vrshoot
view libs/assimp/SmoothingGroups.h @ 0:b2f14e535253
initial commit
| author | John Tsiombikas <nuclear@member.fsf.org> |
|---|---|
| date | Sat, 01 Feb 2014 19:58:19 +0200 |
| parents | |
| children |
line source
1 /*
2 Open Asset Import Library (assimp)
3 ----------------------------------------------------------------------
5 Copyright (c) 2006-2012, assimp team
6 All rights reserved.
8 Redistribution and use of this software in source and binary forms,
9 with or without modification, are permitted provided that the
10 following conditions are met:
12 * Redistributions of source code must retain the above
13 copyright notice, this list of conditions and the
14 following disclaimer.
16 * Redistributions in binary form must reproduce the above
17 copyright notice, this list of conditions and the
18 following disclaimer in the documentation and/or other
19 materials provided with the distribution.
21 * Neither the name of the assimp team, nor the names of its
22 contributors may be used to endorse or promote products
23 derived from this software without specific prior
24 written permission of the assimp team.
26 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
27 "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
28 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
29 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
30 OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
31 SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
32 LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
33 DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
34 THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
35 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
36 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
38 ----------------------------------------------------------------------
39 */
41 /** @file Defines the helper data structures for importing 3DS files.
42 http://www.jalix.org/ressources/graphics/3DS/_unofficials/3ds-unofficial.txt */
44 #ifndef AI_SMOOTHINGGROUPS_H_INC
45 #define AI_SMOOTHINGGROUPS_H_INC
47 // ---------------------------------------------------------------------------
48 /** Helper structure representing a face with smoothing groups assigned */
49 struct FaceWithSmoothingGroup
50 {
51 FaceWithSmoothingGroup() : iSmoothGroup(0)
52 {
53 // let the rest uninitialized for performance - in release builds.
54 // in debug builds set all indices to a common magic value
55 #ifdef _DEBUG
56 this->mIndices[0] = 0xffffffff;
57 this->mIndices[1] = 0xffffffff;
58 this->mIndices[2] = 0xffffffff;
59 #endif
60 }
63 //! Indices. .3ds is using uint16. However, after
64 //! an unique vrtex set has been generated,
65 //! individual index values might exceed 2^16
66 uint32_t mIndices[3];
68 //! specifies to which smoothing group the face belongs to
69 uint32_t iSmoothGroup;
70 };
72 // ---------------------------------------------------------------------------
73 /** Helper structure representing a mesh whose faces have smoothing
74 groups assigned. This allows us to reuse the code for normal computations
75 from smoothings groups for several loaders (3DS, ASE). All of them
76 use face structures which inherit from #FaceWithSmoothingGroup,
77 but as they add extra members and need to be copied by value we
78 need to use a template here.
79 */
80 template <class T>
81 struct MeshWithSmoothingGroups
82 {
83 //! Vertex positions
84 std::vector<aiVector3D> mPositions;
86 //! Face lists
87 std::vector<T> mFaces;
89 //! List of normal vectors
90 std::vector<aiVector3D> mNormals;
91 };
93 // ---------------------------------------------------------------------------
94 /** Computes normal vectors for the mesh
95 */
96 template <class T>
97 void ComputeNormalsWithSmoothingsGroups(MeshWithSmoothingGroups<T>& sMesh);
100 // include implementations
101 #include "SmoothingGroups.inl"
103 #endif // !! AI_SMOOTHINGGROUPS_H_INC