move 3rd-party librarys into libs/ and add built-in honeysuckle

1 files changed, 1135 insertions, 0 deletions

diff --git a/libs/assimp/port/PyAssimp/pyassimp/structs.py b/libs/assimp/port/PyAssimp/pyassimp/structs.py
new file mode 100644
index 0000000..e1fba19
--- /dev/null
+++ b/libs/assimp/port/PyAssimp/pyassimp/structs.py
@@ -0,0 +1,1135 @@
+#-*- coding: utf-8 -*-
+
+from ctypes import POINTER, c_void_p, c_uint, c_char, c_float, Structure, c_double, c_ubyte, c_size_t, c_uint32
+
+
+class Vector2D(Structure):
+    """
+    See 'vector2.h' for details.
+    """
+
+
+    _fields_ = [
+            ("x", c_float),("y", c_float),
+        ]
+
+class Matrix3x3(Structure):
+    """
+    See 'matrix3x3.h' for details.
+    """
+
+
+    _fields_ = [
+            ("a1", c_float),("a2", c_float),("a3", c_float),
+            ("b1", c_float),("b2", c_float),("b3", c_float),
+            ("c1", c_float),("c2", c_float),("c3", c_float),
+        ]
+
+class Texel(Structure):
+    """
+    See 'texture.h' for details.
+    """
+
+    _fields_ = [
+            ("b", c_ubyte),("g", c_ubyte),("r", c_ubyte),("a", c_ubyte),
+        ]
+
+class Color4D(Structure):
+    """
+    See 'color4.h' for details.
+    """
+
+
+    _fields_ = [
+            #  Red, green, blue and alpha color values
+            ("r", c_float),("g", c_float),("b", c_float),("a", c_float),
+        ]
+
+class Plane(Structure):
+    """
+    See 'types.h' for details.
+    """
+
+    _fields_ = [
+            #  Plane equation
+            ("a", c_float),("b", c_float),("c", c_float),("d", c_float),
+        ]
+
+class Color3D(Structure):
+    """
+    See 'types.h' for details.
+    """
+
+    _fields_ = [
+            #  Red, green and blue color values
+            ("r", c_float),("g", c_float),("b", c_float),
+        ]
+
+class String(Structure):
+    """
+    See 'types.h' for details.
+    """
+
+    MAXLEN = 1024
+
+    _fields_ = [
+            # Binary length of the string excluding the terminal 0. This is NOT the
+            #  logical length of strings containing UTF-8 multibyte sequences! It's
+            #  the number of bytes from the beginning of the string to its end.
+            ("length", c_uint32),
+
+            # String buffer. Size limit is MAXLEN
+            ("data", c_char*MAXLEN),
+        ]
+
+class MaterialPropertyString(Structure):
+    """
+    See 'MaterialSystem.cpp' for details.
+
+    The size of length is truncated to 4 bytes on 64-bit platforms when used as a
+    material property (see MaterialSystem.cpp aiMaterial::AddProperty() for details).
+    """
+
+    MAXLEN = 1024
+
+    _fields_ = [
+            # Binary length of the string excluding the terminal 0. This is NOT the
+            #  logical length of strings containing UTF-8 multibyte sequences! It's
+            #  the number of bytes from the beginning of the string to its end.
+            ("length", c_uint32),
+
+            # String buffer. Size limit is MAXLEN
+            ("data", c_char*MAXLEN),
+        ]
+
+class MemoryInfo(Structure):
+    """
+    See 'types.h' for details.
+    """
+
+    _fields_ = [
+            # Storage allocated for texture data
+            ("textures", c_uint),
+
+            # Storage allocated for material data
+            ("materials", c_uint),
+
+            # Storage allocated for mesh data
+            ("meshes", c_uint),
+
+            # Storage allocated for node data
+            ("nodes", c_uint),
+
+            # Storage allocated for animation data
+            ("animations", c_uint),
+
+            # Storage allocated for camera data
+            ("cameras", c_uint),
+
+            # Storage allocated for light data
+            ("lights", c_uint),
+
+            # Total storage allocated for the full import.
+            ("total", c_uint),
+        ]
+
+class Quaternion(Structure):
+    """
+    See 'quaternion.h' for details.
+    """
+
+
+    _fields_ = [
+            #  w,x,y,z components of the quaternion
+            ("w", c_float),("x", c_float),("y", c_float),("z", c_float),
+        ]
+
+class Face(Structure):
+    """
+    See 'mesh.h' for details.
+    """
+
+    _fields_ = [
+            #  Number of indices defining this face.
+            #  The maximum value for this member is
+            #AI_MAX_FACE_INDICES.
+            ("mNumIndices", c_uint),
+
+            #  Pointer to the indices array. Size of the array is given in numIndices.
+            ("mIndices", POINTER(c_uint)),
+        ]
+
+class VertexWeight(Structure):
+    """
+    See 'mesh.h' for details.
+    """
+
+    _fields_ = [
+            #  Index of the vertex which is influenced by the bone.
+            ("mVertexId", c_uint),
+
+            #  The strength of the influence in the range (0...1).
+            #  The influence from all bones at one vertex amounts to 1.
+            ("mWeight", c_float),
+        ]
+
+class Matrix4x4(Structure):
+    """
+    See 'matrix4x4.h' for details.
+    """
+
+
+    _fields_ = [
+            ("a1", c_float),("a2", c_float),("a3", c_float),("a4", c_float),
+            ("b1", c_float),("b2", c_float),("b3", c_float),("b4", c_float),
+            ("c1", c_float),("c2", c_float),("c3", c_float),("c4", c_float),
+            ("d1", c_float),("d2", c_float),("d3", c_float),("d4", c_float),
+        ]
+
+class Vector3D(Structure):
+    """
+    See 'vector3.h' for details.
+    """
+
+
+    _fields_ = [
+            ("x", c_float),("y", c_float),("z", c_float),
+        ]
+
+class MeshKey(Structure):
+    """
+    See 'anim.h' for details.
+    """
+
+    _fields_ = [
+            # The time of this key
+            ("mTime", c_double),
+
+            # Index into the aiMesh::mAnimMeshes array of the
+            #  mesh corresponding to the
+            #aiMeshAnim hosting this
+            #  key frame. The referenced anim mesh is evaluated
+            #  according to the rules defined in the docs for
+            #aiAnimMesh.
+            ("mValue", c_uint),
+        ]
+
+class MetadataEntry(Structure):
+    """
+    See 'metadata.h' for details
+    """
+    AI_BOOL       = 0
+    AI_INT32      = 1
+    AI_UINT64     = 2
+    AI_FLOAT      = 3
+    AI_DOUBLE     = 4
+    AI_AISTRING   = 5
+    AI_AIVECTOR3D = 6
+    AI_META_MAX   = 7
+    _fields_ = [
+            # The type field uniquely identifies the underlying type of the data field
+            ("mType", c_uint),
+            ("mData", c_void_p),
+    ]
+
+class Metadata(Structure):
+    """
+    See 'metadata.h' for details
+    """
+    _fields_ = [
+            # Length of the mKeys and mValues arrays, respectively
+            ("mNumProperties", c_uint),
+
+            # Arrays of keys, may not be NULL. Entries in this array may not be NULL
+            # as well.
+            ("mKeys", POINTER(String)),
+
+            # Arrays of values, may not be NULL. Entries in this array may be NULL
+            # if the corresponding property key has no assigned value.
+            ("mValues", POINTER(MetadataEntry)),
+    ]
+
+class Node(Structure):
+    """
+    See 'scene.h' for details.
+    """
+
+
+Node._fields_ = [
+            # 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 anims are usually named.
+            # Multiple nodes may have the same name, but nodes which are accessed
+            # by bones (see
+            #aiBone and
+            #aiMesh::mBones) *must* be unique.
+            # Cameras and lights are assigned to a specific node name - if there
+            # are multiple nodes with this name, they're assigned to each of them.
+            # <br>
+            # There are no limitations regarding the characters contained in
+            # this text. You should be able to handle stuff like whitespace, tabs,
+            # linefeeds, quotation marks, ampersands, ... .
+            ("mName", String),
+
+            # The transformation relative to the node's parent.
+            ("mTransformation", Matrix4x4),
+
+            # Parent node. NULL if this node is the root node.
+            ("mParent", POINTER(Node)),
+
+            # The number of child nodes of this node.
+            ("mNumChildren", c_uint),
+
+            # The child nodes of this node. NULL if mNumChildren is 0.
+            ("mChildren", POINTER(POINTER(Node))),
+
+            # The number of meshes of this node.
+            ("mNumMeshes", c_uint),
+
+            # The meshes of this node. Each entry is an index into the mesh
+            ("mMeshes", POINTER(c_uint)),
+
+            # Metadata associated with this node or NULL if there is no metadata.
+            # Whether any metadata is generated depends on the source file format.
+            ("mMetadata", POINTER(Metadata)),
+        ]
+
+class Light(Structure):
+    """
+    See 'light.h' for details.
+    """
+
+
+    _fields_ = [
+            # 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 scene
+            #  hierarchy and can be animated.
+            ("mName", String),
+
+            # The type of the light source.
+            # aiLightSource_UNDEFINED is not a valid value for this member.
+            ("mType", c_uint),
+
+            # 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.
+            ("mPosition", Vector3D),
+
+            # 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.
+            ("mDirection", Vector3D),
+
+            # Up 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.
+            ("mUp", Vector3D),
+
+            # Constant light attenuation factor.
+            #  The intensity of the light source at a given distance 'd' from
+            #  the light's position is
+            #  @code
+            #  Atten = 1/( att0 + att1
+            # d + att2
+            # d*d)
+            #  @endcode
+            #  This member corresponds to the att0 variable in the equation.
+            #  Naturally undefined for directional lights.
+            ("mAttenuationConstant", c_float),
+
+            # Linear light attenuation factor.
+            #  The intensity of the light source at a given distance 'd' from
+            #  the light's position is
+            #  @code
+            #  Atten = 1/( att0 + att1
+            # d + att2
+            # d*d)
+            #  @endcode
+            #  This member corresponds to the att1 variable in the equation.
+            #  Naturally undefined for directional lights.
+            ("mAttenuationLinear", c_float),
+
+            # Quadratic light attenuation factor.
+            #  The intensity of the light source at a given distance 'd' from
+            #  the light's position is
+            #  @code
+            #  Atten = 1/( att0 + att1
+            # d + att2
+            # d*d)
+            #  @endcode
+            #  This member corresponds to the att2 variable in the equation.
+            #  Naturally undefined for directional lights.
+            ("mAttenuationQuadratic", c_float),
+
+            # 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.
+            ("mColorDiffuse", Color3D),
+
+            # 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.
+            ("mColorSpecular", Color3D),
+
+            # 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.
+            ("mColorAmbient", Color3D),
+
+            # 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.
+            ("mAngleInnerCone", c_float),
+
+            # 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.
+            ("mAngleOuterCone", c_float),
+
+            # Size of area light source.
+            ("mSize", Vector2D),
+        ]
+
+class Texture(Structure):
+    """
+    See 'texture.h' for details.
+    """
+
+
+    _fields_ = [
+            # Width of the texture, in pixels
+            # If mHeight is zero the texture is compressed in a format
+            # like JPEG. In this case mWidth specifies the size of the
+            # memory area pcData is pointing to, in bytes.
+            ("mWidth", c_uint),
+
+            # Height of the texture, in pixels
+            # If this value is zero, pcData points to an compressed texture
+            # in any format (e.g. JPEG).
+            ("mHeight", c_uint),
+
+            # A hint from the loader to make it easier for applications
+            # to determine the type of embedded textures.
+            #
+            # If mHeight != 0 this member is show how data is packed. Hint will consist of
+            # two parts: channel order and channel bitness (count of the bits for every
+            # color channel). For simple parsing by the viewer it's better to not omit
+            # absent color channel and just use 0 for bitness. For example:
+            # 1. Image contain RGBA and 8 bit per channel, achFormatHint == "rgba8888";
+            # 2. Image contain ARGB and 8 bit per channel, achFormatHint == "argb8888";
+            # 3. Image contain RGB and 5 bit for R and B channels and 6 bit for G channel,
+            #    achFormatHint == "rgba5650";
+            # 4. One color image with B channel and 1 bit for it, achFormatHint == "rgba0010";
+            # If mHeight == 0 then achFormatHint 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 character will always be '\\0'.
+            ("achFormatHint", c_char*9),
+
+            # Data of the texture.
+            # Points to an array of mWidth
+            # mHeight aiTexel's.
+            # The format of the texture data is always ARGB8888 to
+            # make the implementation for user of the library as easy
+            # as possible. If mHeight = 0 this is a pointer to a memory
+            # buffer of size mWidth containing the compressed texture
+            # data. Good luck, have fun!
+            ("pcData", POINTER(Texel)),
+
+            # Texture original filename
+            # Used to get the texture reference
+            ("mFilename", String),
+        ]
+
+class Ray(Structure):
+    """
+    See 'types.h' for details.
+    """
+
+    _fields_ = [
+            #  Position and direction of the ray
+            ("pos", Vector3D),("dir", Vector3D),
+        ]
+
+class UVTransform(Structure):
+    """
+    See 'material.h' for details.
+    """
+
+    _fields_ = [
+            # Translation on the u and v axes.
+            #  The default value is (0|0).
+            ("mTranslation", Vector2D),
+
+            # Scaling on the u and v axes.
+            #  The default value is (1|1).
+            ("mScaling", Vector2D),
+
+            # Rotation - in counter-clockwise direction.
+            #  The rotation angle is specified in radians. The
+            #  rotation center is 0.5f|0.5f. The default value
+            #  0.f.
+            ("mRotation", c_float),
+        ]
+
+class MaterialProperty(Structure):
+    """
+    See 'material.h' for details.
+    """
+
+    _fields_ = [
+            # Specifies the name of the property (key)
+            #  Keys are generally case insensitive.
+            ("mKey", String),
+
+            # Textures: Specifies their exact usage semantic.
+            # For non-texture properties, this member is always 0
+            # (or, better-said,
+            #aiTextureType_NONE).
+            ("mSemantic", c_uint),
+
+            # Textures: Specifies the index of the texture.
+            #  For non-texture properties, this member is always 0.
+            ("mIndex", c_uint),
+
+            # Size of the buffer mData is pointing to, in bytes.
+            #  This value may not be 0.
+            ("mDataLength", c_uint),
+
+            # 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.
+            # (It's probably a hacky solution, but it works.)
+            ("mType", c_uint),
+
+            # Binary buffer to hold the property's value.
+            # The size of the buffer is always mDataLength.
+            ("mData", POINTER(c_char)),
+        ]
+
+class Material(Structure):
+    """
+    See 'material.h' for details.
+    """
+
+    _fields_ = [
+            # List of all material properties loaded.
+            ("mProperties", POINTER(POINTER(MaterialProperty))),
+
+            # Number of properties in the data base
+            ("mNumProperties", c_uint),
+
+            # Storage allocated
+            ("mNumAllocated", c_uint),
+        ]
+
+class Bone(Structure):
+    """
+    See 'mesh.h' for details.
+    """
+
+    _fields_ = [
+            #  The name of the bone.
+            ("mName", String),
+
+            #  The number of vertices affected by this bone
+            #  The maximum value for this member is
+            #AI_MAX_BONE_WEIGHTS.
+            ("mNumWeights", c_uint),
+
+            #  The vertices affected by this bone
+            ("mWeights", POINTER(VertexWeight)),
+
+            #  Matrix that transforms from mesh space to bone space in bind pose
+            ("mOffsetMatrix", Matrix4x4),
+        ]
+
+
+class AnimMesh(Structure):
+    """
+    See 'mesh.h' for details.
+    """
+
+    AI_MAX_NUMBER_OF_TEXTURECOORDS = 0x8
+    AI_MAX_NUMBER_OF_COLOR_SETS = 0x8
+
+    _fields_ = [
+            #  Anim Mesh name
+            ("mName", String),
+
+            # 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)
+            ("mVertices", POINTER(Vector3D)),
+
+            # Replacement for aiMesh::mNormals.
+            ("mNormals", POINTER(Vector3D)),
+
+            # Replacement for aiMesh::mTangents.
+            ("mTangents", POINTER(Vector3D)),
+
+            # Replacement for aiMesh::mBitangents.
+            ("mBitangents", POINTER(Vector3D)),
+
+            # Replacement for aiMesh::mColors
+            ("mColors", POINTER(Color4D) * AI_MAX_NUMBER_OF_COLOR_SETS),
+
+            # Replacement for aiMesh::mTextureCoords
+            ("mTextureCoords", POINTER(Vector3D) * 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.
+            ("mNumVertices", c_uint),
+
+            # Weight of the AnimMesh.
+            ("mWeight", c_float),
+        ]
+
+
+class Mesh(Structure):
+    """
+    See 'mesh.h' for details.
+    """
+
+    AI_MAX_FACE_INDICES = 0x7fff
+    AI_MAX_BONE_WEIGHTS = 0x7fffffff
+    AI_MAX_VERTICES = 0x7fffffff
+    AI_MAX_FACES = 0x7fffffff
+    AI_MAX_NUMBER_OF_COLOR_SETS = 0x8
+    AI_MAX_NUMBER_OF_TEXTURECOORDS = 0x8
+
+    _fields_ = [ # 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.
+            ("mPrimitiveTypes", c_uint),
+
+            # 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.
+            ("mNumVertices", c_uint),
+
+            # 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.
+            ("mNumFaces", c_uint),
+
+            # Vertex positions.
+            # This array is always present in a mesh. The array is
+            # mNumVertices in size.
+            ("mVertices", POINTER(Vector3D)),
+
+            # Vertex normals.
+            # The array contains normalized vectors, NULL 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.
+            ("mNormals", POINTER(Vector3D)),
+
+            # 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 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 (the bitangent is just the cross product of
+            # tangent and normal vectors).
+            ("mTangents", POINTER(Vector3D)),
+
+            # 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 mNumVertices in size.
+            # @note If the mesh contains tangents, it automatically also contains
+            # bitangents.
+            ("mBitangents", POINTER(Vector3D)),
+
+            # Vertex color sets.
+            # A mesh may contain 0 to
+            #AI_MAX_NUMBER_OF_COLOR_SETS vertex
+            # colors per vertex. NULL if not present. Each array is
+            # mNumVertices in size if present.
+            ("mColors", POINTER(Color4D)*AI_MAX_NUMBER_OF_COLOR_SETS),
+
+            # Vertex texture coords, also known as UV channels.
+            # A mesh may contain 0 to AI_MAX_NUMBER_OF_TEXTURECOORDS per
+            # vertex. NULL if not present. The array is mNumVertices in size.
+            ("mTextureCoords", POINTER(Vector3D)*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 coords are not supported
+            ("mNumUVComponents", c_uint*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.
+            ("mFaces", POINTER(Face)),
+
+            # The number of bones this mesh contains.
+            # Can be 0, in which case the mBones array is NULL.
+            ("mNumBones", c_uint),
+
+            # 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.
+            ("mBones", POINTER(POINTER(Bone))),
+
+            # 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.
+            ("mMaterialIndex", c_uint),
+
+            # 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.
+            ("mName", String),
+
+            # The number of attachment meshes. Note! Currently only works with Collada loader.
+            ("mNumAnimMeshes", c_uint),
+
+            # 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.
+            ("mAnimMeshes", POINTER(POINTER(AnimMesh))),
+
+            # Method of morphing when animeshes are specified.
+            ("mMethod", c_uint),
+
+        ]
+
+class Camera(Structure):
+    """
+    See 'camera.h' for details.
+    """
+
+
+    _fields_ = [
+            # 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.
+            ("mName", String),
+
+            # Position of the camera relative to the coordinate space
+            #  defined by the corresponding node.
+            #  The default value is 0|0|0.
+            ("mPosition", Vector3D),
+
+            # '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.
+            ("mUp", Vector3D),
+
+            # 'LookAt' - 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.
+            ("mLookAt", Vector3D),
+
+            # 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 1/4PI.
+            ("mHorizontalFOV", c_float),
+
+            # 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.
+            ("mClipPlaneNear", c_float),
+
+            # 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 default value is 1000.f. 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.
+            ("mClipPlaneFar", c_float),
+
+            # 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.
+            ("mAspect", c_float),
+        ]
+
+class VectorKey(Structure):
+    """
+    See 'anim.h' for details.
+    """
+
+    _fields_ = [
+            # The time of this key
+            ("mTime", c_double),
+
+            # The value of this key
+            ("mValue", Vector3D),
+        ]
+
+class QuatKey(Structure):
+    """
+    See 'anim.h' for details.
+    """
+
+    _fields_ = [
+            # The time of this key
+            ("mTime", c_double),
+
+            # The value of this key
+            ("mValue", Quaternion),
+        ]
+
+class MeshMorphKey(Structure):
+    """
+    See 'anim.h' for details.
+    """
+
+    _fields_ = [
+            # The time of this key
+            ("mTime", c_double),
+
+            # The values and weights at the time of this key
+            ("mValues", POINTER(c_uint)),
+            ("mWeights", POINTER(c_double)),
+
+            # The number of values and weights
+            ("mNumValuesAndWeights", c_uint),
+
+        ]
+
+class NodeAnim(Structure):
+    """
+    See 'anim.h' for details.
+    """
+
+    _fields_ = [
+            # The name of the node affected by this animation. The node
+            #  must exist and it must be unique.
+            ("mNodeName", String),
+
+            # The number of position keys
+            ("mNumPositionKeys", c_uint),
+
+            # The position keys of this animation channel. Positions are
+            # specified as 3D vector. The array is mNumPositionKeys in size.
+            # If there are position keys, there will also be at least one
+            # scaling and one rotation key.
+            ("mPositionKeys", POINTER(VectorKey)),
+
+            # The number of rotation keys
+            ("mNumRotationKeys", c_uint),
+
+            # The rotation keys of this animation channel. Rotations are
+            #  given as quaternions,  which are 4D vectors. The array is
+            #  mNumRotationKeys in size.
+            # If there are rotation keys, there will also be at least one
+            # scaling and one position key.
+            ("mRotationKeys", POINTER(QuatKey)),
+
+            # The number of scaling keys
+            ("mNumScalingKeys", c_uint),
+
+            # The scaling keys of this animation channel. Scalings are
+            #  specified as 3D vector. The array is mNumScalingKeys in size.
+            # If there are scaling keys, there will also be at least one
+            # position and one rotation key.
+            ("mScalingKeys", POINTER(VectorKey)),
+
+            # Defines how the animation behaves before the first
+            #  key is encountered.
+            #  The default value is aiAnimBehaviour_DEFAULT (the original
+            #  transformation matrix of the affected node is used).
+            ("mPreState", c_uint),
+
+            # Defines how the animation behaves after the last
+            #  key was processed.
+            #  The default value is aiAnimBehaviour_DEFAULT (the original
+            #  transformation matrix of the affected node is taken).
+            ("mPostState", c_uint),
+        ]
+
+class MeshAnim(Structure):
+    """
+    See 'anim.h' for details.
+    """
+
+    _fields_ = [
+            # Name of the mesh to be animated. An empty string is not allowed,
+            #  animated meshes need to be named (not necessarily uniquely,
+            #  the name can basically serve as wild-card to select a group
+            #  of meshes with similar animation setup)
+            ("mName", String),
+
+            # Size of the #mKeys array. Must be 1, at least.
+            ("mNumKeys", c_uint),
+
+            # Key frames of the animation. May not be NULL.
+            ("mKeys", POINTER(MeshKey)),
+        ]
+
+class MeshMorphAnim(Structure):
+    """
+    See 'anim.h' for details.
+    """
+
+    _fields_ = [
+            # Name of the mesh to be animated. An empty string is not allowed,
+            # animated meshes need to be named (not necessarily uniquely,
+            # the name can basically serve as wildcard to select a group
+            # of meshes with similar animation setup)
+            ("mName", String),
+
+            # Size of the #mKeys array. Must be 1, at least.
+            ("mNumKeys", c_uint),
+
+            # Key frames of the animation. May not be NULL.
+            ("mKeys", POINTER(MeshMorphKey)),
+        ]
+
+
+class Animation(Structure):
+    """
+    See 'anim.h' for details.
+    """
+
+    _fields_ = [
+            # 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).
+            ("mName", String),
+
+            # Duration of the animation in ticks.
+            ("mDuration", c_double),
+
+            # Ticks per second. 0 if not specified in the imported file
+            ("mTicksPerSecond", c_double),
+
+            # The number of bone animation channels. Each channel affects
+            #  a single node.
+            ("mNumChannels", c_uint),
+
+            # The node animation channels. Each channel affects a single node.
+            #  The array is mNumChannels in size.
+            ("mChannels", POINTER(POINTER(NodeAnim))),
+
+            # The number of mesh animation channels. Each channel affects
+            #  a single mesh and defines vertex-based animation.
+            ("mNumMeshChannels", c_uint),
+
+            # The mesh animation channels. Each channel affects a single mesh.
+            #  The array is mNumMeshChannels in size.
+            ("mMeshChannels", POINTER(POINTER(MeshAnim))),
+
+            # The number of mesh animation channels. Each channel affects
+            # a single mesh and defines morphing animation.
+            ("mNumMorphMeshChannels", c_uint),
+
+            # The morph mesh animation channels. Each channel affects a single mesh.
+            # The array is mNumMorphMeshChannels in size.
+            ("mMorphMeshChannels", POINTER(POINTER(MeshMorphAnim))),
+
+        ]
+
+class ExportDataBlob(Structure):
+    """
+    See 'cexport.h' for details.
+
+    Note that the '_fields_' definition is outside the class to allow the 'next' field to be recursive
+    """
+    pass
+
+ExportDataBlob._fields_ = [
+            # Size of the data in bytes
+            ("size", c_size_t),
+
+            # The data.
+            ("data", c_void_p),
+
+            # Name of the blob. An empty string always
+            # indicates the first (and primary) blob,
+            # which contains the actual file data.
+            # Any other blobs are auxiliary files produced
+            # by exporters (i.e. material files). Existence
+            # of such files depends on the file format. Most
+            # formats don't split assets across multiple files.
+            #
+            # If used, blob names usually contain the file
+            # extension that should be used when writing
+            # the data to disc.
+            ("name", String),
+
+            # Pointer to the next blob in the chain or NULL if there is none.
+            ("next", POINTER(ExportDataBlob)),
+        ]
+
+
+class Scene(Structure):
+    """
+    See 'aiScene.h' for details.
+    """
+
+    AI_SCENE_FLAGS_INCOMPLETE = 0x1
+    AI_SCENE_FLAGS_VALIDATED = 0x2
+    AI_SCENE_FLAGS_VALIDATION_WARNING =  	0x4
+    AI_SCENE_FLAGS_NON_VERBOSE_FORMAT =  	0x8
+    AI_SCENE_FLAGS_TERRAIN = 0x10
+    AI_SCENE_FLAGS_ALLOW_SHARED = 0x20
+
+    _fields_ = [
+            # Any combination of the AI_SCENE_FLAGS_XXX flags. By default
+            # this value is 0, no flags are set. Most applications will
+            # want to reject all scenes with the AI_SCENE_FLAGS_INCOMPLETE
+            # bit set.
+            ("mFlags", c_uint),
+
+            # 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 content
+            # of the imported file.
+            ("mRootNode", POINTER(Node)),
+
+            # The number of meshes in the scene.
+            ("mNumMeshes", c_uint),
+
+            # The array of meshes.
+            # Use the indices given in the aiNode structure to access
+            # this array. The array is mNumMeshes in size. If the
+            # AI_SCENE_FLAGS_INCOMPLETE flag is not set there will always
+            # be at least ONE material.
+            ("mMeshes", POINTER(POINTER(Mesh))),
+
+            # The number of materials in the scene.
+            ("mNumMaterials", c_uint),
+
+            # The array of materials.
+            # Use the index given in each aiMesh structure to access this
+            # array. The array is mNumMaterials in size. If the
+            # AI_SCENE_FLAGS_INCOMPLETE flag is not set there will always
+            # be at least ONE material.
+            ("mMaterials", POINTER(POINTER(Material))),
+
+            # The number of animations in the scene.
+            ("mNumAnimations", c_uint),
+
+            # The array of animations.
+            # All animations imported from the given file are listed here.
+            # The array is mNumAnimations in size.
+            ("mAnimations", POINTER(POINTER(Animation))),
+
+            # The number of textures embedded into the file
+            ("mNumTextures", c_uint),
+
+            # The array of embedded textures.
+            # Not many file formats embed their textures into the file.
+            # An example is Quake's MDL format (which is also used by
+            # some GameStudio versions)
+            ("mTextures", POINTER(POINTER(Texture))),
+
+            # The number of light sources in the scene. Light sources
+            # are fully optional, in most cases this attribute will be 0
+            ("mNumLights", c_uint),
+
+            # The array of light sources.
+            # All light sources imported from the given file are
+            # listed here. The array is mNumLights in size.
+            ("mLights", POINTER(POINTER(Light))),
+
+            # The number of cameras in the scene. Cameras
+            # are fully optional, in most cases this attribute will be 0
+            ("mNumCameras", c_uint),
+
+            # The array of cameras.
+            # All cameras imported from the given file are listed here.
+            # The array is mNumCameras in size. The first camera in the
+            # array (if existing) is the default camera view into
+            # the scene.
+            ("mCameras", POINTER(POINTER(Camera))),
+
+            # This data contains global metadata which belongs to the scene like
+            # unit-conversions, versions, vendors or other model-specific data. This
+            # can be used to store format-specific metadata as well.
+            ("mMetadata", POINTER(Metadata)),
+
+            # Internal data, do not touch
+            ("mPrivate", POINTER(c_char)),
+        ]
+
+assimp_structs_as_tuple = (Matrix4x4,
+                           Matrix3x3,
+                           Vector2D,
+                           Vector3D,
+                           Color3D,
+                           Color4D,
+                           Quaternion,
+                           Plane,
+                           Texel)