vrshoot
view libs/assimp/CalcTangentsProcess.h @ 0:b2f14e535253
initial commit
| author | John Tsiombikas <nuclear@member.fsf.org> |
|---|---|
| date | Sat, 01 Feb 2014 19:58:19 +0200 |
| parents | |
| children |
line source
1 /*
2 Open Asset Import Library (assimp)
3 ----------------------------------------------------------------------
5 Copyright (c) 2006-2012, assimp team
6 All rights reserved.
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:
12 * Redistributions of source code must retain the above
13 copyright notice, this list of conditions and the
14 following disclaimer.
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.
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.
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.
38 ----------------------------------------------------------------------
39 */
42 /** @file Defines a post processing step to calculate tangents and
43 bitangents on all imported meshes.*/
44 #ifndef AI_CALCTANGENTSPROCESS_H_INC
45 #define AI_CALCTANGENTSPROCESS_H_INC
47 #include "BaseProcess.h"
49 struct aiMesh;
51 namespace Assimp
52 {
54 // ---------------------------------------------------------------------------
55 /** The CalcTangentsProcess calculates the tangent and bitangent for any vertex
56 * of all meshes. It is expected to be run before the JoinVerticesProcess runs
57 * because the joining of vertices also considers tangents and bitangents for
58 * uniqueness.
59 */
60 class ASSIMP_API_WINONLY CalcTangentsProcess : public BaseProcess
61 {
62 public:
64 CalcTangentsProcess();
65 ~CalcTangentsProcess();
67 public:
68 // -------------------------------------------------------------------
69 /** Returns whether the processing step is present in the given flag.
70 * @param pFlags The processing flags the importer was called with.
71 * A bitwise combination of #aiPostProcessSteps.
72 * @return true if the process is present in this flag fields,
73 * false if not.
74 */
75 bool IsActive( unsigned int pFlags) const;
77 // -------------------------------------------------------------------
78 /** Called prior to ExecuteOnScene().
79 * The function is a request to the process to update its configuration
80 * basing on the Importer's configuration property list.
81 */
82 void SetupProperties(const Importer* pImp);
85 // setter for configMaxAngle
86 inline void SetMaxSmoothAngle(float f)
87 {
88 configMaxAngle =f;
89 }
91 protected:
93 // -------------------------------------------------------------------
94 /** Calculates tangents and bitangents for a specific mesh.
95 * @param pMesh The mesh to process.
96 * @param meshIndex Index of the mesh
97 */
98 bool ProcessMesh( aiMesh* pMesh, unsigned int meshIndex);
100 // -------------------------------------------------------------------
101 /** Executes the post processing step on the given imported data.
102 * @param pScene The imported data to work at.
103 */
104 void Execute( aiScene* pScene);
106 private:
108 /** Configuration option: maximum smoothing angle, in radians*/
109 float configMaxAngle;
110 unsigned int configSourceUV;
111 };
113 } // end of namespace Assimp
115 #endif // AI_CALCTANGENTSPROCESS_H_INC