void
LogarithmicDepthBuffer::uninstall(osg::Camera* camera)
{
if ( camera && _supported )
{
SetFarPlaneUniformCallback* dc = dynamic_cast<SetFarPlaneUniformCallback*>(camera->getPreDrawCallback());
if ( dc )
{
osg::ref_ptr<osg::Camera::DrawCallback> next = dc->_next.get();
camera->setPreDrawCallback( next.get() );
}
osg::StateSet* stateset = camera->getStateSet();
if ( stateset )
{
VirtualProgram* vp = VirtualProgram::get( camera->getStateSet() );
if ( vp )
{
Shaders pkg;
pkg.unloadFunction( vp, pkg.LogDepthBuffer_FragFile );
pkg.unloadFunction( vp, pkg.LogDepthBuffer_VertFile );
pkg.unloadFunction( vp, pkg.LogDepthBuffer_VertOnly_VertFile );
}
stateset->removeUniform( FC_UNIFORM );
stateset->removeUniform( C_UNIFORM );
}
}
}
void
BumpMapTerrainEffect::onUninstall(TerrainEngineNode* engine)
{
osg::StateSet* stateset = engine->getStateSet();
if ( stateset )
{
if ( _bumpMapTex.valid() )
{
stateset->removeUniform("oe_bumpmap_maxRange");
stateset->removeUniform("oe_bumpmap_octaves");
stateset->removeUniform( _scaleUniform.get() );
stateset->removeUniform( _intensityUniform.get() );
stateset->removeUniform( _bumpMapTexUniform.get() );
stateset->removeTextureAttribute( _bumpMapUnit, osg::StateAttribute::TEXTURE );
}
VirtualProgram* vp = VirtualProgram::get(stateset);
if ( vp )
{
Shaders pkg;
pkg.unloadFunction( vp, pkg.VertexModel );
pkg.unloadFunction( vp, pkg.VertexView );
pkg.unloadFunction( vp, pkg.FragmentSimple );
pkg.unloadFunction( vp, pkg.FragmentProgressive );
}
}
if ( _bumpMapUnit >= 0 )
{
engine->getResources()->releaseTextureImageUnit( _bumpMapUnit );
_bumpMapUnit = -1;
}
}
void
DepthOffsetAdapter::setGraph(osg::Node* graph)
{
if ( !_supported ) return;
bool graphChanging =
_graph.get() != graph;
bool uninstall =
(_graph.valid() && _graph->getStateSet()) &&
(graphChanging || (_options.enabled() == false));
bool install =
(graph && graphChanging ) ||
(graph && (_options.enabled() == true));
// shader package:
Shaders shaders;
if ( uninstall )
{
OE_TEST << LC << "Removing depth offset shaders" << std::endl;
// uninstall uniforms and shaders.
osg::StateSet* s = _graph->getStateSet();
s->removeUniform( _minBiasUniform.get() );
s->removeUniform( _maxBiasUniform.get() );
s->removeUniform( _minRangeUniform.get() );
s->removeUniform( _maxRangeUniform.get() );
shaders.unloadFunction( VirtualProgram::get(s), shaders.DepthOffsetVertex );
}
if ( install )
{
OE_TEST << LC << "Installing depth offset shaders" << std::endl;
// install uniforms and shaders.
osg::StateSet* s = graph->getOrCreateStateSet();
s->addUniform( _minBiasUniform.get() );
s->addUniform( _maxBiasUniform.get() );
s->addUniform( _minRangeUniform.get() );
s->addUniform( _maxRangeUniform.get() );
shaders.loadFunction(VirtualProgram::getOrCreate(s), shaders.DepthOffsetVertex);
}
if ( graphChanging )
{
_graph = graph;
}
// always set Dirty when setGraph is called sine it may be called anytime
// the subgraph changes (as can be detected by a computeBound)
_dirty = (_options.automatic() == true);
}
void
GraticuleTerrainEffect::onUninstall(TerrainEngineNode* engine)
{
osg::StateSet* stateset = engine->getTerrainStateSet();
if ( stateset )
{
VirtualProgram* vp = VirtualProgram::get(stateset);
if ( vp )
{
Shaders package;
package.unloadFunction( vp, package.Graticule_Vertex );
package.unloadFunction( vp, package.Graticule_Fragment );
stateset->removeUniform( GraticuleOptions::resolutionUniformName() );
stateset->removeUniform( GraticuleOptions::colorUniformName() );
stateset->removeUniform( GraticuleOptions::lineWidthUniformName() );
}
}
}
void
NormalMapTerrainEffect::onUninstall(TerrainEngineNode* engine)
{
osg::StateSet* stateset = engine->getStateSet();
if ( stateset )
{
VirtualProgram* vp = VirtualProgram::get(stateset);
if ( vp )
{
Shaders package;
package.unloadFunction( vp, package.Vertex );
package.unloadFunction( vp, package.Fragment );
}
stateset->removeUniform( NORMAL_SAMPLER );
}
if ( _normalMapUnit >= 0 )
{
engine->getResources()->releaseTextureImageUnit( _normalMapUnit );
_normalMapUnit = -1;
}
}
