Foliage Back Lighting

Zipfinator

I've been trying to fix the awkward lighting on my trees in my forest scene and it seems like setting them up to use back lighting like this would help a lot. Could anyone show me a quick material setup for something like this? I tried to set it up myself based on some information on UDN and by looking at the foliage in the UDK Foliage Map but it seems like there's multiple ways to do it and I couldn't get it to work with my materials.

Thanks.

divi

http://i48.photobucket.com/albums/f240/Nielsen144/Subsurfacescattering.jpg

i forgot who posted this on here, so all the credit goes to whoever posted that.

haiddasalami

Damn I had that in my folder and no clue where it came from I know its based on a Crytek paper and cant find that now

Zipfinator

Thanks Divi, I'll try that out.

Xendance

Remember to clamp the dot products to 0...1 range, otherwise your plants will also glow when the sunlight is behind the camera.
Here's how Crysis does it: http://http.developer.nvidia.com/GPUGems3/gpugems3_ch16.html

Zipfinator

Thanks Xendance, was wondering why it was so bright at certain angles and areas. Wouldn't have thought to do that.