Print at Dec 21, 2025, 1:48:45 PM

Posted by MikeJGee at Apr 24, 2019, 1:46:59 PM
Re: Missing surfaces on imported models.
Hi Baldy,

There are two basic questions on Your Model:
1. What render engine do You use in Blender (mght be also fine to know what Blender Version)
2. You used the extrude for the rail, as a modifier?

Both things will make it uneasy to get the right OBJ (MTLs) out of Blender.

So first rule of thumb: Do not use cycles and here do not use procedural textures, they will not come into OBJ and MTL
Seccond, apply all modifiers, prior to export.
third: Blender has some issues with the MTL creation on Texture pictures. The propriate lines are not included into the mtl.