[Sidefx-houdini-list] COP beginner question

Olivier Jeannel facialdeluxe at gmail.com
Mon Aug 22 08:21:03 EDT 2016


Ah cool ! Thank you :)

On Mon, Aug 22, 2016 at 2:04 PM, Ron Schab <ron.schab at gmail.com> wrote:

> Hey Olivier,
>
> one of the ways would be to use a Vop Cop (vop cop filter).
>
> U could use X & Y from your globals to drive the position of a noise vop
> (i.e. turbulent or whatever) and any way of combining or singling out your
> RGB values from your globals to drive the amplitude of said noise, which
> output you then plug back into your rgb values of your output :).
>
> hope that is what u are looking for?
> cheers
>
>
>
>
> On Mon, Aug 22, 2016 at 1:43 PM, Olivier Jeannel <facialdeluxe at gmail.com>
> wrote:
>
> > Hi list :)
> >
> > I'm trying to use the COP, and I have a very basic question.
> >
> > With a Ramp node I draw a concentric ramp (a circle with a gradient on
> the
> > edges)
> >
> > Below I added a Noise node.
> >
> > I would like to drive the Amplitude channel of the Noise with the color
> > values of the previous Gradient.
> >
> > I tried C.r C.g C.b in the amplitude channels but that couldn't be so
> > simple ;)
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