AnsweredAssumed Answered

FBO blending corruption

Question asked by swoop on Mar 8, 2012
Latest reply on Dec 17, 2012 by nightz85

Ive been getting this problem on my AMD 5870 card for a couple of driver releases now (at least since 11.9), the recent 12.2 drivers dont seem to change much.

I have an OpenGL FBO with an attached depth/stencil texture, and two color texture rectangle. I then attach and share the depth/stencil texture from the first FBO with another FBO, which itself has another four texture rectangles attached, this is for a deferred rendering setup.

Once the scene is drawn and lighting is blended in on the second FBO, with the depth/stencil and a single color texture active, I forward render some blended quads (shaders off), when quads intersect with the existing world it produces a checker pattern not seen on my other non amd card. See attached image.