Files
OpenSceneGraph/src/osgUtil/RenderLeaf.cpp
Robert Osfield e51c7f1587 Added support for AbortRendering flag pointer in osg::State which is used
by osgUtil::RenderLeaf to test if any abort state has been set, if so it
doesn't do any further drawing.

The osgProducer::Viewer has been set up to set the osg::State's it manages
with their AbortRendering flag pointers set to the osgProducer::Viewer::_done
memeber varaible.  Now when escape is pressed the rendering is aborted early.
2003-03-11 15:25:49 +00:00

74 lines
2.1 KiB
C++

/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2003 Robert Osfield
*
* This library is open source and may be redistributed and/or modified under
* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
* (at your option) any later version. The full license is in LICENSE file
* included with this distribution, and on the openscenegraph.org website.
*
* This library 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
* OpenSceneGraph Public License for more details.
*/
#include <osgUtil/RenderLeaf>
#include <osgUtil/RenderGraph>
using namespace osg;
using namespace osgUtil;
void RenderLeaf::render(State& state,RenderLeaf* previous)
{
// don't draw this leaf if the abort rendering flag has been set.
if (state.getAbortRendering())
{
//cout << "early abort"<<endl;
return;
}
if (previous)
{
// apply matrices if required.
state.applyProjectionMatrix(_projection.get());
state.applyModelViewMatrix(_modelview.get());
// apply state if required.
RenderGraph* prev_rg = previous->_parent;
RenderGraph* prev_rg_parent = prev_rg->_parent;
RenderGraph* rg = _parent;
if (prev_rg_parent!=rg->_parent)
{
RenderGraph::moveRenderGraph(state,prev_rg_parent,rg->_parent);
// send state changes and matrix changes to OpenGL.
state.apply(rg->_stateset);
}
else if (rg!=prev_rg)
{
// send state changes and matrix changes to OpenGL.
state.apply(rg->_stateset);
}
// draw the drawable
_drawable->draw(state);
}
else
{
// apply matrices if required.
state.applyProjectionMatrix(_projection.get());
state.applyModelViewMatrix(_modelview.get());
// apply state if required.
RenderGraph::moveRenderGraph(state,NULL,_parent->_parent);
state.apply(_parent->_stateset);
// draw the drawable
_drawable->draw(state);
}
}