Trying to create a rough skin on my design. Is there a tool that does that. Tried the google machine, didn’t find anything. Thanks!
I just got a subscription to Adobe. It doesn’t include the 3D tools, but I noticed they had a texture tool called Pt Substance 3D Painter. Making actual bumps on 3D models increases the file size exponentially.
Have a look here 
Texture and bump or displacement maps are the way to do it, but it can’t be done in Shapr. You can do it in Photoshop if you have it. Your model will need a UV map first, which can be done in the free UV Mapper.