I'm trying to render some paints over a glowing texture (basically simulating paint on a frosted surface that has back-light on it) and it is working in Renderworks. However, when I view the same objects in OpenGL I end up with a blank surface per my second image.    Is there something I'm doing wrong? Decals seem like the right approach for this workflow and I would love to be able to set them in OpenGL rather than swapping to Fast Renderworks to set position as it is, for obvious rea