forked from bartvdbraak/blender
76 lines
1.8 KiB
C
76 lines
1.8 KiB
C
|
/*
|
||
|
|
* Copyright 2011, Blender Foundation.
|
||
|
|
*
|
||
|
|
* This program is free software; you can redistribute it and/or
|
||
|
|
* modify it under the terms of the GNU General Public License
|
||
|
|
* as published by the Free Software Foundation; either version 2
|
||
|
|
* of the License, or (at your option) any later version.
|
||
|
|
*
|
||
|
|
* This program is distributed in the hope that it will be useful,
|
||
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
|
|
* GNU General Public License for more details.
|
||
|
|
*
|
||
|
|
* You should have received a copy of the GNU General Public License
|
||
|
|
* along with this program; if not, write to the Free Software Foundation,
|
||
|
|
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#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__ */
|
||
|
|
|