This SHOULD be simple… Mac OS 10.9.4, Blender 2.71
I have a cube. I want to give it simple, spotty bumps.
- Unwrap the cube.
- Export UV map.
- Open UV Map with Photoshop. Paint black dots on a transparent layer, deactivate the UV map layer, save as PNG with alpha (see below).
- Back in Blender, New Material, new image texture for that material, Mapping = UV, Flat projection. See screenshot.
- See bumps. NOPE.
What have I not checked?