#flipcode

If I start a render and has set the dispersion for the background to \"0 0 0\", warmup never completes. I don\'t think I have any other lights in the scene. This is not a huge problem, since a dark scene (read: BLACK) is completely useless anyway, but it would be nice with a proper error message of some sort. Setting the dispersion value to anything higher than 0 returns it to normal operation.