max world displacement modifier

SHEPEIRO

right ive got a nice height map out of Xnormal, when i apply it as a modifier in max i only get the positive normal push, not the negative, am i being stupid, how do you get it to push both ways?

I need it to be a modifier so i can optimise the underlying mesh correctly

MoP

make sure you've set the modifier's luminance mid point to 0.5 ... if it's 0.0 then it will only push out, if it's 1.0 then it will only push in. 0.5 will use mid grey as mid height.

SHEPEIRO

cheers but that dosnt work for me, was the first thing i tried.

and im using hdr maps so ?mid grey?

Ive just got it going both ways by adjusting the colourmap in max from 0-1 to -1-1, this makes it displace in both directions......

....but... im getting billowing along the lowpoly mesh lines?

SHEPEIRO

ah fixed, used the world based modifier instead, this divides without smoothing, yay