nuclear@0: /*
nuclear@0: Open Asset Import Library (assimp)
nuclear@0: ----------------------------------------------------------------------
nuclear@0: 
nuclear@0: Copyright (c) 2006-2012, assimp team
nuclear@0: All rights reserved.
nuclear@0: 
nuclear@0: Redistribution and use of this software in source and binary forms, 
nuclear@0: with or without modification, are permitted provided that the 
nuclear@0: following conditions are met:
nuclear@0: 
nuclear@0: * Redistributions of source code must retain the above
nuclear@0:   copyright notice, this list of conditions and the
nuclear@0:   following disclaimer.
nuclear@0: 
nuclear@0: * Redistributions in binary form must reproduce the above
nuclear@0:   copyright notice, this list of conditions and the
nuclear@0:   following disclaimer in the documentation and/or other
nuclear@0:   materials provided with the distribution.
nuclear@0: 
nuclear@0: * Neither the name of the assimp team, nor the names of its
nuclear@0:   contributors may be used to endorse or promote products
nuclear@0:   derived from this software without specific prior
nuclear@0:   written permission of the assimp team.
nuclear@0: 
nuclear@0: THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 
nuclear@0: "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 
nuclear@0: LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
nuclear@0: A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 
nuclear@0: OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
nuclear@0: SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 
nuclear@0: LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
nuclear@0: DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 
nuclear@0: THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 
nuclear@0: (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 
nuclear@0: OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
nuclear@0: 
nuclear@0: ----------------------------------------------------------------------
nuclear@0: */
nuclear@0: 
nuclear@0: /** @file Defines the helper data structures for importing 3DS files.
nuclear@0: http://www.jalix.org/ressources/graphics/3DS/_unofficials/3ds-unofficial.txt */
nuclear@0: 
nuclear@0: #ifndef AI_SMOOTHINGGROUPS_H_INC
nuclear@0: #define AI_SMOOTHINGGROUPS_H_INC
nuclear@0: 
nuclear@0: // ---------------------------------------------------------------------------
nuclear@0: /** Helper structure representing a face with smoothing groups assigned */
nuclear@0: struct FaceWithSmoothingGroup
nuclear@0: {
nuclear@0: 	FaceWithSmoothingGroup() : iSmoothGroup(0)
nuclear@0: 	{
nuclear@0: 		// let the rest uninitialized for performance - in release builds.
nuclear@0: 		// in debug builds set all indices to a common magic value
nuclear@0: #ifdef _DEBUG
nuclear@0: 		this->mIndices[0] = 0xffffffff;
nuclear@0: 		this->mIndices[1] = 0xffffffff;
nuclear@0: 		this->mIndices[2] = 0xffffffff;
nuclear@0: #endif
nuclear@0: 	}
nuclear@0: 
nuclear@0: 	
nuclear@0: 	//! Indices. .3ds is using uint16. However, after
nuclear@0: 	//! an unique vrtex set has been generated,
nuclear@0: 	//! individual index values might exceed 2^16
nuclear@0: 	uint32_t mIndices[3];
nuclear@0: 
nuclear@0: 	//! specifies to which smoothing group the face belongs to
nuclear@0: 	uint32_t iSmoothGroup;
nuclear@0: };
nuclear@0: 
nuclear@0: // ---------------------------------------------------------------------------
nuclear@0: /** Helper structure representing a mesh whose faces have smoothing
nuclear@0:     groups assigned. This allows us to reuse the code for normal computations 
nuclear@0: 	from smoothings groups for several loaders (3DS, ASE). All of them 
nuclear@0: 	use face structures which inherit from #FaceWithSmoothingGroup,
nuclear@0: 	but as they add extra members and need to be copied by value we
nuclear@0: 	need to use a template here.
nuclear@0: 	*/
nuclear@0: template <class T>
nuclear@0: struct MeshWithSmoothingGroups
nuclear@0: {
nuclear@0: 	//! Vertex positions
nuclear@0: 	std::vector<aiVector3D> mPositions;
nuclear@0: 
nuclear@0: 	//! Face lists
nuclear@0: 	std::vector<T> mFaces;
nuclear@0: 
nuclear@0: 	//! List of normal vectors
nuclear@0: 	std::vector<aiVector3D> mNormals;
nuclear@0: };
nuclear@0: 
nuclear@0: // ---------------------------------------------------------------------------
nuclear@0: /** Computes normal vectors for the mesh
nuclear@0:  */
nuclear@0: template <class T>
nuclear@0: void ComputeNormalsWithSmoothingsGroups(MeshWithSmoothingGroups<T>& sMesh);
nuclear@0: 
nuclear@0: 
nuclear@0: // include implementations
nuclear@0: #include "SmoothingGroups.inl"
nuclear@0: 
nuclear@0: #endif // !! AI_SMOOTHINGGROUPS_H_INC