[WebGPU] GPU Picking failed on Windows with WebGPU mode on

[nancywan1004]

Hi there,

I encountered an issue with GPU picking failed (TDR -> Device Lost) on Windows machine only in webgpu mode (tested in a Chrome browser), which was fine on Mac. And it almost only happened in non-LOD sog unified scenes, and for LOD scenes with a splatBudget, I haven't seen issues thus far, even for Windows machines. Besides, it doesn't happen all the time, I suppose it has to do with the huge number of splats GPU has to handle in one frame.

I have attached the specific errors I encountered when I did a GPU picking to zoom to a target point. Would appreciate a look into this!

[mvaligursky]

Yep it seems the number is so large that the driver things the GPU hung.

How many splats in that scene and what GPU is it?
And which engine version?