[Bf-cycles] Shadow Pass including IBL + mesh Lights (VFX)

[Brecht Van Lommel]

I attempted to improve the shadow pass now to take the light shaders
into account, which should make background lights actually useful in
the shadow pass. There's a patch here that you can test:
https://developer.blender.org/D524

There's a number of tricky issues to solve there though. I'll see how
far I get with those, not sure if I will have time to solve them.

On Sun, May 11, 2014 at 3:29 PM, Brecht Van Lommel
<brechtvanlommel at pandora.be> wrote:
> On Sun, May 11, 2014 at 11:51 AM, Thomas Beck
> <software at plasmasolutions.de> wrote:
>> As Thomas Dinges pointed out it's just a matter of deleting one check in
>> kernel_emission.h to support mesh lights in the shadow pass (or is there
>> more to do, Brecht?).
>
> It's actually more complicated than that, due to the way we reuse rays
> for BSDF sampling of lights. Removing the check will give results that
> will be slightly or very wrong depending on the scene setup.
>
> Brecht.