nullptr), - mNode(nullptr), -#endif - mWeights(nullptr), - mOffsetMatrix(other.mOffsetMatrix) { - if (other.mWeights && other.mNumWeights) { - mWeights = new aiVertexWeight[mNumWeights]; - ::memcpy(mWeights, other.mWeights, mNumWeights * sizeof(aiVertexWeight)); - } - } - - //! Assignment operator - aiBone &operator=(const aiBone &other) { - if (this == &other) { - return *this; - } - - mName = other.mName; - mNumWeights = other.mNumWeights; - mOffsetMatrix = other.mOffsetMatrix; - - if (other.mWeights && other.mNumWeights) { - if (mWeights) { - delete[] mWeights; - } - - mWeights = new aiVertexWeight[mNumWeights]; - ::memcpy(mWeights, other.mWeights, mNumWeights * sizeof(aiVertexWeight)); - } - - return *this; - } - - bool operator==(const aiBone &rhs) const { - if (mName != rhs.mName || mNumWeights != rhs.mNumWeights) { - return false; - } - - for (size_t i = 0; i < mNumWeights; ++i) { - if (mWeights[i] != rhs.mWeights[i]) { - return false; - } - } - - return true; - } - //! Destructor - deletes the array of vertex weights - ~aiBone() { - delete[] mWeights; - } -#endif // __cplusplus -}; - -// --------------------------------------------------------------------------- -/** @brief Enumerates the types of geometric primitives supported by Assimp. - * - * @see aiFace Face data structure - * @see aiProcess_SortByPType Per-primitive sorting of meshes - * @see aiProcess_Triangulate Automatic triangulation - * @see AI_CONFIG_PP_SBP_REMOVE Removal of specific primitive types. - */ -enum aiPrimitiveType { - /** A point primitive. - * - * This is just a single vertex in the virtual world, - * #aiFace contains just one index for such a primitive. - */ - aiPrimitiveType_POINT = 0x1, - - /** A line primitive. - * - * This is a line defined through a start and an end position. - * #aiFace contains exactly two indices for such a primitive. - */ - aiPrimitiveType_LINE = 0x2, - - /** A triangular primitive. - * - * A triangle consists of three indices. - */ - aiPrimitiveType_TRIANGLE = 0x4, - - /** A higher-level polygon with more than 3 edges. - * - * A triangle is a polygon, but polygon in this context means - * "all polygons that are not triangles". The "Triangulate"-Step - * is provided for your convenience, it splits all polygons in - * triangles (which are much easier to handle). - */ - aiPrimitiveType_POLYGON = 0x8, - - /** - * A flag to determine whether this triangles only mesh is NGON encoded. - * - * NGON encoding is a special encoding that tells whether 2 or more consecutive triangles - * should be considered as a triangle fan. This is identified by looking at the first vertex index. - * 2 consecutive triangles with the same 1st vertex index are part of the same - * NGON. - * - * At the moment, only quads (concave or convex) are supported, meaning that polygons are 'seen' as - * triangles, as usual after a triangulation pass. - * - * To get an NGON encoded mesh, please use the aiProcess_Triangulate post process. - * - * @see aiProcess_Triangulate - * @link https://github.com/KhronosGroup/glTF/pull/1620 - */ - aiPrimitiveType_NGONEncodingFlag = 0x10, - -/** This value is not used. It is just here to force the - * compiler to map this enum to a 32 Bit integer. - */ -#ifndef SWIG - _aiPrimitiveType_Force32Bit = INT_MAX -#endif -}; //! enum aiPrimitiveType - -// Get the #aiPrimitiveType flag for a specific number of face indices -#define AI_PRIMITIVE_TYPE_FOR_N_INDICES(n) \ - ((n) > 3 ? aiPrimitiveType_POLYGON : (aiPrimitiveType)(1u << ((n)-1))) - -// --------------------------------------------------------------------------- -/** @brief An AnimMesh is an attachment to an #aiMesh stores per-vertex - * animations for a particular frame. - * - * You may think of an #aiAnimMesh 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 (#aiMesh::mAnimMeshes). - * 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 { - /**Anim Mesh name */ - C_STRUCT aiString mName; - - /** Replacement for aiMesh::mVertices. If this array is non-nullptr, - * it *must* contain mNumVertices entries. The corresponding - * array in the host mesh must be non-nullptr as well - animation - * meshes may neither add or nor remove vertex components (if - * a replacement array is nullptr and the corresponding source - * array is not, the source data is taken instead)*/ - C_STRUCT aiVector3D *mVertices; - - /** Replacement for aiMesh::mNormals. */ - C_STRUCT aiVector3D *mNormals; - - /** Replacement for aiMesh::mTangents. */ - C_STRUCT aiVector3D *mTangents; - - /** Replacement for aiMesh::mBitangents. */ - C_STRUCT aiVector3D *mBitangents; - - /** Replacement for aiMesh::mColors */ - C_STRUCT aiColor4D *mColors[AI_MAX_NUMBER_OF_COLOR_SETS]; - - /** Replacement for aiMesh::mTextureCoords */ - C_STRUCT 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. - */ - unsigned int mNumVertices; - - /** - * Weight of the AnimMesh. - */ - float mWeight; - -#ifdef __cplusplus - - aiAnimMesh() AI_NO_EXCEPT - : mVertices(nullptr), - mNormals(nullptr), - mTangents(nullptr), - mBitangents(nullptr), - mColors(), - mTextureCoords(), - mNumVertices(0), - mWeight(0.0f) { - // fixme consider moving this to the ctor initializer list as well - for (unsigned int a = 0; a < AI_MAX_NUMBER_OF_TEXTURECOORDS; a++) { - mTextureCoords[a] = nullptr; - } - for (unsigned int a = 0; a < AI_MAX_NUMBER_OF_COLOR_SETS; a++) { - mColors[a] = nullptr; - } - } - - ~aiAnimMesh() { - delete[] mVertices; - delete[] mNormals; - delete[] mTangents; - delete[] mBitangents; - for (unsigned int a = 0; a < AI_MAX_NUMBER_OF_TEXTURECOORDS; a++) { - delete[] mTextureCoords[a]; - } - for (unsigned int a = 0; a < AI_MAX_NUMBER_OF_COLOR_SETS; a++) { - delete[] mColors[a]; - } - } - - /** Check whether the anim mesh overrides the vertex positions - * of its host mesh*/ - bool HasPositions() const { - return mVertices != nullptr; - } - - /** Check whether the anim mesh overrides the vertex normals - * of its host mesh*/ - bool HasNormals() const { - return mNormals != nullptr; - } - - /** Check whether the anim mesh overrides the vertex tangents - * and bitangents of its host mesh. As for aiMesh, - * tangents and bitangents always go together. */ - bool HasTangentsAndBitangents() const { - return mTangents != nullptr; - } - - /** Check whether the anim mesh overrides a particular - * set of vertex colors on his host mesh. - * @param pIndex 0<index<AI_MAX_NUMBER_OF_COLOR_SETS */ - bool HasVertexColors(unsigned int pIndex) const { - return pIndex >= AI_MAX_NUMBER_OF_COLOR_SETS ? false : mColors[pIndex] != nullptr; - } - - /** Check whether the anim mesh overrides a particular - * set of texture coordinates on his host mesh. - * @param pIndex 0<index<AI_MAX_NUMBER_OF_TEXTURECOORDS */ - bool HasTextureCoords(unsigned int pIndex) const { - return pIndex >= AI_MAX_NUMBER_OF_TEXTURECOORDS ? false : mTextureCoords[pIndex] != nullptr; - } - -#endif -}; - -// --------------------------------------------------------------------------- -/** @brief Enumerates the methods of mesh morphing supported by Assimp. - */ -enum aiMorphingMethod { - /** Interpolation between morph targets */ - aiMorphingMethod_VERTEX_BLEND = 0x1, - - /** Normalized morphing between morph targets */ - aiMorphingMethod_MORPH_NORMALIZED = 0x2, - - /** Relative morphing between morph targets */ - aiMorphingMethod_MORPH_RELATIVE = 0x3, - -/** This value is not used. It is just here to force the - * compiler to map this enum to a 32 Bit integer. - */ -#ifndef SWIG - _aiMorphingMethod_Force32Bit = INT_MAX -#endif -}; //! enum aiMorphingMethod - -// --------------------------------------------------------------------------- -/** @brief A mesh represents a geometry or model with a single material. -* -* It usually consists of a number of vertices and a series of 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 coordinates or a normal vector. -* If a data pointer is non-null, the corresponding data stream is present. -* From C++-programs you can also use the comfort functions Has*() to -* test for the presence of various data streams. -* -* A Mesh uses only a single material which is referenced by a material ID. -* @note The mPositions member is usually not optional. However, vertex positions -* *could* be missing if the #AI_SCENE_FLAGS_INCOMPLETE flag is set in -* @code -* aiScene::mFlags -* @endcode -*/ -struct aiMesh { - /** Bitwise combination of the members of the #aiPrimitiveType enum. - * This specifies which types of primitives are present in the mesh. - * The "SortByPrimitiveType"-Step can be used to make sure the - * output meshes consist of one primitive type each. - */ - unsigned int 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 #AI_MAX_VERTICES. - */ - unsigned int mNumVertices; - - /** The number of primitives (triangles, polygons, lines) in this mesh. - * This is also the size of the mFaces array. - * The maximum value for this member is #AI_MAX_FACES. - */ - unsigned int mNumFaces; - - /** Vertex positions. - * This array is always present in a mesh. The array is - * mNumVertices in size. - */ - C_STRUCT aiVector3D *mVertices; - - /** Vertex normals. - * The array contains normalized vectors, nullptr if not present. - * The array is mNumVertices 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 QNaN (WARN: - * qNaN compares to inequal to *everything*, even to qNaN itself. - * Using code like this to check whether a field is qnan is: - * @code - * #define IS_QNAN(f) (f != f) - * @endcode - * still dangerous because even 1.f == 1.f could evaluate to false! ( - * remember the subtleties of IEEE754 artithmetics). Use stuff like - * @c fpclassify instead. - * @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. - */ - C_STRUCT aiVector3D *mNormals; - - /** Vertex tangents. - * The tangent of a vertex points in the direction of the positive - * X texture axis. The array contains normalized vectors, nullptr if - * not present. The array is mNumVertices 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 qNaN. See - * the #mNormals member for a detailed discussion of qNaNs. - * @note If the mesh contains tangents, it automatically also - * contains bitangents. - */ - C_STRUCT aiVector3D *mTangents; - - /** Vertex bitangents. - * The bitangent of a vertex points in the direction of the positive - * Y texture axis. The array contains normalized vectors, nullptr if not - * present. The array is mNumVertices in size. - * @note If the mesh contains tangents, it automatically also contains - * bitangents. - */ - C_STRUCT aiVector3D *mBitangents; - - /** Vertex color sets. - * A mesh may contain 0 to #AI_MAX_NUMBER_OF_COLOR_SETS vertex - * colors per vertex. nullptr if not present. Each array is - * mNumVertices in size if present. - */ - C_STRUCT aiColor4D *mColors[AI_MAX_NUMBER_OF_COLOR_SETS]; - - /** Vertex texture coordinates, also known as UV channels. - * A mesh may contain 0 to AI_MAX_NUMBER_OF_TEXTURECOORDS per - * vertex. nullptr if not present. The array is mNumVertices in size. - */ - C_STRUCT 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 n, the - * component p.z of mTextureCoords[n][p] is set to 0.0f. - * If the value is 1 for a given channel, p.y is set to 0.0f, too. - * @note 4D coordinates are not supported - */ - unsigned int mNumUVComponents[AI_MAX_NUMBER_OF_TEXTURECOORDS]; - - /** The faces the mesh is constructed 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 mNumFaces. If the #AI_SCENE_FLAGS_NON_VERBOSE_FORMAT - * is NOT set each face references an unique set of vertices. - */ - C_STRUCT aiFace *mFaces; - - /** The number of bones this mesh contains. - * Can be 0, in which case the mBones array is nullptr. - */ - unsigned int 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. - */ - C_STRUCT aiBone **mBones; - - /** The material used by this mesh. - * A mesh uses 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. - */ - unsigned int 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. - **/ - C_STRUCT aiString mName; - - /** The number of attachment meshes. Note! Currently only works with Collada loader. */ - unsigned int mNumAnimMeshes; - - /** Attachment meshes for this mesh, for vertex-based animation. - * Attachment meshes carry replacement data for some of the - * mesh'es vertex components (usually positions, normals). - * Note! Currently only works with Collada loader.*/ - C_STRUCT aiAnimMesh **mAnimMeshes; - - /** - * Method of morphing when anim-meshes are specified. - * @see aiMorphingMethod to learn more about the provided morphing targets. - */ - unsigned int mMethod; - - /** - * The bounding box. - */ - C_STRUCT aiAABB mAABB; - - /** Vertex UV stream names. Pointer to array of size AI_MAX_NUMBER_OF_TEXTURECOORDS - */ - C_STRUCT aiString **mTextureCoordsNames; - -#ifdef __cplusplus - - //! Default constructor. Initializes all members to 0 - aiMesh() AI_NO_EXCEPT - : mPrimitiveTypes(0), - mNumVertices(0), - mNumFaces(0), - mVertices(nullptr), - mNormals(nullptr), - mTangents(nullptr), - mBitangents(nullptr), - mColors(), - mTextureCoords(), - mNumUVComponents(), - mFaces(nullptr), - mNumBones(0), - mBones(nullptr), - mMaterialIndex(0), - mNumAnimMeshes(0), - mAnimMeshes(nullptr), - mMethod(0), - mAABB(), - mTextureCoordsNames(nullptr) { - for (unsigned int a = 0; a < AI_MAX_NUMBER_OF_TEXTURECOORDS; ++a) { - mNumUVComponents[a] = 0; - mTextureCoords[a] = nullptr; - } - - for (unsigned int a = 0; a < AI_MAX_NUMBER_OF_COLOR_SETS; ++a) { - mColors[a] = nullptr; - } - } - - //! Deletes all storage allocated for the mesh - ~aiMesh() { - delete[] mVertices; - delete[] mNormals; - delete[] mTangents; - delete[] mBitangents; - for (unsigned int a = 0; a < AI_MAX_NUMBER_OF_TEXTURECOORDS; a++) { - delete[] mTextureCoords[a]; - } - - if (mTextureCoordsNames) { - for (unsigned int a = 0; a < AI_MAX_NUMBER_OF_TEXTURECOORDS; a++) { - delete mTextureCoordsNames[a]; - } - delete[] mTextureCoordsNames; - } - - for (unsigned int a = 0; a < AI_MAX_NUMBER_OF_COLOR_SETS; a++) { - delete[] mColors[a]; - } - - // DO NOT REMOVE THIS ADDITIONAL CHECK - if (mNumBones && mBones) { - for (unsigned int a = 0; a < mNumBones; a++) { - if (mBones[a]) { - delete mBones[a]; - } - } - delete[] mBones; - } - - if (mNumAnimMeshes && mAnimMeshes) { - for (unsigned int a = 0; a < mNumAnimMeshes; a++) { - delete mAnimMeshes[a]; - } - delete[] mAnimMeshes; - } - - delete[] mFaces; - } - - //! Check whether the mesh contains positions. Provided no special - //! scene flags are set, this will always be true - bool HasPositions() const { return mVertices != nullptr && mNumVertices > 0; } - - //! Check whether the mesh contains faces. If no special scene flags - //! are set this should always return true - bool HasFaces() const { return mFaces != nullptr && mNumFaces > 0; } - - //! Check whether the mesh contains normal vectors - bool HasNormals() const { return mNormals != nullptr && mNumVertices > 0; } - - //! Check whether the mesh contains tangent and bitangent vectors - //! It is not possible that it contains tangents and no bitangents - //! (or the other way round). The existence of one of them - //! implies that the second is there, too. - bool HasTangentsAndBitangents() const { return mTangents != nullptr && mBitangents != nullptr && mNumVertices > 0; } - - //! Check whether the mesh contains a vertex color set - //! \param pIndex Index of the vertex color set - bool HasVertexColors(unsigned int pIndex) const { - if (pIndex >= AI_MAX_NUMBER_OF_COLOR_SETS) { - return false; - } else { - return mColors[pIndex] != nullptr && mNumVertices > 0; - } - } - - //! Check whether the mesh contains a texture coordinate set - //! \param pIndex Index of the texture coordinates set - bool HasTextureCoords(unsigned int pIndex) const { - if (pIndex >= AI_MAX_NUMBER_OF_TEXTURECOORDS) { - return false; - } else { - return mTextureCoords[pIndex] != nullptr && mNumVertices > 0; - } - } - - //! Get the number of UV channels the mesh contains - unsigned int GetNumUVChannels() const { - unsigned int n(0); - while (n < AI_MAX_NUMBER_OF_TEXTURECOORDS && mTextureCoords[n]) { - ++n; - } - - return n; - } - - //! Get the number of vertex color channels the mesh contains - unsigned int GetNumColorChannels() const { - unsigned int n(0); - while (n < AI_MAX_NUMBER_OF_COLOR_SETS && mColors[n]) { - ++n; - } - return n; - } - - //! Check whether the mesh contains bones - bool HasBones() const { - return mBones != nullptr && mNumBones > 0; - } - - //! Check whether the mesh contains a texture coordinate set name - //! \param pIndex Index of the texture coordinates set - bool HasTextureCoordsName(unsigned int pIndex) const { - if (mTextureCoordsNames == nullptr || pIndex >= AI_MAX_NUMBER_OF_TEXTURECOORDS) { - return false; - } - return mTextureCoordsNames[pIndex] != nullptr; - } - - //! Set a texture coordinate set name - //! \param pIndex Index of the texture coordinates set - //! \param texCoordsName name of the texture coordinate set - void SetTextureCoordsName(unsigned int pIndex, const aiString &texCoordsName) { - if (pIndex >= AI_MAX_NUMBER_OF_TEXTURECOORDS) { - return; - } - - if (mTextureCoordsNames == nullptr) { - // Construct and null-init array - mTextureCoordsNames = new aiString *[AI_MAX_NUMBER_OF_TEXTURECOORDS] {}; - } - - if (texCoordsName.length == 0) { - delete mTextureCoordsNames[pIndex]; - mTextureCoordsNames[pIndex] = nullptr; - return; - } - - if (mTextureCoordsNames[pIndex] == nullptr) { - mTextureCoordsNames[pIndex] = new aiString(texCoordsName); - return; - } - - *mTextureCoordsNames[pIndex] = texCoordsName; - } - - //! Get a texture coordinate set name - //! \param pIndex Index of the texture coordinates set - const aiString *GetTextureCoordsName(unsigned int pIndex) const { - if (mTextureCoordsNames == nullptr || pIndex >= AI_MAX_NUMBER_OF_TEXTURECOORDS) { - return nullptr; - } - - return mTextureCoordsNames[pIndex]; - } - -#endif // __cplusplus -}; - -#ifdef __cplusplus -} -#endif //! extern "C" -#endif // AI_MESH_H_INC |