Differential D16893 Diff 59975 source/blender/blenkernel/BKE_mesh_tangent.h

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source/blender/blenkernel/BKE_mesh_tangent.h

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	/**			/**
	* Compute simplified tangent space normals, i.e.			* Compute simplified tangent space normals, i.e.
	* tangent vector + sign of bi-tangent one, which combined with			* tangent vector + sign of bi-tangent one, which combined with
	* split normals can be used to recreate the full tangent space.			* split normals can be used to recreate the full tangent space.
	* NOTE: * The mesh should be made of only tris and quads!			* NOTE: * The mesh should be made of only tris and quads!
	*/			*/
	void BKE_mesh_calc_loop_tangent_single_ex(const float (*vert_positions)[3],			void BKE_mesh_calc_loop_tangent_single_ex(const float (*vert_positions)[3],
	int numVerts,			int numVerts,
	const struct MLoop *mloops,			const int *corner_verts,
	float (*r_looptangent)[4],			float (*r_looptangent)[4],
	const float (*loop_normals)[3],			const float (*loop_normals)[3],
	const float (*loopuv)[2],			const float (*loopuv)[2],
	int numLoops,			int numLoops,
	const struct MPoly *mpolys,			const struct MPoly *mpolys,
	int numPolys,			int numPolys,
	struct ReportList *reports);			struct ReportList *reports);
	/**			/**
	* Wrapper around BKE_mesh_calc_loop_tangent_single_ex, which takes care of most boilerplate code.			* Wrapper around BKE_mesh_calc_loop_tangent_single_ex, which takes care of most boilerplate code.
	* \note			* \note
	* - There must be a valid loop's CD_NORMALS available.			* - There must be a valid loop's CD_NORMALS available.
	* - The mesh should be made of only tris and quads!			* - The mesh should be made of only tris and quads!
	*/			*/
	void BKE_mesh_calc_loop_tangent_single(struct Mesh *mesh,			void BKE_mesh_calc_loop_tangent_single(struct Mesh *mesh,
	const char *uvmap,			const char *uvmap,
	float (*r_looptangents)[4],			float (*r_looptangents)[4],
	struct ReportList *reports);			struct ReportList *reports);

	/**			/**
	* See: #BKE_editmesh_loop_tangent_calc (matching logic).			* See: #BKE_editmesh_loop_tangent_calc (matching logic).
	*/			*/
	void BKE_mesh_calc_loop_tangent_ex(const float (*vert_positions)[3],			void BKE_mesh_calc_loop_tangent_ex(const float (*vert_positions)[3],
	const struct MPoly *mpoly,			const struct MPoly *mpoly,
	uint mpoly_len,			uint mpoly_len,
	const struct MLoop *mloop,			const int *corner_verts,
	const struct MLoopTri *looptri,			const struct MLoopTri *looptri,
	uint looptri_len,			uint looptri_len,

	struct CustomData *loopdata,			struct CustomData *loopdata,
	bool calc_active_tangent,			bool calc_active_tangent,
	const char (*tangent_names)[MAX_CUSTOMDATA_LAYER_NAME],			const char (*tangent_names)[MAX_CUSTOMDATA_LAYER_NAME],
	int tangent_names_len,			int tangent_names_len,
	const float (*vert_normals)[3],			const float (*vert_normals)[3],
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