public bool syncAttributes(int asset_id, int object_id, int geo_id, int part_id, Mesh mesh)
{
bool needs_recook = false;
// Fetch all point attributes.
string[] point_attribute_names = HoudiniHost.getAttributeNames(
geo_id, part_id, HAPI_AttributeOwner.HAPI_ATTROWNER_POINT);
foreach (string point_attribute_name in point_attribute_names)
{
if (point_attribute_name == "P")
{
continue;
}
HAPI_AttributeInfo point_attribute_info = HoudiniHost.getAttributeInfo(
geo_id, part_id, point_attribute_name,
HAPI_AttributeOwner.HAPI_ATTROWNER_POINT);
HoudiniGeoAttribute attribute = null;
// If we already have an attribute with the same name, sync it with
// the attribute in Houdini - trying to salvage any data even if the
// attribute storage type, tuple size, or mesh point count has changed.
if (hasAttribute(point_attribute_name))
{
attribute = getAttribute(point_attribute_name);
}
else // Attribute not found.
{
HoudiniGeoAttribute.Type geo_attribute_type = HoudiniGeoAttribute.Type.UNDEFINED;
switch (point_attribute_info.storage)
{
case HAPI_StorageType.HAPI_STORAGETYPE_INT:
geo_attribute_type = HoudiniGeoAttribute.Type.INT; break;
case HAPI_StorageType.HAPI_STORAGETYPE_FLOAT:
geo_attribute_type = HoudiniGeoAttribute.Type.FLOAT; break;
case HAPI_StorageType.HAPI_STORAGETYPE_STRING:
geo_attribute_type = HoudiniGeoAttribute.Type.STRING; break;
}
attribute = createAttribute(point_attribute_name);
attribute.init(
mesh, point_attribute_name, geo_attribute_type,
point_attribute_info.tupleSize);
attribute.prOriginalAttributeOwner = HAPI_AttributeOwner.HAPI_ATTROWNER_POINT;
}
// Sync the values of the Unity attribute with the Houdini attribute.
needs_recook |= attribute.sync(geo_id, part_id, mesh, point_attribute_info);
// If the sync updated the values from the asset we need to refresh our mesh.
if (needs_recook)
{
refreshMesh();
}
}
return(needs_recook);
}
