In my animation, the photon intensity value under my mental ray tab of my direction light, changes as time goes by. I've 'set key' the photon intensity at different frame numbers. As the frame number changes, so does the Photon Intensity value. As I want it to do.
The problem I'm having is that it makes no difference in the rendered image result! I seems to instead, only remember my last photon intensity value input. It's not listening to the changing to the intensity value!
Any suggestions? All help will be appreciated!