Fake caustic ?

[BadIdea]

Hello.
I have a tunnel with water. how can I add a kind of caustic on the walls?
( I can modyfy existing wall/brick shader - add next stage with clouds/noise texture )
But I'am thinking about a universal caustic trick like decals - full transparent with a moving texture.
Or light projector?

[ydnar]

Quake 3 shipped with a number of shaders with light caustics on them. If you can dredge it up, Id released a map called "Museum" that demonstrated this exact effect.

y

[BadIdea]

thx:)

[rgoer]

ftp://ftp.idsoftware.com/idstuff/quake3/tools/q3toolsetup_mar172000.exe

[BadIdea]

:drink:
Downloading.