bool SOP_SceneCacheSource::convertObject( const IECore::Object *object, const std::string &name, const std::string &attributeFilter, GeometryType geometryType, bool hasAnimatedTopology, bool hasAnimatedPrimVars, const std::vector<InternedString> &animatedPrimVars )
{
ToHoudiniGeometryConverterPtr converter = 0;
if ( geometryType == Cortex )
{
converter = new ToHoudiniCortexObjectConverter( object );
}
else
{
const VisibleRenderable *renderable = IECore::runTimeCast<const VisibleRenderable>( object );
if ( !renderable )
{
return false;
}
converter = ToHoudiniGeometryConverter::create( renderable );
}
if ( !converter )
{
return false;
}
// attempt to optimize the conversion by re-using animated primitive variables
const Primitive *primitive = IECore::runTimeCast<const Primitive>( object );
GA_ROAttributeRef nameAttrRef = gdp->findStringTuple( GA_ATTRIB_PRIMITIVE, "name" );
GA_Range primRange = gdp->getRangeByValue( nameAttrRef, name.c_str() );
if ( primitive && !hasAnimatedTopology && hasAnimatedPrimVars && nameAttrRef.isValid() && !primRange.isEmpty() )
{
// this means constant topology and primitive variables, even though multiple samples were written
if ( animatedPrimVars.empty() )
{
return true;
}
GA_Range pointRange( *gdp, primRange, GA_ATTRIB_POINT, GA_Range::primitiveref(), false );
std::string animatedPrimVarStr = "";
for ( std::vector<InternedString>::const_iterator it = animatedPrimVars.begin(); it != animatedPrimVars.end(); ++it )
{
animatedPrimVarStr += it->string() + " ";
}
converter->attributeFilterParameter()->setTypedValue( animatedPrimVarStr );
converter->transferAttribs( gdp, pointRange, primRange );
return true;
}
else
{
gdp->destroyPrimitives( primRange, true );
}
// fallback to full conversion
converter->nameParameter()->setTypedValue( name );
converter->attributeFilterParameter()->setTypedValue( attributeFilter );
return converter->convert( myGdpHandle );
}
bool SOP_SceneCacheSource::convertObject( const IECore::Object *object, const std::string &name, const SceneInterface *scene, Parameters ¶ms )
{
ToHoudiniGeometryConverterPtr converter = 0;
if ( params.geometryType == Cortex )
{
converter = new ToHoudiniCortexObjectConverter( object );
}
else
{
const VisibleRenderable *renderable = IECore::runTimeCast<const VisibleRenderable>( object );
if ( !renderable )
{
return false;
}
converter = ToHoudiniGeometryConverter::create( renderable );
}
if ( !converter )
{
return false;
}
// we need to set the name regardless of whether
// we're reusing prims or doing the full conversion
// because this parameter can have an affect in
// transferAttribs() as well as convert()
converter->nameParameter()->setTypedValue( name );
// check the primitve range map to see if this shape exists already
std::map<std::string, GA_Range>::iterator rIt = params.namedRanges.find( name );
if ( rIt != params.namedRanges.end() && !rIt->second.isEmpty() )
{
GA_Range primRange = rIt->second;
const Primitive *primitive = IECore::runTimeCast<const Primitive>( object );
if ( primitive && !params.hasAnimatedTopology && params.hasAnimatedPrimVars )
{
// this means constant topology and primitive variables, even though multiple samples were written
if ( params.animatedPrimVars.empty() )
{
return true;
}
GA_Range pointRange( *gdp, primRange, GA_ATTRIB_POINT, GA_Range::primitiveref(), false );
// update the animated primitive variables only
std::string animatedPrimVarStr = "";
for ( std::vector<InternedString>::const_iterator it = params.animatedPrimVars.begin(); it != params.animatedPrimVars.end(); ++it )
{
animatedPrimVarStr += it->string() + " ";
}
converter->attributeFilterParameter()->setTypedValue( animatedPrimVarStr );
try
{
converter->transferAttribs( gdp, pointRange, primRange );
return true;
}
catch ( std::exception &e )
{
addWarning( SOP_MESSAGE, e.what() );
return false;
}
catch ( ... )
{
addWarning( SOP_MESSAGE, "Attribute transfer failed for unknown reasons" );
return false;
}
}
else
{
// topology is changing, so destroy the exisiting primitives
gdp->destroyPrimitives( primRange, true );
}
}
// fallback to full conversion
converter->attributeFilterParameter()->setTypedValue( params.attributeFilter );
try
{
GA_Offset firstNewPrim = gdp->getPrimitiveMap().lastOffset() + 1;
bool status = converter->convert( myGdpHandle );
if ( params.fullPathName != "" )
{
// adds the full path in addition to the relative name
const GA_IndexMap &primMap = gdp->getPrimitiveMap();
GA_Range newPrims( primMap, firstNewPrim, primMap.lastOffset() + 1 );
if ( newPrims.isValid() )
{
std::string fullName;
SceneInterface::Path path;
scene->path( path );
SceneInterface::pathToString( path, fullName );
GA_RWAttributeRef pathAttribRef = ToHoudiniStringVectorAttribConverter::convertString( params.fullPathName, fullName, gdp, newPrims );
status = status && pathAttribRef.isValid();
}
}
return status;
}
catch ( std::exception &e )
{
addWarning( SOP_MESSAGE, e.what() );
return false;
}
catch ( ... )
{
addWarning( SOP_MESSAGE, "Conversion failed for unknown reasons" );
return false;
}
}