No GI from Directional light with IR+LC without 'Store Direct Light'

[RotemS]

While evaluating 3.40 for our pipeline, I'm having a lot of difficulties rendering existing 3.20 scenes to look the same.

One issue I've been able to isolate, is that standard directional lights do not generate GI when using IR + LC with 'Store Direct Light' unchecked in the LC.
Both IR and LC produce the correct result when used separately, regardless of whether 'Store Direct Light' is enabled in the LC.
The light is using a VrayShadow without areas shadows.

See the attached renders showing the same scene rendered with different GI methods.


Let me know if you need the scene file.

[Zdravko.Keremidchiev]

Can you attach the scene or send it to support@chaosgroup.com

[RotemS]

Please find the scene attached. I've deleted most objects to make it smaller.

vray34_reduced.zip

[Zdravko.Keremidchiev]

Thank you for attaching the scene. I reproduced the issue and forwarded to the developers for investigation.

[Zdravko.Keremidchiev]

The issue is fixed for the next SP.

[RotemS]

That's great, thank you. Do you know if it will be in the nightlies?

[Zdravko.Keremidchiev]

Yes, it should be fixed in the today nightly as well.