Can anyone point me in the direction of some convincing grass material/shader? The one’s I have are crap and I think VRay demands something better.
Cheers!
Zap
Just make a noisy image in PS and use it for displacement. Then add a green material (or some grass image you found somewhere and put it in the diffuse slot)
points to displacement tutorial:
Re: grass needed!
There’s a small tutorial about this on VRay.info
http://vray.info/entry.asp?entryID=49
and a great tutorial how to use it…c>>>
http://www.3dm-mc.com/tutorials/grass/
one of the best free plug!
here’s a really good thread for creating 3d grass:
http://www.cgarchitect.com/cgi-bin/ultimatebb.cgi?ubb=get\_topic;f=23;t=000001
How real?
Zapcat: How are you doing the grass? How close are you going to get to it? What kind of grass and how healthy(green or brown) is it?
If you need some extreme closeups on individual blades then you’ll need a bump/displacement map for the vertical “veins”/ridges that run to the tip from the base. Also depending on the types of grass, how healthy it is, and the lighting you can throw in some SSS to get that translucent effect thin objects get when lit from behind.