[Sidefx-houdini-list] normals

zoran arizanovic zoran.arizanovic at gmail.com
Thu May 10 04:02:29 EDT 2007


both are elegant solutions :)
I use point sop-$TX2-$TX a lot and works in most cases
thanks
z

On 5/10/07, jason lam <j.lam81 at gmail.com> wrote:
>
> 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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-- 
Zoran Arizanovic
http://arizanovic.blogspot.com/



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