What is the defferent between Poisson filter and PCF filter?

Questions
1

Just PCF use the poisson filter has the new hardware filtering functions available in Webgl2 and produce a smoother version of Poisson sampling?

2

Hello!

You can check the implementations of the shadows functions here, PCF: Babylon.js/shadowsFragmentFunctions.fx at 6847dcadd6fb325f8f8d780d06bc80316630b02c · BabylonJS/Babylon.js · GitHub, and Poisson: Babylon.js/shadowsFragmentFunctions.fx at 6847dcadd6fb325f8f8d780d06bc80316630b02c · BabylonJS/Babylon.js · GitHub

PCF doesn’t use poisson sampling, but PCSS does.