[Bf-cycles] ray depth

Brecht Van Lommel brechtvanlommel at pandora.be
Mon Oct 6 19:49:15 CEST 2014

Well yes, it would be nice if Cycles could automatically detect when it can
set global bounces to 0, but you're not gaining any new capabilities this
way. I imagine that if you want no light bounces at all, then you would
have probably just set global bounces to 0, rather than going through the
trouble of changing all lamps, emissive surfaces, volumes, ambient
occlusion, the world shader, and whatever else in the scene might be
emitting light.

There are various optimizations possible here, but this specific case
doesn't seem all that helpful for a production scene?

On Mon, Oct 6, 2014 at 1:52 PM, Greg Zaal <gregzzmail at gmail.com> wrote:
> Done some tests too and David is right.
> 128 bounces, 5:14 - http://i.imgur.com/XFdhp9l.png
> 128 bounces with Ray Depth trick, 5:11 - http://i.imgur.com/p8kL5ki.png
> 0 bounces, 4:10 - http://i.imgur.com/xQdrSQD.png
> Nodes used for one of the lamps: http://i.imgur.com/MBsi7hh.png (also
> http://i.imgur.com/htdCsxi.png - made no difference)
> Blend file: http://pasteall.org/blend/31928
> Cheers,
> Greg
> _______________________________________________
> Bf-cycles mailing list
> Bf-cycles at blender.org
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