If you're using 3.5, try basing it on this...
#declare boxesfunc = function{max(x-int(x),y-int(y),z-int(z))}
function {select(boxesfunc(x,y,z)-.5,1-boxesfunc(x,y,z),boxesfunc(x,y,z))}
That code may or may not work, I didn't test it...
- Slime
[ http://www.slimeland.com/ ]
[ http://www.slimeland.com/images/ ]
