forked from bartvdbraak/blender
da376e0237
Cycles uses code from some great open source projects, many thanks them: * BVH building and traversal code from NVidia's "Understanding the Efficiency of Ray Traversal on GPUs": http://code.google.com/p/understanding-the-efficiency-of-ray-traversal-on-gpus/ * Open Shading Language for a large part of the shading system: http://code.google.com/p/openshadinglanguage/ * Blender for procedural textures and a few other nodes. * Approximate Catmull Clark subdivision from NVidia Mesh tools: http://code.google.com/p/nvidia-mesh-tools/ * Sobol direction vectors from: http://web.maths.unsw.edu.au/~fkuo/sobol/ * Film response functions from: http://www.cs.columbia.edu/CAVE/software/softlib/dorf.php
91 lines
2.6 KiB
C++
91 lines
2.6 KiB
C++
/*
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* Original code in the public domain -- castanyo@yahoo.es
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*
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* Modifications copyright (c) 2011, Blender Foundation.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef __SUBD_MESH_H__
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#define __SUBD_MESH_H__
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#include "util_map.h"
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#include "util_types.h"
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#include "util_vector.h"
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CCL_NAMESPACE_BEGIN
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class SubdFace;
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class SubdVert;
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class SubdEdge;
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class DiagSplit;
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class Mesh;
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/* Subd Mesh, half edge based for dynamic mesh manipulation */
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class SubdMesh
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{
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public:
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vector<SubdVert*> verts;
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vector<SubdEdge*> edges;
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vector<SubdFace*> faces;
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SubdMesh();
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~SubdMesh();
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SubdVert *add_vert(const float3& co);
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SubdFace *add_face(int v0, int v1, int v2);
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SubdFace *add_face(int v0, int v1, int v2, int v3);
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SubdFace *add_face(int *index, int num);
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bool link_boundary();
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void tesselate(DiagSplit *split, bool linear,
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Mesh *mesh, int shader, bool smooth);
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protected:
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bool can_add_face(int *index, int num);
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bool can_add_edge(int i, int j);
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SubdEdge *add_edge(int i, int j);
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SubdEdge *find_edge(int i, int j);
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void link_boundary_edge(SubdEdge *edge);
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struct Key {
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Key() {}
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Key(int v0, int v1) : p0(v0), p1(v1) {}
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bool operator<(const Key& k) const
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{ return (p0 < k.p0 || (p0 == k.p0 && p1 < k.p1)); }
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int p0, p1;
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};
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map<Key, SubdEdge *> edge_map;
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};
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CCL_NAMESPACE_END
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#endif /* __SUBD_MESH_H__ */
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