View Full Version : Making a Self-Illuminating Plane
11-09-2005, 03:09 AM
Hi there, I am learning how to do different types of lighting, and have found two scenes of a persons setup. In each setup there are planes that give off light. I have no idea how to do this. I have linked 2 pictures of the persons setup.
Setup 1 (http://img174.imageshack.us/img174/6130/lighting0kf.jpg)
Setup 2 (http://img174.imageshack.us/img174/5600/lightingsetup7ic.jpg)
Setup 3 (http://img174.imageshack.us/img174/4925/setup12jl.jpg)
Any answers would be greatly appreciated.
11-09-2005, 06:35 AM
Put a Lambert material on the plane you want to emit light, and bring up the incandescence. Make sure you're rendering in mentalray, and tick the "final gathering" checkbox in the render globals. Start with the default settings, then play with the incandescence on the plane. Remember, you can set the incandescence above 1... That's a rough start to making pretty pictures in mentalray!
11-09-2005, 09:18 PM
I'd actually reccomend using a surface shader rather than lambert (at least if you're going for a light that is bright enough to override any incomming illumination). Since the surface shader bypasses the shading engine entirely and simply draws the output values as is, it tends render a bit faster.
Another way to achieve the same effect without having to use final gather is to use MR area lights with the visible option checked.
11-09-2005, 09:19 PM
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