The only workable way that I’ve found, of positioning decals, and other little texture details, is through trial and error. Bake texture, tweak a little, bake again, adjust, etc, until it’s where I want it. I’m running into an annoying problem with this, and texture baking in general, though. When baking textures, I have the 3D view in ‘textured’ view so I can see the results. But sometimes, the results just… don’t apply.
After a bake, the new texture shows in the UV/image editor window, but the model in the 3D view doesn’t update. It’s in textured view, and it just continues showing the old texture form the previous bake. What’s especially frustrating, is that this seems random. It happens for no discernible reason, and I have to quit and restart blender to make the 3d view start updating again. I’m using blender v2.47 atm, in case it’s relevant. Any advice as to what might be wrong?