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,
34DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
35THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
36(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
37OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
38
39----------------------------------------------------------------------
40*/
41
42/** @file Defines a post processing step to compute vertex normals
43 for all loaded vertizes */
44#ifndef AI_GENVERTEXNORMALPROCESS_H_INC
45#define AI_GENVERTEXNORMALPROCESS_H_INC
46
47#include "BaseProcess.h"
48#include <assimp/mesh.h>
49
50class GenNormalsTest;
51
52namespace Assimp {
53
54// ---------------------------------------------------------------------------
55/** The GenFaceNormalsProcess computes vertex normals for all vertizes
56*/
57class ASSIMP_API GenVertexNormalsProcess : public BaseProcess
58{
59public:
60
61 GenVertexNormalsProcess();
62 ~GenVertexNormalsProcess();
63
64public:
65 // -------------------------------------------------------------------
66 /** Returns whether the processing step is present in the given flag.
67 * @param pFlags The processing flags the importer was called with.
68 * A bitwise combination of #aiPostProcessSteps.
69 * @return true if the process is present in this flag fields,
70 * false if not.
71 */
72 bool IsActive( unsigned int pFlags) const;
73
74 // -------------------------------------------------------------------
75 /** Called prior to ExecuteOnScene().
76 * The function is a request to the process to update its configuration
77 * basing on the Importer's configuration property list.
78 */
79 void SetupProperties(const Importer* pImp);
80
81 // -------------------------------------------------------------------
82 /** Executes the post processing step on the given imported data.
83 * At the moment a process is not supposed to fail.
84 * @param pScene The imported data to work at.
85 */
86 void Execute( aiScene* pScene);
87
88
89 // setter for configMaxAngle
90 inline void SetMaxSmoothAngle(ai_real f)
91 {
92 configMaxAngle =f;
93 }
94
95public:
96
97 // -------------------------------------------------------------------
98 /** Computes normals for a specific mesh
99 * @param pcMesh Mesh
100 * @param meshIndex Index of the mesh
101 * @return true if vertex normals have been computed
102 */
103 bool GenMeshVertexNormals (aiMesh* pcMesh, unsigned int meshIndex);
104
105private:
106
107 /** Configuration option: maximum smoothing angle, in radians*/
108 ai_real configMaxAngle;
109};
110
111} // end of namespace Assimp
112
113#endif // !!AI_GENVERTEXNORMALPROCESS_H_INC
114