EEVEE-Next: Weird denosier behavior [SSGI] #113036

New Issue

JohnDow · 2023-09-29T00:20:57+02:00

JohnDow commented

2023-09-29 00:20:57 +02:00

System Information
Operating system: Windows 10
Graphics card: GTX1660

Blender Version
Broken: Blender 4.1 Alpha (f03a015049)
Worked: -

Denoiser produces weird results. Here are some examples:

256 samples
No real lights, only a lamp with emissive material
Meshes have default material with roughness set to 1
Raytracing set to Split: 1 spp for Reflections and Diffuse, Screen tracing precision set to 1.

EEVEE-Next Noisy:

Spatial Reuse..................: OFF
Temporal Accumulation: OFF
Bilateral Filter..................: OFF

EEVEE-Next Denoised:

Spatial Reuse..................: ON
Temporal Accumulation: ON
Bilateral Filter..................: ON

EEVEE-Next Denoised:

Spatial Reuse..................: ON
Temporal Accumulation: OFF
Bilateral Filter..................: ON

Cycles (Ground Truth):

**System Information** Operating system: Windows 10 Graphics card: GTX1660 **Blender Version** Broken: Blender 4.1 Alpha (f03a01504939) Worked: - Denoiser produces weird results. Here are some examples: - 256 samples - No real lights, only a lamp with emissive material - Meshes have default material with roughness set to 1 - Raytracing set to Split: 1 spp for Reflections and Diffuse, Screen tracing precision set to 1. **EEVEE-Next Noisy:** - Spatial Reuse..................: OFF - Temporal Accumulation: OFF - Bilateral Filter..................: OFF ![0000004_EEVEE-Next_Noisy.jpg](/attachments/19910a59-2bc6-4501-baa7-c2a81ed5a713) **EEVEE-Next Denoised:** - Spatial Reuse..................: ON - Temporal Accumulation: ON - Bilateral Filter..................: ON ![0000004_EEVEE-Next_Denoised.jpg](/attachments/df32c7d0-9ba1-4a5d-963b-ad489df8bb91) **EEVEE-Next Denoised:** - Spatial Reuse..................: ON - Temporal Accumulation: **OFF** - Bilateral Filter..................: ON ![0000004_EEVEE-Next_Denoised_wo_Temporal_acc.jpg](/attachments/c94769c7-972c-405d-9ec5-9e81b30c65a1) **Cycles (Ground Truth):** ![0000004_Cycles.jpg](/attachments/40b1dd7b-c72a-4a4a-a7e9-6cb7ffe0f02a)

0000004_EEVEE-Next_Noisy.jpg

272 KiB

0000004_Cycles.jpg

312 KiB

0000004_EEVEE-Next_Denoised_wo_Temporal_acc.jpg

164 KiB

0000004_EEVEE-Next_Denoised.jpg

46 KiB

JohnDow added the

labels 2023-09-29 00:20:57 +02:00

Richard Antalik commented

2023-09-29 05:31:35 +02:00

Can you upload sample .blend file?

Richard Antalik added

Status

Needs Information from User

and removed

Status

Needs Triage

labels 2023-09-29 05:31:43 +02:00

JohnDow commented

2023-09-29 08:25:32 +02:00

Can you upload sample .blend file?

Yes, here it is.

> Can you upload sample .blend file? Yes, here it is.

SSGI_Test.blend

1.9 MiB

Richard Antalik commented

2023-09-30 05:15:20 +02:00

Renders look a bit off, I am not quite familiar with current progress and limitations though. @fclem can you check?

Richard Antalik added

Status

Needs Triage

and removed

Status

Needs Information from User

labels 2023-09-30 05:15:29 +02:00

Jacob Merrill commented

2023-09-30 05:53:31 +02:00

There are settings for number of samples,
As well as ssgi "scale" and there is some settings for ssr as well,

There are settings for number of samples, As well as ssgi "scale" and there is some settings for ssr as well,

Pratik Borhade added

Module

EEVEE & Viewport

Status

Needs Info from Developers

and removed

Status

Needs Triage

labels 2023-09-30 06:41:57 +02:00

Clément Foucault commented

2023-09-30 09:45:21 +02:00

The denoiser has some correlation artifact with the ray generation which creates noise that is not removed with more sampling. This should be addressed at some point.

As for the temporal denoiser, it is known to crush more subtle lighting which in scene like this removes most of the illumination. This is expected.

The color drift is caused by the storage using R11G11B10 format. This is something that needs to be addressed at some point. But I'm not sure if it is worth

So I will accept this report for now to keep track of these 2 issues.

The denoiser has some correlation artifact with the ray generation which creates noise that is not removed with more sampling. This should be addressed at some point. As for the temporal denoiser, it is known to crush more subtle lighting which in scene like this removes most of the illumination. This is expected. The color drift is caused by the storage using R11G11B10 format. This is something that needs to be addressed at some point. But I'm not sure if it is worth So I will accept this report for now to keep track of these 2 issues.

Clément Foucault added

Status

Confirmed

and removed

Status

Needs Info from Developers

labels 2023-09-30 09:45:59 +02:00

Miguel Pozo added the