2011-04-27 11:58:34 +00:00
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/*
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2013-08-18 14:16:15 +00:00
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* Copyright 2011-2013 Blender Foundation
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2011-04-27 11:58:34 +00:00
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*
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2013-08-18 14:16:15 +00:00
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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2011-04-27 11:58:34 +00:00
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*
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2013-08-18 14:16:15 +00:00
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* http://www.apache.org/licenses/LICENSE-2.0
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2011-04-27 11:58:34 +00:00
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*
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2013-08-18 14:16:15 +00:00
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License
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2011-04-27 11:58:34 +00:00
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*/
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#ifndef __SUBD_BUILD_H__
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#define __SUBD_BUILD_H__
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CCL_NAMESPACE_BEGIN
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class SubdFace;
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class SubdFaceRing;
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class SubdVert;
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class GregoryAccStencil;
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class Patch;
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class StencilMask;
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/* Builder */
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class SubdBuilder
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{
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public:
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virtual ~SubdBuilder() {};
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virtual Patch *run(SubdFace *face) = 0;
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static SubdBuilder *create(bool linear);
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};
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/* Approximate Catmull Clark using Loop's approximation */
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class SubdAccBuilder : public SubdBuilder
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{
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public:
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SubdAccBuilder();
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~SubdAccBuilder();
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Patch *run(SubdFace *face);
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protected:
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/* Gregory Patch */
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void computeCornerStencil(SubdFaceRing *ring, GregoryAccStencil *stencil);
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void computeEdgeStencil(SubdFaceRing *ring, GregoryAccStencil *stencil);
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void computeInteriorStencil(SubdFaceRing *ring, GregoryAccStencil *stencil);
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void computeBoundaryTangentStencils(SubdFaceRing *ring,
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SubdVert *vert,
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StencilMask & r0, StencilMask & r1);
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};
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/* Linear Subdivision */
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class SubdLinearBuilder : public SubdBuilder
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{
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public:
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SubdLinearBuilder();
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~SubdLinearBuilder();
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Patch *run(SubdFace *face);
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};
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CCL_NAMESPACE_END
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#endif /* __SUBD_BUILD_H__ */
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