'negative' effect not working?

Phaser 3
1

On https://docs.phaser.io/phaser/concepts/fx, it says that I can ‘convert this ColorMatrix to have negative values’. However, using the exact same syntax that it describes, I cannot create the inversion effect I’m hoping to get.
This is the doc’s description.

effect.negative(multiply);
  • multiply : Multiply the resulting ColorMatrix (true), or set it (false) ?
    • true : Multiply the resulting.
    • false : Set the resulting. Default behavior.

my code:

let effect = this.cameras.main.postFX.addColorMatrix()

    effect.negative(false)

What am I doing incorrectly?

2

What do you see in your game?

It seems to work for me: Camera negative postFX Phaser Sandbox Entry (v3.87)

3

Figured out the problem, it just worked in a different way than I’d expected. Also, kind of a pebkac :sweat_smile: