I have a low-poly plank, UV'd and with texture and a normal map. I sculpted the hires version for details in zBrush and baked the details on top. I really wanted round corners on the plank and got the desired results with alpha maps. The problem is now that round corners obviously make the object see-through where I don't want it. Is there a way to go around this issue (don't want to re-do all of the work on zBrush, uv map all planks I've done, rebake etc.) or do I just have to live with square corners?
Thanks for any suggestions.