I was doing a little test of the new functions in the 3.1 beta 6 release. There's a little bug with < and >, they're reversed. Andy will fix next beta.
For now here's what I got for a colormap:
TestGT.txt
Simple but it works. The new functions are documented atC0="max(cos(t*.5),cos(t*.3))"
R="((float)(i < .5))*i",
G="i*( (float)(c0 < .4 && c0 > .79) )"
B="( (float) ( (i < .25) && (i > .85) ) )* (i + ((float) (sin(t) < .29) && (sin(t) > .5)) )"
http://www.soundspectrum.com/g-force/Do ... mming.html
Have fun!
Edited the face out of the math....