FGFS-4.1/OpenSceneGraph
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Added enable of clear stencil and depth mask to ensure that stencil and depth buffers are always cleared when required

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This commit is contained in:
Robert Osfield 2009-05-18 15:46:02 +00:00
parent eab39329c5
commit 4dd7a87aaa
1 changed files with 13 additions and 6 deletions
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19
src/osgUtil/RenderStage.cpp
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@ -1209,17 +1209,12 @@ void RenderStage::drawImplementation(osg::RenderInfo& renderInfo,RenderLeaf*& pr
// set up the back buffer.
state.applyAttribute(_viewport.get());
#define USE_SCISSOR_TEST
#ifdef USE_SCISSOR_TEST
glScissor( static_cast<int>(_viewport->x()),
static_cast<int>(_viewport->y()),
static_cast<int>(_viewport->width()),
static_cast<int>(_viewport->height()) );
//cout << " clearing "<<this<< " "<<_viewport->x()<<","<< _viewport->y()<<","<< _viewport->width()<<","<< _viewport->height()<<std::endl;
glEnable( GL_SCISSOR_TEST );
#endif
state.applyMode( GL_SCISSOR_TEST, true );
// glEnable( GL_DEPTH_TEST );
@ -1228,16 +1223,28 @@ void RenderStage::drawImplementation(osg::RenderInfo& renderInfo,RenderLeaf*& pr
else glColorMask(GL_TRUE,GL_TRUE,GL_TRUE,GL_TRUE);
if (_clearMask & GL_COLOR_BUFFER_BIT)
{
glClearColor( _clearColor[0], _clearColor[1], _clearColor[2], _clearColor[3]);
}
if (_clearMask & GL_DEPTH_BUFFER_BIT)
{
glClearDepth( _clearDepth);
glDepthMask ( GL_TRUE );
state.haveAppliedAttribute( osg::StateAttribute::DEPTH );
}
if (_clearMask & GL_STENCIL_BUFFER_BIT)
{
glClearStencil( _clearStencil);
glStencilMask ( GL_TRUE );
state.haveAppliedAttribute( osg::StateAttribute::STENCIL );
}
if (_clearMask & GL_ACCUM_BUFFER_BIT)
{
glClearAccum( _clearAccum[0], _clearAccum[1], _clearAccum[2], _clearAccum[3]);
}
glClear( _clearMask );