void CVRCullVisitor::apply(osg::ClipNode& node)
{
// push the node's state.
StateSet* node_state = node.getStateSet();
if(node_state)
pushStateSet(node_state);
RefMatrix& matrix = *getModelViewMatrix();
const ClipNode::ClipPlaneList& planes = node.getClipPlaneList();
for(ClipNode::ClipPlaneList::const_iterator itr = planes.begin();
itr != planes.end(); ++itr)
{
if(node.getReferenceFrame() == osg::ClipNode::RELATIVE_RF)
{
addPositionedAttribute(&matrix,itr->get());
}
else
{
addPositionedAttribute(0,itr->get());
}
}
handle_cull_callbacks_and_traverse(node);
// pop the node's state off the geostate stack.
if(node_state)
popStateSet();
}
void
ShaderGenerator::apply(osg::ClipNode& node)
{
static const char* s_clip_source =
"#version " GLSL_VERSION_STR "\n"
"void oe_sg_set_clipvertex(inout vec4 vertexVIEW)\n"
"{\n"
" gl_ClipVertex = vertexVIEW; \n"
"}\n";
if ( !_active )
return;
bool ignore;
if ( node.getUserValue(SHADERGEN_HINT_IGNORE, ignore) && ignore )
return;
VirtualProgram* vp = VirtualProgram::getOrCreate(node.getOrCreateStateSet());
if ( vp->referenceCount() == 1 ) vp->setName( _name );
vp->setFunction( "oe_sg_set_clipvertex", s_clip_source, ShaderComp::LOCATION_VERTEX_VIEW );
apply( static_cast<osg::Group&>(node) );
}
void
ShaderGenerator::apply(osg::ClipNode& node)
{
static const char* s_clip_source =
"#version " GLSL_VERSION_STR "\n"
"void sg_set_clipvertex(inout vec4 vertexVIEW)\n"
"{\n"
" gl_ClipVertex = vertexVIEW; \n"
"}\n";
if ( !_active ) return;
VirtualProgram* vp = VirtualProgram::getOrCreate(node.getOrCreateStateSet());
vp->setFunction( "sg_set_clipvertex", s_clip_source, ShaderComp::LOCATION_VERTEX_VIEW );
apply( static_cast<osg::Group&>(node) );
}