Custom filter not working (copied from example)

[weepy]

Current Behavior

The custom filter example works on the PIXI examples website. However if I copy and paste it - it no longer works.

Expected Behavior

Should see the glsl filter working ok.

Steps to Reproduce

Here is a stackblitz

https://stackblitz.com/edit/stackblitz-starters-ef4zpt?file=index.html

Environment

Chrome , Macos, latest pixijs

Possible Solution

No response

Additional Information

No response

[GoodBoyDigital]

looks like a sneaky fg.r= 0.0; line got added! removing it will make the demo work as intended 👍