[Bf-cycles] Why is the shadow pass ignoring mesh and background MIS?

[Brecht Van Lommel]

The reasons are pretty technical. It's certainly possible, just a
bunch of work to make it work well, see here:
https://developer.blender.org/D524

On Sat, Aug 22, 2015 at 4:32 PM, Gottfried Hofmann
<gottfried at blenderdiplom.com> wrote:
> Hello Cycles Developers,
>
> while many VFX artists find the Cycles shadow pass limited, I wonder
> wether it could be improved by also taking mesh lights with MIS and the
> world background with MIS (basically all shadow rays) into account?
>
> Is there a specific reason why it only recognizes lamps? Most VFX work
> is done with an HDRI background of the set, so the change mentioned
> above would be real improvement.
>
> Cheers,
> Gottfried
>
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