TiltShiftFilter shows a strange behavior where the effect starts and ends

[Matt-Maerz]

Current Behavior

pixi.js version 8.1.0
pixi.js filters version 6.0.3
Browser Version 119.0.6045.200:
Windows Version 11 Home 23H2:

The TiltShiftFilter shows a strange behavior where the effect starts and ends.
(I have lowered the quality of the Blur for the performance)
Here are a few examples:

RESOLUTION: 1920x1080

new PIXI.filters.TiltShiftFilter({ blur: 4000 ,gradientBlur: 40, start:{x:0,y:1080/2}, end:{x:1920, y:1080/2} })

new PIXI.filters.TiltShiftFilter({ blur: 4000 ,gradientBlur: 40 })

RESOLUTION: 1280x800

new PIXI.filters.TiltShiftFilter({ blur: 4000 ,gradientBlur: 40, start:{x:0,y:800/2}, end:{x:1280, y:800/2} })

new PIXI.filters.TiltShiftFilter({ blur: 4000 ,gradientBlur: 40 })

Expected Behavior

With pixi.js v7.4.0 and pixi-filters v5.2.0 you got this:
new PIXI.filters.TiltShiftFilter({ blur: 4000 ,gradientBlur: 40 })

Steps to Reproduce

let tempContainer = new PIXI.Container();
tempContainer.filters = [new PIXI.filters.TiltShiftFilter({ blur: 4000 ,gradientBlur: 40, start:{x:0,y:1080/2}, end:{x:1920, y:1080/2} })]