A Kaleidoscope HLSL shader for Unity's custom post process with HDRP.
There's a demo-assets folder with an example scene. Don't forget to Edit>Project Settings>HDRP Settings>Add the effect in the After Post Process section. Also you need to add a Volume to your camera and a post-processing>custom>Kaleidoscope Override to that.
I've tested this with Unity 2019.2.0f3 and HDRP version 7.1.7.
If you want to include the Assets/_KaleidoscopeStuff/Kaleidoscope folder with the 2 files for the effect as a dependency, add this line to your Packages/manifest.json:
"ch.brogli.kaleidoscope" : "https://github.com/brogli/Kaleidoscope#upm"
Haven't tested it yet though.
Picture:
