[Sidefx-houdini-list] object ID passes

Olivier Jeannel facialdeluxe at gmail.com
Thu Nov 3 10:34:37 EDT 2016


I think Redshift handles this (include / exclude object  from light) ; and
this might worth checking but I think there is a control tab in the "object
redshift parameters" that gives some controls on the rays (shadow,
refractions, etc...).

On Thu, Nov 3, 2016 at 3:21 PM, Peter Bowmar <pbowmar at gmail.com> wrote:

> All shadow casting control is done on the Light's Shadow Mask.
>
> There is no way to set an object to cast shadows on others but not cast on
> itself.
>
> Likewise, all light controls are per-object, you can't tell a light to not
> illuminate an object.
>
> This used to be fixable (with a lot of work) using message passing between
> custom light and surface shaders, however with PBR I think this is much
> harder now :(
>
> Cheers,
>
> Peter B
>
> On 3 November 2016 at 07:14, Gary Jaeger <gary at corestudio.com> wrote:
>
> > And related (at least to this job) is there a way to set objects to not
> > cast shadows? I'm thinking here of the maya render settings where it's
> > possible to set things like "casts shadows" "receives shadows" "visible
> in
> > reflections" etc
> >
> > Thanks!
> >
> > On Thu, Nov 3, 2016 at 6:34 AM, Gary Jaeger <gary at corestudio.com> wrote:
> >
> > > Hi. I’m looking for a way to generate object IDs ala v-ray multi-mattes
> > or
> > > similar. So adding a channel to an exr where objectA matte is in the
> red,
> > > objectB is in the green, etc.
> > >
> > > *Gary Jaeger */ 650.728.7957 direct / 415.518.1419 mobile
> > > http://corestudio.com
> > >
> > >
> >
> >
> > --
> > Gary Jaeger // Core Studio
> > 249 Princeton Avenue
> > Half Moon Bay, CA 94019
> > 650.728.7957 (direct) • 650.728.7060 (main)
> > http://corestudio.com
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> >
>
>
>
> --
> Cheers,
>
> Peter B
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