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view libs/assimp/GenVertexNormalsProcess.h @ 2:334d17aed7de

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author John Tsiombikas <nuclear@member.fsf.org>
date Sun, 02 Feb 2014 18:36:38 +0200
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1 /*
2 Open Asset Import Library (assimp)
3 ----------------------------------------------------------------------
4
5 Copyright (c) 2006-2012, 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,
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.
37
38 ----------------------------------------------------------------------
39 */
40
41 /** @file Defines a post processing step to compute vertex normals
42 for all loaded vertizes */
43 #ifndef AI_GENVERTEXNORMALPROCESS_H_INC
44 #define AI_GENVERTEXNORMALPROCESS_H_INC
45
46 #include "BaseProcess.h"
47 #include "assimp/mesh.h"
48
49 class GenNormalsTest;
50
51 namespace Assimp {
52
53 // ---------------------------------------------------------------------------
54 /** The GenFaceNormalsProcess computes vertex normals for all vertizes
55 */
56 class ASSIMP_API_WINONLY GenVertexNormalsProcess : public BaseProcess
57 {
58 public:
59
60 GenVertexNormalsProcess();
61 ~GenVertexNormalsProcess();
62
63 public:
64 // -------------------------------------------------------------------
65 /** Returns whether the processing step is present in the given flag.
66 * @param pFlags The processing flags the importer was called with.
67 * A bitwise combination of #aiPostProcessSteps.
68 * @return true if the process is present in this flag fields,
69 * false if not.
70 */
71 bool IsActive( unsigned int pFlags) const;
72
73 // -------------------------------------------------------------------
74 /** Called prior to ExecuteOnScene().
75 * The function is a request to the process to update its configuration
76 * basing on the Importer's configuration property list.
77 */
78 void SetupProperties(const Importer* pImp);
79
80 // -------------------------------------------------------------------
81 /** Executes the post processing step on the given imported data.
82 * At the moment a process is not supposed to fail.
83 * @param pScene The imported data to work at.
84 */
85 void Execute( aiScene* pScene);
86
87
88 // setter for configMaxAngle
89 inline void SetMaxSmoothAngle(float f)
90 {
91 configMaxAngle =f;
92 }
93
94 public:
95
96 // -------------------------------------------------------------------
97 /** Computes normals for a specific mesh
98 * @param pcMesh Mesh
99 * @param meshIndex Index of the mesh
100 * @return true if vertex normals have been computed
101 */
102 bool GenMeshVertexNormals (aiMesh* pcMesh, unsigned int meshIndex);
103
104 private:
105
106 /** Configuration option: maximum smoothing angle, in radians*/
107 float configMaxAngle;
108 };
109
110 } // end of namespace Assimp
111
112 #endif // !!AI_GENVERTEXNORMALPROCESS_H_INC
113