[Bf-cycles] What are 'throughput' and 'weights'?

Tom M letterrip at gmail.com
Sat Mar 31 23:34:57 CEST 2012

See OSL for information about closures



On Sat, Mar 31, 2012 at 2:22 PM, Nikhilesh Sigatapu
<s.nikhilesh at gmail.com> wrote:
> I was studying the cycles source code, and I think I'm beginning to
> understand it better. I was looking at the integration algorithm and two
> terms keep showing up - 'throughput' and 'weight'. What exactly do these
> signify in this context? I have a feeling throughput is some measure of
> the modulation across bounces (red surface modulated by red float3 for
> example), eventually becoming low and making probability of termination
> high.
> I was also confused by closures for a bit, thinking it to be similar to
> the computer science term about functions, which seemed related to the
> execution context of shader functions. The way I see it now they are
> actually just shaders. Any clarification about this?
> Thank you for your help, and the great cycles code!
> --
> Nikhilesh S
> http://www.nikhilesh.info
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