View Full Version : how do they DO that?
11-20-2007, 11:08 PM
has anyone noticed just how beautiful the maps are in the demo? I find the ShangriLa map to be especially stunning. Can anyone explain how the waterfall/ waterwheels are done? They are 3d so its not an animated texture yet there is a distortion shimmer effect from/ on the sheet of water in front. What do you call and how do you make such a distortion sheet?
11-20-2007, 11:31 PM
Might be a particle effect - or something similar to the method they used for the biogoop/blood globs
11-21-2007, 02:07 AM
I haven't looked closely at those specific map objects, however, using NormalMaps, Distortion Material, and Particles, are some of the cool new features.
11-21-2007, 08:55 AM
Distortion effects are easy to create - they're just another material property in the editor. Each material has diffuse (texture), opacity, emissive (bloom etc), normal map, specularity map and distortion channels amongst others. You just apply a greyscale texture to the distortion channel of a transparent material and it'll distort things behind it according to the greyscale texture. Add a panning property to the greyscale texture and the distortion moves. The new material editor is amazing - it makes effects like this incredibly easy when you get used to it.
11-21-2007, 01:46 PM
Thanks, it looks like distortion fields are used extensively in UT3 demo and I can't wait to try it, sigh where is my preorder! I shoulda bought it in the store I'd a had it by now! :(
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