Search Issue Tracker

Fixed in 2018.3.3f1

Fixed in 2018.3.X, 2019.1.X



Found in


Issue ID




[GPU PLM] [Crash] Baking stalls with CL_INVALID_PROGRAM when baking on GPU Lightmapper with the latest OpenCL drivers

Progressive Lightmapper


You'll need a machine with NVIDIA GPU having latest NVIDIA drivers (416.81). You can also reproduce the issue on AMD GPU having 18.10.2 or 18.11.1 drivers.

Steps to repro:
1. Open attached project and 'ProgressiveLightmappingExample' scene;
2. In the Lighting window select Progressive GPU (Preview) lightmapper;
3. In the Lighting window press 'Generate Lighting' button.

Actual result:

Baking stalls with the following error:

OpenCL Error: 'cl_int _err = kernelWrapper.CreateCLKernel(program, name, pvrJobType)' returned -44 (CL_INVALID_PROGRAM)!
[00:01:20] Enlighten: Finished 1 Create Input Lighting job (0.00s execute, 0.00s integrate, 0.85s wallclock)
LightmapEditorSettings: switching bake backend from 2 to 1.
gi::BakeBackendSwitch: Clear() active clients.
[EnlightenBakeManager] m_Clear = false;
OpenCL Error. Falling back to CPU lightmapper. Error callback from context: CL_INVALID_PROGRAM

without falling back to CPU Lightmapper

Expected result:
Editor doesn't crash and lightmapper falls back to CPU Lightmapper. Appropriate warning message is shown.

- Reproducible in 2019.1.0a9, 2018.3.0b10;
- Reproducible with both NVIDIA (416.81 driver) and AMD GPU (18.10.2 and 18.11.1 drivers);
- Reproducible on GeForce 640M GPU with NVIDIA driver ver. 350.12 WHQL (OpenCL version 1.2).

Fixed in 2019.2, 2019.1.0a14 and 2018.3.3f1

  1. Unity-Nikos

    Jan 21, 2019

    Fixed in 2019.2, 2019.1.0a14 and 2018.3.3f1

Comments (1)

  1. nilrem2

    Nov 19, 2018 07:03

    Have tried to reproduce on 2018.3.0b10 and Nvidia (416.94 driver) and reproduced the issue.

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.