1a7f2fcb3e
Note, osg::Program::setParameter(GL_PATCH_VERTICES,num); is nolonger support and should be replaced by using the new PatchParameter class.
43 lines
1.4 KiB
C++
43 lines
1.4 KiB
C++
/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield
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*
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* This library is open source and may be redistributed and/or modified under
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* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
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* (at your option) any later version. The full license is in LICENSE file
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* included with this distribution, and on the openscenegraph.org website.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* OpenSceneGraph Public License for more details.
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*/
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#include <osg/PatchParameter>
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#include <osg/State>
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#include <osg/Notify>
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#include <osg/io_utils>
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using namespace osg;
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PatchParameter::PatchParameter(GLint vertices):
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_vertices(vertices),
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_patchDefaultInnerLevel(1.0f,1.0f),
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_patchDefaultOuterLevel(1.0f,1.0f,1.0f,1.0f)
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{
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}
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PatchParameter::~PatchParameter()
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{
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}
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void PatchParameter::apply(State& state) const
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{
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GL2Extensions* extensions = GL2Extensions::Get( state.getContextID(), true );
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if (extensions->areTessellationShadersSupported() )
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{
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extensions->glPatchParameteri( GL_PATCH_VERTICES, _vertices );
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extensions->glPatchParameterfv( GL_PATCH_DEFAULT_INNER_LEVEL, _patchDefaultInnerLevel.ptr() );
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extensions->glPatchParameterfv( GL_PATCH_DEFAULT_OUTER_LEVEL, _patchDefaultOuterLevel.ptr() );
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}
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}
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