I'm curious about pyro material “displacements” and rest attribute
for displacements, I guess it need a Normal attribute to work. but I have no idea how to create normal for volume. for rest, I turn on “enable rest” in pyrosover. but I did't see rest created in information, pyrosover and dopI/O node both not.
For the rest fields, you also have to enable it on the pyro object under the Initial Data tab / Add Rest Field.
For the N field, I believe you can get the gradient of the field by using the Volume Analysis sop, and use that to drive displacement. I haven't played with it much, but I do recalling having some issues with this a while back, and couldn't seem to use N (even if the gradient field was called N), but customizing the name of the field seemed to work fine.
