1 /*
2 Open Asset Import Library (assimp)
3 ----------------------------------------------------------------------
4 
5 Copyright (c) 2006-2016, assimp team
6 All rights reserved.
7 
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:
11 
12 * Redistributions of source code must retain the above
13   copyright notice, this list of conditions and the
14   following disclaimer.
15 
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.
20 
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.
25 
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,
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32 LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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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.
37 
38 ----------------------------------------------------------------------
39 */
40 
41 /** @file Defines a post processing step to compute face normals for all loaded faces*/
42 #ifndef AI_GENFACENORMALPROCESS_H_INC
43 #define AI_GENFACENORMALPROCESS_H_INC
44 
45 #include "BaseProcess.h"
46 #include <assimp/mesh.h>
47 
48 namespace Assimp
49 {
50 
51 // ---------------------------------------------------------------------------
52 /** The GenFaceNormalsProcess computes face normals for all faces of all meshes
53 */
54 class ASSIMP_API_WINONLY GenFaceNormalsProcess : public BaseProcess
55 {
56 public:
57 
58     GenFaceNormalsProcess();
59     ~GenFaceNormalsProcess();
60 
61 public:
62     // -------------------------------------------------------------------
63     /** Returns whether the processing step is present in the given flag field.
64     * @param pFlags The processing flags the importer was called with. A bitwise
65     *   combination of #aiPostProcessSteps.
66     * @return true if the process is present in this flag fields, false if not.
67     */
68     bool IsActive( unsigned int pFlags) const;
69 
70     // -------------------------------------------------------------------
71     /** Executes the post processing step on the given imported data.
72     * At the moment a process is not supposed to fail.
73     * @param pScene The imported data to work at.
74     */
75     void Execute( aiScene* pScene);
76 
77 
78 private:
79     bool GenMeshFaceNormals (aiMesh* pcMesh);
80 };
81 
82 } // end of namespace Assimp
83 
84 #endif // !!AI_GENFACENORMALPROCESS_H_INC
85