[Sidefx-houdini-list] Noise

Boris Cohen Tanugi b.cohen.tanugi at gmail.com
Tue Aug 30 03:43:29 EDT 2016


Hey Olivier,
Just store it in an attrib to check min max. You can to a 2 pass fit
(setting noise, then promote to detail min/max, then fit the result
accordingly)

2016-08-30 9:36 GMT+02:00 Olivier Jeannel <facialdeluxe at gmail.com>:

> I understand. But sometimes (always) you're deep down in vop and all you
> want is add a little bit of turbulence.
> Am I wrong or is it not possible to get the max-out and min-out values
> coming out from noise node ? So that you know what to fit..
>
> Le 30 août 2016 02:41, "François Duchesneau" <sidefx at trinix.ca> a écrit :
>
> > The anti-Alias noise ranges between -0.35 and 0.35 but as you increase
> the
> > Roughness it tends to go beyond those values.
> >
> > When I haven't played with a particular noise for a while, I like to use
> > it on a straight line in X for example and look at the values in an
> > orthogonal view with different roughness and frequencies. It helps so
> much
> > to understand what's in there.
> >
> > Francois
> >
> > On 08/29/2016 10:29 AM, Olivier Jeannel wrote:
> >
> >> Ah ! Thank you Christophe !
> >>
> >> On Mon, Aug 29, 2016 at 4:03 PM, Christopher Crouzet <
> >> christopher.crouzet at gmail.com> wrote:
> >>
> >> Approximate ranges are given in the Turbulent Noise VOP node page:
> >>> http://www.sidefx.com/docs/houdini15.0/nodes/vop/turbnoise
> >>>
> >>> That's not the easiest page to remember IMO—most of the time when
> looking
> >>> for these values, I first stumble upon the Noise and Randomness
> >>> <http://www.sidefx.com/docs/houdini15.0/vex/random> page then wonder
> why
> >>> it's not listed in there.
> >>>
> >>>
> >>> On 29 August 2016 at 20:41, Olivier Jeannel <facialdeluxe at gmail.com>
> >>> wrote:
> >>>
> >>> Hello list,
> >>>>
> >>>> A manual question
> >>>>
> >>>> Each time I use a noise ( AA, Perlin, Sparse, ... ), I can't remember
> >>>>
> >>> what
> >>>
> >>>> values it is spitting. I know I can read them in  the Geometry
> >>>>
> >>> Spreadsheet,
> >>>
> >>>> but I'm just looking for a place (in the doc ? ) where they would be
> all
> >>>> listed and never ask that question again...
> >>>>
> >>>> Thank you :)
> >>>> _______________________________________________
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> >>>>
> >>>>
> >>>
> >>> --
> >>> Christopher Crouzet
> >>> *http://christophercrouzet.com* <http://christophercrouzet.com>
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> >
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