[Bf-cycles] Camera Layers don't occlude light sources

[CG Cookie]

Ah that makes sense. I'll look forward to the light groups then :) 

Thanks Brecht 

-- 
Jonathan Williamson

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On Wednesday, April 4, 2012 at 5:35 AM, Brecht Van Lommel wrote:

> This is the intended behavior, Blender Internal also works the same
> way with lamps, or e.g. an emitting object in a raytraced reflection.
> A light source is no different than another object, it will not be
> directly visible but still indirectly affect other objects. The
> purpose of render layers is that if you composite them all together,
> they will still give the same results as if they were rendered in one
> layer.
> 
> Probably what you're missing most here is light groups support, that
> should be added at some point.
> 
> Brecht.
> 
> On Wed, Apr 4, 2012 at 4:19 AM, Jonathan Williamson
> <jonathan at cgcookie.com (mailto:jonathan at cgcookie.com)> wrote:
> > I've recently encountered something with Render Layers that is a bit
> > cumbersome, and potentially a bug but I wasn't sure. I wanted to check here
> > before reporting the bug. I talked with a few developers on #blendercoders
> > about it and they weren't sure.
> > 
> > I know that camera layers act like disabling Camera visibility for objects,
> > and that those objects are still indirectly visible; but is this also true
> > for light sources (including mesh lights)?
> > 
> > Currently it does not seem to be possible to restrict a mesh light source
> > from illuminating an object without disabling the scene layer. However, when
> > trying to setup multiple layers, with different lights, it's not currently
> > possible to render each of these individually without manually adjusting the
> > scene layers for each render or else by using scenes. Neither of these
> > methods are optimal though.
> > 
> > Is this a bug or merely a limitation of path tracing?
> > 
> > Thanks
> > 
> > --
> > Jonathan Williamson
> > Education Manager and Instructor
> > CG Cookie, Inc
> > http://cgcookie.com
> > 
> > 
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> > 
> 
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