void ScreenMVCullVisitor::apply(osg::ClearNode& node)
{
// simply override the current earth sky.
if(node.getRequiresClear())
{
getCurrentRenderBin()->getStage()->setClearColor(node.getClearColor());
getCurrentRenderBin()->getStage()->setClearMask(node.getClearMask());
}
else
{
// we have an earth sky implementation to do the work for us
// so we don't need to clear.
getCurrentRenderBin()->getStage()->setClearMask(0);
}
// push the node's state.
StateSet* node_state = node.getStateSet();
if(node_state)
pushStateSet(node_state);
handle_cull_callbacks_and_traverse(node);
// pop the node's state off the render graph stack.
if(node_state)
popStateSet();
}
// _clearMask
static bool checkClearMask( const osg::ClearNode& node )
{
return node.getClearMask()!=(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
}
