I am trying to write a plugin that uses the rate of change of facing ratio, but nothing I try seems to work. All I need to do is get the values for point camera and normal camera near to the point being rendered, but I haven't been able to do that. I have managed to super sample the input colour by editing the UV values as render sources, but this didn't seem to work for the attributes that I want. Can anyone suggest a way to super sample these values? (or a totally different method to get the change in facing ratio - I'll try anything!)
wouldnt it be easier to just make the damn thing as a post production plug, it might be faster to figure out?