void visit( DashRenderNode& renderNode, VisitState& state ) final
{
const LODNode& lodNode = renderNode.getLODNode();
if( !renderNode.isInFrustum( ))
state.setVisitChild( false );
if( renderNode.isLODVisible( ))
{
currentVisibleSet_.insert( lodNode.getNodeId().getId( ));
state.setVisitChild( false );
}
}
void visit( const LODNode& lodNode, VisitState& state )
{
const Boxf& worldBox = lodNode.getWorldBox();
if( !_frustum.isInFrustum( worldBox ) || _clipPlanes.isClipped( worldBox ))
{
state.setVisitChild( false );
return;
}
Vector3f vmin, vmax;
const Plane& nearPlane = _frustum.getNearPlane();
worldBox.computeNearFar( nearPlane, vmin, vmax );
Vector4f hVmin = vmin;
hVmin[ 3 ] = 1.0f;
Vector4f hVmax = vmax;
hVmax[ 3 ] = 1.0f;
// The bounding box intersects the plane
if( _frustum.getNearPlane().dot( hVmin ) < 0 ||
_frustum.getNearPlane().dot( hVmax ) < 0 )
{
// Where eye direction intersects with near plane
vmin = _frustum.getEyePos() - _frustum.getViewDir() * _frustum.nearPlane();
}
const Vector3f& voxelBox = lodNode.getVoxelBox().getSize();
const Vector3f& worldSpacePerVoxel = worldBox.getSize() / voxelBox;
bool lodVisible = isLODVisible( vmin, worldSpacePerVoxel.find_min( ));
const VolumeInformation& volInfo = _dataSource.getVolumeInfo();
const uint32_t depth = volInfo.rootNode.getDepth();
lodVisible = ( lodVisible && lodNode.getRefLevel() >= _minLOD )
|| ( lodNode.getRefLevel() == _maxLOD )
|| ( lodNode.getRefLevel() == depth - 1 );
if( lodVisible )
_visibles.push_back( lodNode.getNodeId( ));
state.setVisitChild( !lodVisible );
}
void TextureLoaderVisitor::visit( DashRenderNode& renderNode, VisitState& state )
{
const LODNode& lodNode = renderNode.getLODNode();
if( !lodNode.isValid( ))
return;
if( !renderNode.isInFrustum( ))
{
state.setVisitChild( false );
return;
}
if( !renderNode.isLODVisible( ))
return;
state.setVisitChild( false );
const ConstCacheObjectPtr texPtr = renderNode.getTextureObject();
if( texPtr->isLoaded( ))
return;
TextureObject& texture = _cache.getNodeTexture( lodNode.getNodeId().getId( ));
if( texture.isLoaded() )
{
renderNode.setTextureObject( &texture );
_output->commit( CONNECTION_ID );
return;
}
else
{
const ConstCacheObjectPtr textureData = renderNode.getTextureDataObject();
if( textureData->isLoaded( ))
{
#ifdef _ITT_DEBUG_
__itt_task_begin ( ittTextureLoadDomain, __itt_null, __itt_null,
ittTextureLoadTask );
#endif //_ITT_DEBUG_
TextureObject& lodTexture = _cache.getNodeTexture( lodNode.getNodeId().getId( ));
lodTexture.setTextureDataObject(
static_cast< const TextureDataObject * >( textureData.get() ) );
lodTexture.cacheLoad();
#ifdef _ITT_DEBUG_
__itt_task_end( ittTextureLoadDomain );
#endif //_ITT_DEBUG_
renderNode.setTextureObject( &lodTexture );
renderNode.setTextureDataObject( TextureDataObject::getEmptyPtr() );
_output->commit( CONNECTION_ID );
_needRedraw = true;
}
else
{
_allLoaded = false;
LBVERB << "Texture data not loaded:" << lodNode.getNodeId() << std::endl;
}
}
if( !isSynchronous( ))
// only in asynchronous mode
state.setBreakTraversal( _input->dataWaitingOnInput( CONNECTION_ID ));
}
