Realtime GI Light Occlusion Issue

Hi,

I have a simple scene in which the shadow from a large cube completely covers a smaller cube with it's shadow. However, the smaller cube is emitting indirect light as if it weren't in shadow. It's a puzzling issue, and I wanted to get your opinion in case I'm missing something obvious.

I've attached a screenshot of the issue and a minimal test scene to reproduce it.

I'm using the latest Unity version 5.4.1f1, running on Windows 10 64-bit.

Thank you.

 

I can confirm. I downloaded the project and I can't find anything wrong with the set up. Indirect shadowing with Directional Lights should work properly, maybe it's a recent regression?

I suggest doing a bug report, also send them the project you attached here. (and once you get a case number, post it here as well)

 

Thanks AcidArrow. I submitted a bug report, case ticket 846861_kspkkof31m808avm.

 

Unity QA suggested setting the directional light baking mode to Mixed. This fixes the issue, but the lighting can no longer be adjusted in realtime, which is not appropriate for me as my project uses time-of-day. The other suggestion they had was to turn down Indirect Lighting and compensate for the lack of it with ambient lighting. Losing GI is not a good solution to the problem however. I've replied to them asking to revise the issue. Enlighten should be able to support correct real-time indirect shadowing.

Additionally, another user is possibly experiencing this issue as well https://forum.unity3d.com/threads/indirect-light-leaking-through-walls.439169/.

 

Indirect light shadowing only works properly for Directional Lights. It doesn't work for anything else (which means, what you're seeing would be normal for spots and points).

But you are using a directional light, which makes me think this is a bug.

Does QA not consider it a bug?