How to do vignette effect using three js post-processing

I want to know how to do vignette effects in Canvas, It looks so good in Sketchfab. I don’t know how they achieve it. but it’s cool. so I am trying to do that.
anyone can help me? please.
which pass is helping with the vignette effect?

three js experts please consider this message.

enter image description here

I use this but it’s not working.