Esempio n. 1
0
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();
}
Esempio n. 2
0
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) );
}
Esempio n. 3
0
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) );
}