Hi, I'm new to 3D Coat, and although I'm loving it so far, I've hit an issue I can't seem to find a way around.
I created a material form a separate diffuse and depth textures, and they work great except for the depth painting. No matter what I do, areas 'outside' of the parts carve into (reduce) the depth when I don't want them to. Here's a pic to explain:
On the left is with material overlay, and on the right is without. Both are in relief mode.
Notice how outside of the circular grate the depth map is being reduced over the areas I have painted in.
The depth texture has no depth info in these areas - I'm using a transparent PNG. I have also tried using non-transparent and having black there instead. I also tried mid-point grey too. They all give the same result - they carve into the depth map when what I want to happen is only the non-black, non-transparent areas of the depth map should be used, and they should be raising the depth.
How can I achieve this?