how does Zbrush map the colour file on the 3D model? I don’t see UV’s. Or are they there?
I have never really understood .mtl file with 3D. I guess.
I am trying to lower the polygon count but keep the texture information.
Zbrush showing up color per vertex , when you export obj it include color per vertex ( poly paint) and UV when exported and separate texture map
I recommend you decrease the amount of polygons/triangles in Revo Scan and texture it after in place of doing it in Zbrush , will be much faster .
Zbrush don’t load mtl automatic, you need to manually import the texture then flip it and apply to the model.