Severe shadow acne after switching to WebGPURenderer

[trusktr]

Similar issues:

Shadow banding with WebGPURenderer VSMShadowMap

Ah! That banding was shadow acne. I didn’t realize enabling VSM shadows forced shadow receivers to also cast shadow even if castShadow is false, so I had assumed the wall was not casting shadows on itself, leading me to believe it was some other issue! To fix the banding, I had to adjust the light.shadow.camera.near/far values to tighten up the shadow camera frustum, then I could remove tiny amounts of acne with small shadow.bias values. The frustum near/far distance was previously way too larg…

Does tightening the shadow frustum help in the WebGPU case?