void
TileNode::merge(const TerrainTileModel* model, const RenderBindings& bindings)
{
// Add color passes:
const SamplerBinding& color = bindings[SamplerBinding::COLOR];
if (color.isActive())
{
for (TerrainTileImageLayerModelVector::const_iterator i = model->colorLayers().begin();
i != model->colorLayers().end();
++i)
{
TerrainTileImageLayerModel* layer = i->get();
if (layer && layer->getTexture())
{
RenderingPass* pass = _renderModel.getPass(layer->getImageLayer()->getUID());
if (!pass)
{
pass = &_renderModel.addPass();
pass->_layer = layer->getImageLayer();
pass->_imageLayer = layer->getImageLayer();
pass->_sourceUID = layer->getImageLayer()->getUID();
// This is a new pass that just showed up at this LOD
// Since it just arrived at this LOD, make the parent the same as the color.
if (bindings[SamplerBinding::COLOR_PARENT].isActive())
{
pass->_samplers[SamplerBinding::COLOR_PARENT]._texture = layer->getTexture();
pass->_samplers[SamplerBinding::COLOR_PARENT]._matrix.makeIdentity();
}
}
pass->_samplers[SamplerBinding::COLOR]._texture = layer->getTexture();
pass->_samplers[SamplerBinding::COLOR]._matrix.makeIdentity();
// Handle an RTT image layer:
if (layer->getImageLayer() && layer->getImageLayer()->createTextureSupported())
{
// Check the texture's userdata for a Node. If there is one there,
// render it to the texture using the Tile Rasterizer service.
// TODO: consider hanging on to this texture and not applying it to
// the live tile until the RTT is complete. (Prevents unsightly flashing)
GeoNode* rttNode = dynamic_cast<GeoNode*>(layer->getTexture()->getUserData());
if (rttNode)
{
_context->getTileRasterizer()->push(rttNode->_node.get(), layer->getTexture(), rttNode->_extent);
}
}
}
}
}
// Elevation:
const SamplerBinding& elevation = bindings[SamplerBinding::ELEVATION];
if (elevation.isActive() && model->elevationModel().valid() && model->elevationModel()->getTexture())
{
osg::Texture* tex = model->elevationModel()->getTexture();
// always keep the elevation image around because we use it for bounding box computation:
tex->setUnRefImageDataAfterApply(false);
_renderModel._sharedSamplers[SamplerBinding::ELEVATION]._texture = tex;
_renderModel._sharedSamplers[SamplerBinding::ELEVATION]._matrix.makeIdentity();
setElevationRaster(tex->getImage(0), osg::Matrixf::identity());
}
// Normals:
const SamplerBinding& normals = bindings[SamplerBinding::NORMAL];
if (normals.isActive() && model->normalModel().valid() && model->normalModel()->getTexture())
{
osg::Texture* tex = model->normalModel()->getTexture();
// keep the normal map around because we might update it later in "ping"
tex->setUnRefImageDataAfterApply(false);
_renderModel._sharedSamplers[SamplerBinding::NORMAL]._texture = tex;
_renderModel._sharedSamplers[SamplerBinding::NORMAL]._matrix.makeIdentity();
updateNormalMap();
}
// Other Shared Layers:
for (unsigned i = 0; i < model->sharedLayers().size(); ++i)
{
TerrainTileImageLayerModel* layerModel = model->sharedLayers().at(i);
if (layerModel->getTexture())
{
// locate the shared binding corresponding to this layer:
UID uid = layerModel->getImageLayer()->getUID();
unsigned bindingIndex = INT_MAX;
for(unsigned i=SamplerBinding::SHARED; i<bindings.size() && bindingIndex==INT_MAX; ++i) {
if (bindings[i].isActive() && bindings[i].sourceUID().isSetTo(uid)) {
bindingIndex = i;
}
}
if (bindingIndex < INT_MAX)
{
osg::Texture* tex = layerModel->getTexture();
_renderModel._sharedSamplers[bindingIndex]._texture = tex;
_renderModel._sharedSamplers[bindingIndex]._matrix.makeIdentity();
}
}
}
// Patch Layers
for (unsigned i = 0; i < model->patchLayers().size(); ++i)
{
TerrainTilePatchLayerModel* layerModel = model->patchLayers().at(i);
}
if (_childrenReady)
{
getSubTile(0)->refreshInheritedData(this, bindings);
getSubTile(1)->refreshInheritedData(this, bindings);
getSubTile(2)->refreshInheritedData(this, bindings);
getSubTile(3)->refreshInheritedData(this, bindings);
}
}
TileNode*
TileGroupFactory::createTileNode(TerrainTileModel* model,
ProgressCallback* progress)
{
TileNode* tileNode = new TileNode(model);
for(TerrainTileImageLayerModelVector::const_iterator i = model->colorLayers().begin();
i != model->colorLayers().end();
++i)
{
const TerrainTileLayerModel* layer = i->get();
if ( layer->getTexture() )
{
osg::StateSet* stateSet = tileNode->getOrCreateStateSet();
stateSet->setTextureAttribute(
_renderBindings.color().unit(),
layer->getTexture() );
// (note: sampler uniform is set at the top level by the engine)
}
if ( layer->getMatrix() )
{
osg::StateSet* stateSet = tileNode->getOrCreateStateSet();
stateSet->addUniform( new osg::Uniform(
_renderBindings.color().matrixName().c_str(),
*(layer->getMatrix())) );
}
}
if ( model->elevationModel() )
{
const TerrainTileElevationModel* em = model->elevationModel();
if ( em->getTexture() )
{
osg::StateSet* stateSet = tileNode->getOrCreateStateSet();
stateSet->setTextureAttribute(
_renderBindings.elevation().unit(),
em->getTexture() );
osg::Matrixf elevMatrix;
if ( em->getMatrix() )
elevMatrix = *(em->getMatrix());
stateSet->addUniform( new osg::Uniform(
_renderBindings.elevation().matrixName().c_str(),
elevMatrix ));
// (note: sampler uniform is set at the top level by the engine)
}
}
for(TerrainTileImageLayerModelVector::const_iterator i = model->sharedLayers().begin();
i != model->sharedLayers().end();
++i)
{
const TerrainTileImageLayerModel* layerModel = i->get();
const ImageLayer* imageLayer = layerModel->getImageLayer();
if ( imageLayer )
{
if ( layerModel->getTexture() )
{
osg::StateSet* stateSet = tileNode->getOrCreateStateSet();
stateSet->setTextureAttribute(
imageLayer->shareImageUnit().get(),
layerModel->getTexture() );
//TODO: don't really need this if we set it up in the Engine
// once at the top level when adding the layer.
stateSet->addUniform( new osg::Uniform(
imageLayer->shareSamplerName()->c_str(),
imageLayer->shareImageUnit().get() ));
}
if ( layerModel->getMatrix() )
{
osg::StateSet* stateSet = tileNode->getOrCreateStateSet();
stateSet->addUniform( new osg::Uniform(
imageLayer->shareMatrixName()->c_str(),
*(layerModel->getMatrix())) );
}
}
}
return tileNode;
}
