// general cortex render function, takes a gu_detail and uses the NodePassData attribute
// to call the required render method
void GR_Cortex::render( GU_Detail *gdp, const IECoreGL::State *displayState )
{
// gl scene from a parameterised procedural
const GA_ROAttributeRef attrRef = gdp->findAttribute( GA_ATTRIB_DETAIL, GA_SCOPE_PRIVATE, "IECoreHoudiniNodePassData" );
if ( attrRef.isInvalid() )
{
return;
}
const GA_Attribute *attr = attrRef.getAttribute();
const GA_AIFBlindData *blindData = attr->getAIFBlindData();
const NodePassData passData = blindData->getValue<NodePassData>( attr, 0 );
switch( passData.type() )
{
case IECoreHoudini::NodePassData::CORTEX_OPHOLDER :
{
SOP_OpHolder *sop = dynamic_cast<SOP_OpHolder*>( const_cast<OP_Node*>( passData.nodePtr() ) );
if ( !sop )
{
return;
}
IECore::OpPtr op = IECore::runTimeCast<IECore::Op>( sop->getParameterised() );
if ( !op )
{
return;
}
const IECore::Parameter *result_parameter = op->resultParameter();
const IECore::Object *result_object = result_parameter->getValue();
renderObject( result_object, displayState );
break;
}
case IECoreHoudini::NodePassData::CORTEX_PROCEDURALHOLDER :
{
SOP_ProceduralHolder *sop = dynamic_cast<SOP_ProceduralHolder*>( const_cast<OP_Node*>( passData.nodePtr() ) );
if ( !sop )
{
return;
}
IECoreGL::ConstScenePtr scene = sop->scene();
if ( !scene )
{
return;
}
scene->render( const_cast<IECoreGL::State *>( displayState ) );
break;
}
default :
{
break;
}
}
}
ObjectPtr FromHoudiniGroupConverter::doConversion( ConstCompoundObjectPtr operands ) const
{
GU_DetailHandleAutoReadLock readHandle( handle() );
const GU_Detail *geo = readHandle.getGdp();
if ( !geo )
{
return 0;
}
size_t numResultPrims = 0;
size_t numOrigPrims = geo->getNumPrimitives();
GroupPtr result = new Group();
if ( operands->member<const IntData>( "groupingMode" )->readable() == NameAttribute )
{
GA_ROAttributeRef attributeRef = geo->findPrimitiveAttribute( "name" );
if ( attributeRef.isInvalid() || !attributeRef.isString() )
{
GU_Detail ungroupedGeo( (GU_Detail*)geo );
GA_PrimitiveGroup *ungrouped = static_cast<GA_PrimitiveGroup*>( ungroupedGeo.createInternalElementGroup( GA_ATTRIB_PRIMITIVE, "FromHoudiniGroupConverter__ungroupedPrimitives" ) );
ungrouped->toggleRange( ungroupedGeo.getPrimitiveRange() );
VisibleRenderablePtr renderable = 0;
doGroupConversion( &ungroupedGeo, ungrouped, renderable, operands );
if ( renderable )
{
Group *group = runTimeCast<Group>( renderable );
if ( group )
{
const Group::ChildContainer &children = group->children();
for ( Group::ChildContainer::const_iterator it = children.begin(); it != children.end(); ++it )
{
result->addChild( *it );
}
}
else
{
result->addChild( renderable );
}
}
return result;
}
GU_Detail groupGeo( (GU_Detail*)geo );
AttributePrimIdGroupMap groupMap;
regroup( &groupGeo, groupMap, attributeRef );
for ( AttributePrimIdGroupMapIterator it=groupMap.begin(); it != groupMap.end(); ++it )
{
convertAndAddPrimitive( &groupGeo, it->second, result, operands, it->first.first );
}
}
else
{
for ( GA_GroupTable::iterator<GA_ElementGroup> it=geo->primitiveGroups().beginTraverse(); !it.atEnd(); ++it )
{
GA_PrimitiveGroup *group = static_cast<GA_PrimitiveGroup*>( it.group() );
if ( group->getInternal() || group->isEmpty() )
{
continue;
}
VisibleRenderablePtr renderable = 0;
numResultPrims += doGroupConversion( geo, group, renderable, operands );
if( !renderable )
{
continue;
}
renderable->blindData()->member<StringData>( "name", false, true )->writable() = group->getName().toStdString();
result->addChild( renderable );
}
if ( numOrigPrims == numResultPrims )
{
return result;
}
GU_Detail ungroupedGeo( (GU_Detail*)geo );
GA_PrimitiveGroup *ungrouped = static_cast<GA_PrimitiveGroup*>( ungroupedGeo.createInternalElementGroup( GA_ATTRIB_PRIMITIVE, "FromHoudiniGroupConverter__ungroupedPrimitives" ) );
for ( GA_GroupTable::iterator<GA_ElementGroup> it=geo->primitiveGroups().beginTraverse(); !it.atEnd(); ++it )
{
*ungrouped |= *static_cast<GA_PrimitiveGroup*>( it.group() );
}
ungrouped->toggleRange( ungroupedGeo.getPrimitiveRange() );
if ( ungrouped->isEmpty() )
{
return result;
}
VisibleRenderablePtr renderable = 0;
doGroupConversion( &ungroupedGeo, ungrouped, renderable, operands );
if ( renderable )
{
result->addChild( renderable );
}
}
return result;
}