video texture GI problem - video as light source
by carla chan on Apr 22, 2014 at 8:34:53 am
I'm heading a problem of getting right lighting with video texture.
Basically I need to create a dark room with only projection light which the only light source to light up the environment.
1. using luminance channel for the texture with GI. ( NO animation play back when I render, No right lighting )
2. I tired putting the texture to the light. ( I don't know if it is even right way to go)
anyone can help for this problem.
Re: video texture GI problem - video as light source by Brian Jones on Apr 22, 2014 at 2:56:40 pm
to get it to work you need to use Camera Mapping for your texture. Rather than using a light with a texture on it you put the texture on the object that is supposed to receive the video and use Camera Mapping for the Projection in the Texture Tag itself. Basically you use a camera instead of a light to point where the image is going to go. It works because the texture actually goes on the object so luminance can work with GI like it is supposed to.