[Sidefx-houdini-list] N in VOPs

Jeff Wagner jeff at sidefx.com
Tue Mar 25 14:03:20 EDT 2008

You could just add a Compute Normal VOP to the VOP network and control 
it that way and not build this in to your VOP SOP.

Options are obvious.
It just has to exist in the network as it has no outputs.


Andrew D Lyons wrote:
> Did you know?
> In a VOP SOP building context - if you modify P, points that have no surface
> (particles etc) will have their N attribute automatically recomputed to
> {0,0,0} ?
> ... Unless you explicitly wire the input N to the Vopnet output. (In general
> attributes going through VOPs will not have their values changed unless you
> ask it to happen.)
> http://www.sidefx.com/docs/houdini9.1/vex/functions/computenormal
> Cheers

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