[Bf-committers] Default for Raytracer Instancing

[Bassam Kurdali]

I have noticed this too, turning on instancing, in scenes with lots of
instances, sometime leads to longer render times. In the past it has
been faster, too, so I don't know what's going on, or why it should have
these results.

On Sun, 2011-01-30 at 10:00 -0800, Randall Rickert wrote:
> When I read the post about instancing being off by default, I was in the
> middle of a big project with raytracing and lots of instancing. I can
> turn on instancing to save some rendering time, right?
> 
> Wrong! Turning on instancing gave me longer render times, and it also
> made a small but visible difference in final gather. This is just the
> first file I tried rendering with instancing turned on, and I have not
> tried with other projects yet. Definitely not a large enough sampling to
> draw broad conclusions, but maybe turning it on by default is not such a
> simple answer after all.
> 
> -Randall
> 
> > On 21 January 2011 10:39, Daniel Salazar - 3Developer.com
> > <zanqdo at gmail.com>wrote:
> > 
> > > There's an option in the Performance panel in Render Properties called
> > > Instances, it allows the raytracer to memory instance all duplis, IMO
> > > this option should be on by default (if optional at all) since, from
> > > talking to Jaguarandy some time ago, it should not bring any problems
> > > or speed increase in any case, to the contrary, the speed and memory
> > > usage when using duplis gets much better. Also sadly many people
> > > ignore this setting so they don't benefit from it.
> > >
> > > cheers
> > >
> > > Daniel Salazar
> > > _______________________________________________
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> > > Bf-committers at blender.org
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> > >
> 
> 
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