Eevee alot of black pixels NaN with SSR #62899

New Issue

Eric Klein · 2019-03-24T17:13:50+01:00

Eric Klein commented

2019-03-24 17:13:50 +01:00

System Information
Operating system: Windows-10-10.0.17134 64 Bits
Graphics card: GeForce RTX 2070/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 419.67

Blender Version
Broken: version: 2.80 (sub 51), branch: blender2.7, commit date: 2019-03-24 00:06, hash: 79f67acccb

Short description of error
Glossy black material generates a lot of black pixels NaN in final render. The more render samples the more NaN pixels. In the viewport is less noticeable because their are less render samples. Turn off SSR and NaN pixels are gone.

See attach image:

Exact steps for others to reproduce the error
Load attach blender file "Glossy SSR_NAN_Bug.blend". Glossy SSR_NAN_Bug.blend

Render F12 notice all the black NAN pixels. Turn off SSR and all the black NaN pixels are gone.

**System Information** Operating system: Windows-10-10.0.17134 64 Bits Graphics card: GeForce RTX 2070/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 419.67 **Blender Version** Broken: version: 2.80 (sub 51), branch: blender2.7, commit date: 2019-03-24 00:06, hash: `79f67acccb` **Short description of error** Glossy black material generates a lot of black pixels NaN in final render. The more render samples the more NaN pixels. In the viewport is less noticeable because their are less render samples. Turn off SSR and NaN pixels are gone. See attach image: ![Glossy SSR NaN Bug.png](https://archive.blender.org/developer/F6876647/Glossy_SSR_NaN_Bug.png) **Exact steps for others to reproduce the error** Load attach blender file "Glossy SSR_NAN_Bug.blend". [Glossy SSR_NAN_Bug.blend](https://archive.blender.org/developer/F6876664/Glossy_SSR_NAN_Bug.blend) Render F12 notice all the black NAN pixels. Turn off SSR and all the black NaN pixels are gone.

Eric Klein commented

2019-03-24 17:13:50 +01:00

Added subscriber: @eklein

Jacques Lucke commented

2019-03-25 13:37:53 +01:00

Added subscribers: @fclem, @JacquesLucke

Jacques Lucke commented

2019-03-25 13:37:53 +01:00

Where did you see that these pixels are NaN instead of just black?

I can reproduce what I can see in the screenshot. I don't know if this is a bug or a mistake on your side.
@fclem will know.

Where did you see that these pixels are NaN instead of just black? I can reproduce what I can see in the screenshot. I don't know if this is a bug or a mistake on your side. @fclem will know.

Clément Foucault was assigned by Jacques Lucke

2019-03-25 13:38:11 +01:00

Eric Klein commented

2019-03-25 15:42:08 +01:00

I don't know for sure if it is a NaN, but when I change the black color of all zeros to a red color the problem is fixed. I am using standard nodes that I are supported in Eevee and it works fine in Cycles.