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49 lines
2.0 KiB
C
49 lines
2.0 KiB
C
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/**
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* Copyright (C) 2011 by Morten S. Mikkelsen
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*
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* This software is provided 'as-is', without any express or implied
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* warranty. In no event will the authors be held liable for any damages
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* arising from the use of this software.
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*
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* Permission is granted to anyone to use this software for any purpose,
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* including commercial applications, and to alter it and redistribute it
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* freely, subject to the following restrictions:
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*
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* 1. The origin of this software must not be misrepresented; you must not
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* claim that you wrote the original software. If you use this software
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* in a product, an acknowledgment in the product documentation would be
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* appreciated but is not required.
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* 2. Altered source versions must be plainly marked as such, and must not be
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* misrepresented as being the original software.
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* 3. This notice may not be removed or altered from any source distribution.
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*/
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#ifndef __WELDMESH_H__
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#define __WELDMESH_H__
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#ifdef __cplusplus
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extern "C" {
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#endif
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// piRemapTable must be initialized and point to an area in memory
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// with the byte size: iNrVerticesIn * sizeof(int).
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// pfVertexDataOut must be initialized and point to an area in memory
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// with the byte size: iNrVerticesIn * iFloatsPerVert * sizeof(float).
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// At the end of the WeldMesh() call the array pfVertexDataOut will contain
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// unique vertices only. Each entry in piRemapTable contains the index to
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// the new location of the vertex in pfVertexDataOut in units of iFloatsPerVert.
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// Note that this code is suitable for welding both unindexed meshes but also
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// indexed meshes which need to have duplicates removed. In the latter case
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// one simply uses the remap table to convert the old index list to the new vertex array.
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// Finally, the return value is the number of unique vertices found.
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int WeldMesh(int * piRemapTable, float * pfVertexDataOut,
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const float pfVertexDataIn[], const int iNrVerticesIn, const int iFloatsPerVert);
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#ifdef __cplusplus
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}
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#endif
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#endif
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