forked from bartvdbraak/blender
b9ce231060
More information in this post: http://code.blender.org/ Thanks to all contributes for giving their permission!
74 lines
1.7 KiB
C++
74 lines
1.7 KiB
C++
/*
|
|
* Copyright 2011-2013 Blender Foundation
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License
|
|
*/
|
|
|
|
#ifndef __SUBD_BUILD_H__
|
|
#define __SUBD_BUILD_H__
|
|
|
|
CCL_NAMESPACE_BEGIN
|
|
|
|
class SubdFace;
|
|
class SubdFaceRing;
|
|
class SubdVert;
|
|
class GregoryAccStencil;
|
|
class Patch;
|
|
class StencilMask;
|
|
|
|
/* Builder */
|
|
|
|
class SubdBuilder
|
|
{
|
|
public:
|
|
virtual ~SubdBuilder() {};
|
|
virtual Patch *run(SubdFace *face) = 0;
|
|
static SubdBuilder *create(bool linear);
|
|
};
|
|
|
|
/* Approximate Catmull Clark using Loop's approximation */
|
|
|
|
class SubdAccBuilder : public SubdBuilder
|
|
{
|
|
public:
|
|
SubdAccBuilder();
|
|
~SubdAccBuilder();
|
|
|
|
Patch *run(SubdFace *face);
|
|
|
|
protected:
|
|
/* Gregory Patch */
|
|
void computeCornerStencil(SubdFaceRing *ring, GregoryAccStencil *stencil);
|
|
void computeEdgeStencil(SubdFaceRing *ring, GregoryAccStencil *stencil);
|
|
void computeInteriorStencil(SubdFaceRing *ring, GregoryAccStencil *stencil);
|
|
void computeBoundaryTangentStencils(SubdFaceRing *ring,
|
|
SubdVert *vert,
|
|
StencilMask & r0, StencilMask & r1);
|
|
};
|
|
|
|
/* Linear Subdivision */
|
|
|
|
class SubdLinearBuilder : public SubdBuilder
|
|
{
|
|
public:
|
|
SubdLinearBuilder();
|
|
~SubdLinearBuilder();
|
|
|
|
Patch *run(SubdFace *face);
|
|
};
|
|
|
|
CCL_NAMESPACE_END
|
|
|
|
#endif /* __SUBD_BUILD_H__ */
|
|
|