How to fix Ambient Occlusion results corrupted with Nvidia drivers 572.16

Hi,

[EDIT] This issue has now been resolved. Update to drivers version 572.60 or newer to get the fix.

---

The latest drivers released by Nvidia (version 572.16 to version 572.47) can lead to corruptions and glitches in the result of the Ambient Occlusion when baking with GPU Raytracing enabled.

We have reached out to Nvidia to get this issue fixed.

Meanwhile you can try one of the following workarounds to avoid the issue:

- Downgrade you GPU drivers (if you can)

- Launch Painter with the command line argument --force-optix (this will use Optix instead of DXR)

- Disable the setting "GPU Raytracing" in the main preferences (this will use the CPU for baking, which is slower but stable)

In the meantime we recommend avoiding these drivers has they could create stability issues in addition to the artifacts.