[Sidefx-houdini-list] Rman VOP displace shader
ld at dneg.com
Mon Jun 18 13:35:07 EDT 2007
You'll notice the offset input is set to be a point rather than a
vector. PRman transforms that as the camera moves.
Bad SESI >:o .. naughty naughty....
just pass in the offset as 3 floats and combine them! 8-)
Sean Lewkiw wrote:
> I've built an RMAN VOP displacement shader using the VOP aanoise.
> When I animate the camera, the noise moves. So I added an
> rsl_transform node, from "current" to "world". Still moves. Tried an
> in-line VOP with:
> ... no joy. Tried: vtransform("current", "world", P);
> ... no joy. Then I tried to pipe the first transform above into
> another in-line VOP with
> noise(pp*10) * .2;
> ... and it works, the noise sticks. Is the Houdini RMAN aanoise VOP
> broken? (I see lots of space change warnings in my .err files about
> the voplib.h files.)
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