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1 /*
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2 Open Asset Import Library (assimp)
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3 ----------------------------------------------------------------------
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4
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5 Copyright (c) 2006-2012, assimp team
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6 All rights reserved.
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7
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8 Redistribution and use of this software in source and binary forms,
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9 with or without modification, are permitted provided that the
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10 following conditions are met:
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11
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12 * Redistributions of source code must retain the above
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13 copyright notice, this list of conditions and the
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14 following disclaimer.
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15
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16 * Redistributions in binary form must reproduce the above
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17 copyright notice, this list of conditions and the
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18 following disclaimer in the documentation and/or other
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19 materials provided with the distribution.
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20
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21 * Neither the name of the assimp team, nor the names of its
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22 contributors may be used to endorse or promote products
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23 derived from this software without specific prior
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24 written permission of the assimp team.
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25
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26 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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27 "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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28 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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29 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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30 OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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31 SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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32 LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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33 DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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34 THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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35 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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36 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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37
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38 ----------------------------------------------------------------------
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39 */
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40
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41 /** @file Defines a post processing step to join identical vertices
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42 on all imported meshes.*/
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43 #ifndef AI_JOINVERTICESPROCESS_H_INC
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44 #define AI_JOINVERTICESPROCESS_H_INC
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45
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46 #include "BaseProcess.h"
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47 #include "assimp/types.h"
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48
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49 namespace Assimp
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50 {
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51
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52 class JoinVerticesTest;
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53
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54 // ---------------------------------------------------------------------------
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55 /** The JoinVerticesProcess unites identical vertices in all imported meshes.
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56 * By default the importer returns meshes where each face addressed its own
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57 * set of vertices even if that means that identical vertices are stored multiple
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58 * times. The JoinVerticesProcess finds these identical vertices and
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59 * erases all but one of the copies. This usually reduces the number of vertices
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60 * in a mesh by a serious amount and is the standard form to render a mesh.
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61 */
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62 class ASSIMP_API_WINONLY JoinVerticesProcess : public BaseProcess
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63 {
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64 public:
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65
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66 JoinVerticesProcess();
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67 ~JoinVerticesProcess();
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68
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69 public:
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70 // -------------------------------------------------------------------
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71 /** Returns whether the processing step is present in the given flag field.
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72 * @param pFlags The processing flags the importer was called with. A bitwise
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73 * combination of #aiPostProcessSteps.
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74 * @return true if the process is present in this flag fields, false if not.
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75 */
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76 bool IsActive( unsigned int pFlags) const;
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77
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78 // -------------------------------------------------------------------
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79 /** Executes the post processing step on the given imported data.
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80 * At the moment a process is not supposed to fail.
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81 * @param pScene The imported data to work at.
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82 */
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83 void Execute( aiScene* pScene);
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84
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85 public:
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86 // -------------------------------------------------------------------
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87 /** Unites identical vertices in the given mesh.
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88 * @param pMesh The mesh to process.
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89 * @param meshIndex Index of the mesh to process
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90 */
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91 int ProcessMesh( aiMesh* pMesh, unsigned int meshIndex);
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92
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93 private:
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94 };
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95
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96 } // end of namespace Assimp
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97
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98 #endif // AI_CALCTANGENTSPROCESS_H_INC
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