Drag to orbit — path tracing and the denoiser kick in automatically once the camera comes to rest.
Drag to orbit — while the camera moves you see the plain raster render. Let go and the path tracer accumulates samples; when it finishes (or on every sample, with the checkbox) the denoised result fades in on top. The slider reveals raw vs denoised.
The view selector shows the denoiser's inputs exactly as the network sees them
(color and aux as-is, both top-down; normals mapped [-1,1] → display). Append
?inspector to the URL for the three.js Inspector (render targets, params, profiler).