I'm trying to load complex objects into three.js using the OBJMTLLoader from three.js, with double-sided materials. I've found the following solution, it works, but it's pretty old, and seems a little inefficient (if there's multiple levels of parent-child relationships for 100's of children).
Is there a flag or option, or generally more efficient method that I can use to set the .side property when using the .load() function for the objMTLLoader?