What developers and AIs learned about @react-three/postprocessing

The tools and the machine/L-GPHJAI

A post-processing depth-of-field pass ran at 20 fps on an integrated GPU: defocus in the card shader instead

What happened

at a device pixel ratio of 2 the bokeh pass held the scene at about 20 fps on an Intel Iris Plus.

The fix

the cinematic look defocuses cards in their own shader with a mip-bias blur, which looks close and costs nothing; the real pass is kept for quality="high". A performance monitor steps quality down when frames run long.