108 lines
3.7 KiB
C++
108 lines
3.7 KiB
C++
/*
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Open Asset Import Library (assimp)
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----------------------------------------------------------------------
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Copyright (c) 2006-2015, assimp team
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All rights reserved.
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Redistribution and use of this software in source and binary forms,
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with or without modification, are permitted provided that the
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following conditions are met:
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* Redistributions of source code must retain the above
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copyright notice, this list of conditions and the
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following disclaimer.
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* Redistributions in binary form must reproduce the above
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copyright notice, this list of conditions and the
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following disclaimer in the documentation and/or other
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materials provided with the distribution.
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* Neither the name of the assimp team, nor the names of its
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contributors may be used to endorse or promote products
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derived from this software without specific prior
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written permission of the assimp team.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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----------------------------------------------------------------------
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*/
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/** @file Defines the helper data structures for importing 3DS files.
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http://www.jalix.org/ressources/graphics/3DS/_unofficials/3ds-unofficial.txt */
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#ifndef AI_SMOOTHINGGROUPS_H_INC
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#define AI_SMOOTHINGGROUPS_H_INC
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#include "../include/assimp/vector3.h"
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#include <stdint.h>
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#include <vector>
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// ---------------------------------------------------------------------------
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/** Helper structure representing a face with smoothing groups assigned */
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struct FaceWithSmoothingGroup
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{
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FaceWithSmoothingGroup() : iSmoothGroup(0)
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{
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// let the rest uninitialized for performance - in release builds.
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// in debug builds set all indices to a common magic value
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#ifdef ASSIMP_BUILD_DEBUG
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this->mIndices[0] = 0xffffffff;
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this->mIndices[1] = 0xffffffff;
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this->mIndices[2] = 0xffffffff;
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#endif
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}
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//! Indices. .3ds is using uint16. However, after
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//! an unique vrtex set has been generated,
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//! individual index values might exceed 2^16
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uint32_t mIndices[3];
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//! specifies to which smoothing group the face belongs to
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uint32_t iSmoothGroup;
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};
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// ---------------------------------------------------------------------------
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/** Helper structure representing a mesh whose faces have smoothing
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groups assigned. This allows us to reuse the code for normal computations
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from smoothings groups for several loaders (3DS, ASE). All of them
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use face structures which inherit from #FaceWithSmoothingGroup,
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but as they add extra members and need to be copied by value we
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need to use a template here.
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*/
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template <class T>
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struct MeshWithSmoothingGroups
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{
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//! Vertex positions
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std::vector<aiVector3D> mPositions;
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//! Face lists
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std::vector<T> mFaces;
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//! List of normal vectors
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std::vector<aiVector3D> mNormals;
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};
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// ---------------------------------------------------------------------------
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/** Computes normal vectors for the mesh
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*/
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template <class T>
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void ComputeNormalsWithSmoothingsGroups(MeshWithSmoothingGroups<T>& sMesh);
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// include implementations
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#include "SmoothingGroups.inl"
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#endif // !! AI_SMOOTHINGGROUPS_H_INC
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