this is a follow up question on Obj+mtl model is loaded but is black
the problematic code is here: https://github.com/nbaleli-w/three-js-mtl-obj-black
model is seen as black, after calling child.geometry.computeVertexNormals it disappears.
changing format to gltf fixes these issues, although that will cause a real problem in my setup.
what am I doing wrong ?