Search Issue Tracker

Fixed in 2022.1.X

Planned for 2020.3.X, 2021.2.X

Votes

0

Found in

2020.1

2020.1.9f1

2020.2

2020.3

2021.1

2021.2

Issue ID

1337396

Regression

Yes

[GPU PLM][Denoising] Artifacts after baking GI with certain lighting settings and denoising enabled

Progressive Lightmapper

-

Steps to repro:
1. Download the ArchViz Pro vol.6 project (link attached in the comments) and sync to revision `8546d9d7f07d` of the 'DenoisingBug' branch;
2. Open 'AVP6_Desktop' scene;
3. In the Preferences window (Edit>Preferences>GICache tab) click "Clean Cache" button;
4. In the Lighting window (Window>Rendering>Lighting) press the arrow button near the Generate Lighting button and select "Clear Baked Data";
5. In the Lighting window press Generate Lighting button;
6. Observe the Game View window after the baking is completed.

Expected result:
The scene with baked lighting is rendered smoothly without artifacts.

Actual result:
There are artifacts on the baked geometry's surface. See attached .gif video.
Regression introduced in Version 2020.1.

Notes:
- Reproducible in Version 2021.2.0a17, 2021.1.8f1, 2020.3.9f1, 2020.2.7f1-dots, 2020.1.9f1;
- Reproduces unstably (sometimes) in Version 2020.1.8f1;
- Not reproducible in 2020.1.7f1, 2019.4.27f1;
- Reproducible on Windows (NVIDIA GeForce RTX 2080Ti GPU);
- Reproducible only when baking with GPU Lightmapper; not reproducible when baking with CPU Lightmapper;
- Reproducible when baking GI with Optix or OpenImage denoiser enabled; not reproducible when baking GI with RadeonPro denoiser enabled;
- Not reproducible when denoising is disabled;
- Increasing direct samples to 512 and rebaking GI fixes the issue;
- Artifacts are visible in both Shaded and Baked Lightmap debug Editor visualization modes.

Add comment

Log in to post comment

All about bugs

View bugs we have successfully reproduced, and vote for the bugs you want to see fixed most urgently.