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/** @file aiConfig.h
* @brief Defines constants for configurable properties for the library
*
* Typically these properties are set via
* #Assimp::Importer::SetPropertyFloat,
* #Assimp::Importer::SetPropertyInteger or
* #Assimp::Importer::SetPropertyString,
* depending on the data type of a property. All properties have a
* default value. See the doc for the mentioned methods for more details.
*
*
* The corresponding functions for use with the plain-c API are:
* #aiSetImportPropertyInteger,
* #aiSetImportPropertyFloat,
* #aiSetImportPropertyString
*/
#ifndef INCLUDED_AI_CONFIG_H
#define INCLUDED_AI_CONFIG_H
// ###########################################################################
// POST PROCESSING SETTINGS
// Various stuff to fine-tune the behavior of a specific post processing step.
// ###########################################################################
// ---------------------------------------------------------------------------
/** @brief Specifies the maximum angle that may be between two vertex tangents
* that their tangents and bitangents are smoothed.
*
* This applies to the CalcTangentSpace-Step. The angle is specified
* in degrees, so 180 is PI. The default value is
* 45 degrees. The maximum value is 175.
* Property type: float.
*/
#define AI_CONFIG_PP_CT_MAX_SMOOTHING_ANGLE \
"PP_CT_MAX_SMOOTHING_ANGLE"
// ---------------------------------------------------------------------------
/** @brief 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 GenSmoothNormals-Step. The angle is specified
* in degrees, so 180 is PI. 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 #AI_CONFIG_FAVOUR_SPEED flag is set but
* the output quality may be reduced.
*/
#define AI_CONFIG_PP_GSN_MAX_SMOOTHING_ANGLE \
"PP_GSN_MAX_SMOOTHING_ANGLE"
// ---------------------------------------------------------------------------
/** @brief 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.
*/
#define AI_CONFIG_IMPORT_MDL_COLORMAP \
"IMPORT_MDL_COLORMAP"
// ---------------------------------------------------------------------------
/** @brief Configures the #aiProcess_RemoveRedundantMaterials 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 *single*
* quotation marks. For example:
* "keep-me and_me_to anotherMaterialToBeKept \'name with 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.
* Property type: String. Default value: n/a
* @note Linefeeds, tabs or carriage returns are treated as whitespace.
* Material names are case sensitive.
*/
#define AI_CONFIG_PP_RRM_EXCLUDE_LIST \
"PP_RRM_EXCLUDE_LIST"
// ---------------------------------------------------------------------------
/** @brief Configures the #aiProcess_PretransformVertices step to
* keep the scene hierarchy. Meshes are moved to worldspace, but
* no optimization is performed (read: meshes with equal materials are not
* joined. The total number of meshes won't 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.
* Property type: integer (0: false; !0: true). Default value: false.
*/
#define AI_CONFIG_PP_PTV_KEEP_HIERARCHY \
"PP_PTV_KEEP_HIERARCHY"
// ---------------------------------------------------------------------------
/** @brief Configures the #aiProcess_PretransformVertices 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*/
#define AI_CONFIG_PP_PTV_NORMALIZE \
"PP_PTV_NORMALIZE"
// ---------------------------------------------------------------------------
/** @brief Configures the #aiProcess_FindDegenerates 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
* #aiProcess_FindDegenerates step for a detailed example of the various ways
* to get rid of these lines and points if you don't want them.
* Property type: integer (0: false; !0: true). Default value: false.
*/
#define AI_CONFIG_PP_FD_REMOVE \
"PP_FD_REMOVE"
// ---------------------------------------------------------------------------
/** @brief Configures the #aiProcess_OptimizeGraph 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 *single*
* quotation marks. For example:
* "keep-me and_me_to anotherNodeToBeKept \'name with 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.
* Property type: String. Default value: n/a
* @note Linefeeds, tabs or carriage returns are treated as whitespace.
* Node names are case sensitive.
*/
#define AI_CONFIG_PP_OG_EXCLUDE_LIST \
"PP_OG_EXCLUDE_LIST"
// ---------------------------------------------------------------------------
/** @brief Set the maximum number of triangles in a mesh.
*
* This is used by the "SplitLargeMeshes" PostProcess-Step to determine
* whether a mesh must be split or not.
* @note The default value is AI_SLM_DEFAULT_MAX_TRIANGLES
* Property type: integer.
*/
#define AI_CONFIG_PP_SLM_TRIANGLE_LIMIT \
"PP_SLM_TRIANGLE_LIMIT"
// default value for AI_CONFIG_PP_SLM_TRIANGLE_LIMIT
#if (!defined AI_SLM_DEFAULT_MAX_TRIANGLES)
# define AI_SLM_DEFAULT_MAX_TRIANGLES 1000000
#endif
// ---------------------------------------------------------------------------
/** @brief Set the maximum number of vertices in a mesh.
*
* This is used by the "SplitLargeMeshes" PostProcess-Step to determine
* whether a mesh must be split or not.
* @note The default value is AI_SLM_DEFAULT_MAX_VERTICES
* Property type: integer.
*/
#define AI_CONFIG_PP_SLM_VERTEX_LIMIT \
"PP_SLM_VERTEX_LIMIT"
// default value for AI_CONFIG_PP_SLM_VERTEX_LIMIT
#if (!defined AI_SLM_DEFAULT_MAX_VERTICES)
# define AI_SLM_DEFAULT_MAX_VERTICES 1000000
#endif
// ---------------------------------------------------------------------------
/** @brief Set the maximum number of bones affecting a single vertex
*
* This is used by the #aiProcess_LimitBoneWeights PostProcess-Step.
* @note The default value is AI_LBW_MAX_WEIGHTS
* Property type: integer.*/
#define AI_CONFIG_PP_LBW_MAX_WEIGHTS \
"PP_LBW_MAX_WEIGHTS"
// default value for AI_CONFIG_PP_LBW_MAX_WEIGHTS
#if (!defined AI_LMW_MAX_WEIGHTS)
# define AI_LMW_MAX_WEIGHTS 0x4
#endif // !! AI_LMW_MAX_WEIGHTS
/** @brief Default value for the #AI_CONFIG_PP_ICL_PTCACHE_SIZE property
*/
#ifndef PP_ICL_PTCACHE_SIZE
# define PP_ICL_PTCACHE_SIZE 12
#endif
// ---------------------------------------------------------------------------
/** @brief Set the size of the post-transform vertex cache to optimize the
* vertices for. This configures the #aiProcess_ImproveCacheLocality 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.
* @note The default value is #PP_ICL_PTCACHE_SIZE. That results in slight
* performance improvements for most nVidia/AMD cards since 2002.
* Property type: integer.
*/
#define AI_CONFIG_PP_ICL_PTCACHE_SIZE "PP_ICL_PTCACHE_SIZE"
// ---------------------------------------------------------------------------
/** @brief Enumerates components of the aiScene and aiMesh data structures
* that can be excluded from the import using the #aiPrpcess_RemoveComponent step.
*
* See the documentation to #aiProcess_RemoveComponent for more details.
*/
enum aiComponent
{
/** Normal vectors */
aiComponent_NORMALS = 0x2u,
/** Tangents and bitangents go always together ... */
aiComponent_TANGENTS_AND_BITANGENTS = 0x4u,
/** ALL color sets
* Use aiComponent_COLORn(N) to specify the N'th set */
aiComponent_COLORS = 0x8,
/** ALL texture UV sets
* aiComponent_TEXCOORDn(N) to specify the N'th set */
aiComponent_TEXCOORDS = 0x10,
/** Removes all bone weights from all meshes.
* The scenegraph nodes corresponding to the bones are NOT removed.
* use the #aiProcess_OptimizeGraph step to do this */
aiComponent_BONEWEIGHTS = 0x20,
/** Removes all node animations (aiScene::mAnimations).
* The corresponding scenegraph nodes are NOT removed.
* use the #aiProcess_OptimizeGraph step to do this */
aiComponent_ANIMATIONS = 0x40,
/** Removes all embedded textures (aiScene::mTextures) */
aiComponent_TEXTURES = 0x80,
/** Removes all light sources (aiScene::mLights).
* The corresponding scenegraph nodes are NOT removed.
* use the #aiProcess_OptimizeGraph step to do this */
aiComponent_LIGHTS = 0x100,
/** Removes all light sources (aiScene::mCameras).
* The corresponding scenegraph nodes are NOT removed.
* use the #aiProcess_OptimizeGraph step to do this */
aiComponent_CAMERAS = 0x200,
/** Removes all meshes (aiScene::mMeshes). */
aiComponent_MESHES = 0x400,
/** Removes all materials. One default material will
* be generated, so aiScene::mNumMaterials will be 1. */
aiComponent_MATERIALS = 0x800,
/** This value is not used. It is just there to force the
* compiler to map this enum to a 32 Bit integer. */
_aiComponent_Force32Bit = 0x9fffffff
};
// Remove a specific color channel 'n'
#define aiComponent_COLORSn(n) (1u << (n+20u))
// Remove a specific UV channel 'n'
#define aiComponent_TEXCOORDSn(n) (1u << (n+25u))
// ---------------------------------------------------------------------------
/** @brief Input parameter to the #aiProcess_RemoveComponent step:
* Specifies the parts of the data structure to be removed.
*
* See the documentation to this step for further details. The property
* is expected to be an integer, a bitwise combination of the
* #aiComponent flags defined above in this header. The default
* value is 0. Important: if no valid mesh is remaining after the
* step has been executed (e.g you thought it was funny to specify ALL
* of the flags defined above) the import FAILS. Mainly because there is
* no data to work on anymore ...
*/
#define AI_CONFIG_PP_RVC_FLAGS \
"PP_RVC_FLAGS"
// ---------------------------------------------------------------------------
/** @brief Input parameter to the #aiProcess_SortByPType step:
* Specifies which primitive types are removed by the step.
*
* This is a bitwise combination of the aiPrimitiveType flags.
* Specifying all of them is illegal, of course. A typical use would
* be to exclude all line and point meshes from the import. This
* is an integer property, its default value is 0.
*/
#define AI_CONFIG_PP_SBP_REMOVE \
"PP_SBP_REMOVE"
// ---------------------------------------------------------------------------
/** @brief Input parameter to the #aiProcess_FindInvalidData 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. The default value is 0.f - comparisons are exact then.
*/
#define AI_CONFIG_PP_FID_ANIM_ACCURACY \
"PP_FID_ANIM_ACCURACY"
// TransformUVCoords evaluates UV scalings
#define AI_UVTRAFO_SCALING 0x1
// TransformUVCoords evaluates UV rotations
#define AI_UVTRAFO_ROTATION 0x2
// TransformUVCoords evaluates UV translation
#define AI_UVTRAFO_TRANSLATION 0x4
// Everything baked together -> default value
#define AI_UVTRAFO_ALL (AI_UVTRAFO_SCALING | AI_UVTRAFO_ROTATION | AI_UVTRAFO_TRANSLATION)
// ---------------------------------------------------------------------------
/** @brief Input parameter to the #aiProcess_TransformUVCoords step:
* Specifies which UV transformations are evaluated.
*
* This is a bitwise combination of the AI_UVTRAFO_XXX flags (integer
* property, of course). By default all transformations are enabled
* (AI_UVTRAFO_ALL).
*/
#define AI_CONFIG_PP_TUV_EVALUATE \
"PP_TUV_EVALUATE"
// ---------------------------------------------------------------------------
/** @brief 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.
* This property is expected to be an integer, != 0 stands for true.
* The default value is 0.
*/
#define AI_CONFIG_FAVOUR_SPEED \
"FAVOUR_SPEED"
// ###########################################################################
// IMPORTER SETTINGS
// Various stuff to fine-tune the behaviour of a specific importer plugin.
// ###########################################################################
// ---------------------------------------------------------------------------
/** @brief 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.
* By default this is the first frame.
* \note The default value is 0. 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).
* Property type: integer.
*/
#define AI_CONFIG_IMPORT_GLOBAL_KEYFRAME "IMPORT_GLOBAL_KEYFRAME"
#define AI_CONFIG_IMPORT_MD3_KEYFRAME "IMPORT_MD3_KEYFRAME"
#define AI_CONFIG_IMPORT_MD2_KEYFRAME "IMPORT_MD2_KEYFRAME"
#define AI_CONFIG_IMPORT_MDL_KEYFRAME "IMPORT_MDL_KEYFRAME"
#define AI_CONFIG_IMPORT_MDC_KEYFRAME "IMPORT_MDC_KEYFRAME"
#define AI_CONFIG_IMPORT_SMD_KEYFRAME "IMPORT_SMD_KEYFRAME"
#define AI_CONFIG_IMPORT_UNREAL_KEYFRAME "IMPORT_UNREAL_KEYFRAME"
// ---------------------------------------------------------------------------
/** @brief Configures the AC loader to collect all surfaces which have the
* "Backface cull" flag set in separate meshes.
*
* Property type: integer (0: false; !0: true). Default value: true.
*/
#define AI_CONFIG_IMPORT_AC_SEPARATE_BFCULL \
"IMPORT_AC_SEPARATE_BFCULL"
// ---------------------------------------------------------------------------
/** @brief Configures the UNREAL 3D loader to separate faces with different
* surface flags (e.g. two-sided vs. single-sided).
*
* Property type: integer (0: false; !0: true). Default value: true.
*/
#define AI_CONFIG_IMPORT_UNREAL_HANDLE_FLAGS \
"UNREAL_HANDLE_FLAGS"
// ---------------------------------------------------------------------------
/** @brief 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.
* Property type: integer (0: false; !0: true). Default value: false.
*/
#define AI_CONFIG_IMPORT_TER_MAKE_UVS \
"IMPORT_TER_MAKE_UVS"
// ---------------------------------------------------------------------------
/** @brief 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).
* Property type: integer (0: false; !0: true). Default value: true.
*/
#define AI_CONFIG_IMPORT_ASE_RECONSTRUCT_NORMALS \
"IMPORT_ASE_RECONSTRUCT_NORMALS"
// ---------------------------------------------------------------------------
/** @brief Configures the M3D loader to process multi-part player models.
*
* These models usually consist of 3 files, lower.md3, upper.md3 and
* head.md3. If this property is set to true, Assimp will try to load and
* combine all three files if one of them is loaded.
* Property type: integer (0: false; !0: true). Default value: true.
*/
#define AI_CONFIG_IMPORT_MD3_HANDLE_MULTIPART \
"IMPORT_MD3_HANDLE_MULTIPART"
// ---------------------------------------------------------------------------
/** @brief Tells the MD3 loader which skin files to load.
*
* When loading MD3 files, Assimp checks whether a file
* _.skin is existing. These files are used by
* Quake III to be able to assign different skins (e.g. red and blue team)
* to models. 'default', 'red', 'blue' are typical skin names.
* Property type: String. Default value: "default".
*/
#define AI_CONFIG_IMPORT_MD3_SKIN_NAME \
"IMPORT_MD3_SKIN_NAME"
// ---------------------------------------------------------------------------
/** @brief 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
* /models///.md3 is
* loaded, the library tries to locate the corresponding shader file in
* /scripts/.shader. 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
* /.shader first, /.shader
* is the fallback file. Note that should have a terminal (back)slash.
* Property type: String. Default value: n/a.
*/
#define AI_CONFIG_IMPORT_MD3_SHADER_SRC \
"IMPORT_MD3_SHADER_SRC"
// ---------------------------------------------------------------------------
/** @brief 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.
* Property type: Integer. Default value: all layers are loaded.
*/
#define AI_CONFIG_IMPORT_LWO_ONE_LAYER_ONLY \
"IMPORT_LWO_ONE_LAYER_ONLY"
// ---------------------------------------------------------------------------
/** @brief 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.
*
* Property type: integer (0: false; !0: true). Default value: false.
*/
#define AI_CONFIG_IMPORT_MD5_NO_ANIM_AUTOLOAD \
"IMPORT_MD5_NO_ANIM_AUTOLOAD"
// ---------------------------------------------------------------------------
/** @brief Defines the begin of the time range for which the LWS loader
* evaluates animations and computes aiNodeAnim'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)
* Property type: Integer. Default value: taken from file.
*
* @see AI_CONFIG_IMPORT_LWS_ANIM_END - end of the imported time range
*/
#define AI_CONFIG_IMPORT_LWS_ANIM_START \
"IMPORT_LWS_ANIM_START"
#define AI_CONFIG_IMPORT_LWS_ANIM_END \
"IMPORT_LWS_ANIM_END"
// ---------------------------------------------------------------------------
/** @brief 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.
* Property type: integer. Default value: 100
*/
#define AI_CONFIG_IMPORT_IRR_ANIM_FPS \
"IMPORT_IRR_ANIM_FPS"
// ---------------------------------------------------------------------------
/** Ogre Importer will try to load this Materialfile
* Ogre Mehs contain only the MaterialName, not the MaterialFile. 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.
*/
#define AI_CONFIG_IMPORT_OGRE_MATERIAL_FILE "IMPORT_OGRE_MATERIAL_FILE"
#endif // !! AI_CONFIG_H_INC