[Sidefx-houdini-list] normals

jason lam j.lam81 at gmail.com
Wed May 9 21:54:26 EDT 2007


Bonus, thanks guys
i ended up using the extrude sop

i was trying the point sop which is super powerful, but i dont know
the math to rotate them - i know i can use cross product to find
perpediculr to where they are now, but not how to make each on go perp
to outline.

thanks again!

cheers

jais


On 5/10/07, Jerry Corda-Stanley <jerry at intelligentcreatures.com> wrote:
> Simon's suggestion with the extrude SOP is good.
> Just extrude without front and back face and do not convert to mesh.
> Pipe that into a facet SOP and compute normals, than carve back down
> to original outline.
>
>
> ----- "jason lam" <j.lam81 at gmail.com> wrote:
> > Hey guys
> >
> > i've got a trace sop which nicely traces my input image, however with
> > the points that it generates, the normals face uniformly out in Z and
> > not point 'out' of the shape if you get what i'm saying.
> > how do it turn the normals so that they point outwards?
> >
> > cheers
> >
> > Jason
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