1/*
2Open Asset Import Library (assimp)
3----------------------------------------------------------------------
4
5Copyright (c) 2006-2017, assimp team
6
7All rights reserved.
8
9Redistribution and use of this software in source and binary forms,
10with or without modification, are permitted provided that the
11following conditions are met:
12
13* Redistributions of source code must retain the above
14 copyright notice, this list of conditions and the
15 following disclaimer.
16
17* Redistributions in binary form must reproduce the above
18 copyright notice, this list of conditions and the
19 following disclaimer in the documentation and/or other
20 materials provided with the distribution.
21
22* Neither the name of the assimp team, nor the names of its
23 contributors may be used to endorse or promote products
24 derived from this software without specific prior
25 written permission of the assimp team.
26
27THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
28"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
29LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
30A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
31OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
32SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
33LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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37OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
38
39----------------------------------------------------------------------
40*/
41
42/** @file Defines a post processing step to join identical vertices
43 on all imported meshes.*/
44#ifndef AI_JOINVERTICESPROCESS_H_INC
45#define AI_JOINVERTICESPROCESS_H_INC
46
47#include "BaseProcess.h"
48#include <assimp/types.h>
49
50struct aiMesh;
51
52namespace Assimp
53{
54
55// ---------------------------------------------------------------------------
56/** The JoinVerticesProcess unites identical vertices in all imported meshes.
57 * By default the importer returns meshes where each face addressed its own
58 * set of vertices even if that means that identical vertices are stored multiple
59 * times. The JoinVerticesProcess finds these identical vertices and
60 * erases all but one of the copies. This usually reduces the number of vertices
61 * in a mesh by a serious amount and is the standard form to render a mesh.
62 */
63class ASSIMP_API JoinVerticesProcess : public BaseProcess
64{
65public:
66 JoinVerticesProcess();
67 ~JoinVerticesProcess();
68
69public:
70 // -------------------------------------------------------------------
71 /** Returns whether the processing step is present in the given flag field.
72 * @param pFlags The processing flags the importer was called with. A bitwise
73 * combination of #aiPostProcessSteps.
74 * @return true if the process is present in this flag fields, false if not.
75 */
76 bool IsActive( unsigned int pFlags) const;
77
78 // -------------------------------------------------------------------
79 /** Executes the post processing step on the given imported data.
80 * At the moment a process is not supposed to fail.
81 * @param pScene The imported data to work at.
82 */
83 void Execute( aiScene* pScene);
84
85public:
86 // -------------------------------------------------------------------
87 /** Unites identical vertices in the given mesh.
88 * @param pMesh The mesh to process.
89 * @param meshIndex Index of the mesh to process
90 */
91 int ProcessMesh( aiMesh* pMesh, unsigned int meshIndex);
92
93private:
94};
95
96} // end of namespace Assimp
97
98#endif // AI_CALCTANGENTSPROCESS_H_INC
99