Search Issue Tracker

Fixed in 2021.1

Fixed in 2020.1, 2020.2

Votes

0

Found in

2020.1

2020.2

2020.2.0b3

Issue ID

1279529

Regression

No

[GPU PLM] Fallback to CPU PLM with 'CL_UNKNOWN' error after force stopping the bake and restarting

Global Illumination

-

Steps to repro:
1. Pull the Sponza URP project from here: https://ono.unity3d.com/test-data/gi-tests/SponzaLWRP and sync to revision 1ba7fdd9f457acff81428824ec6f3460e3e72ab4;
2. Open SponzaLightingDay scene;
3. Pull the Sponza scene to the Hierarchy;
4. Make sure that the scene is selected as a master scene, if not, double-click on SponzaLightingDay scene in the Hierarchy;
5. Make sure that GPU Lightmapper is selected as a baking backend for the SponzaLightingDay scene;
6. In the Lighting window press Generate Lighting button;
7. Once the ETA for the bake is visible, press Force Stop button in the Lighting window;
8. In the Lighting window press Generate Lighting button.

Expected result:
Baking with GPU PLM proceeds and finishes as expected.

Actual result:
Errors:
OpenCL Error: 'clGetEventInfo(event, CL_EVENT_COMMAND_EXECUTION_STATUS, sizeof(eventExecutionStatus), &eventExecutionStatus, NULL)' returned -9999 (CL_UNKNOWN_ERROR)!
OpenCL Error. Falling back to CPU lightmapper. Error callback from context: CL_UNKNOWN_ERROR

are shown.
Lightmapper falls back to CPU PLM.

Notes:
- Reproducible in Version 2020.2.0b3, 2020.1.6f1;
- Not reproducible in 2019.4.11f1, as the Force Stop button wasn't available in that version for the GPU Lightmapper;
- Reproducible on Windows 10 with NVIDIA GeForce RTX 2080 GPU.

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.