I'm terrible at writing shaders, and I need help converting a CG Shader to an HLSL Shader.

Unity Engine
1

Hey y’all! I’m not usually one to ask for help, but I really don’t know where to even start on this. I recently recreated a shader from this video:

The only problem is that since I’m using LWRP, I can’t use OnRenderImage() so that the shader effects the camera view. My solution was to simply use the shader as a post processing effect, but I was not aware that you’re supposed to use HLSL. I’ve been trying for about 2 hours to rewrite this shader as an HLSL one, but since I don’t have a great understanding of shaders I’ve gotten nowhere.

I hate to be that guy that asks people to write code for him, but I’m having a lot of trouble. If someone could help me out a bit here, I’d much appreciate it.
Thanks in advance.

2

It would help if you posted what you currently have so we can explain where you might have gone wrong and give you tips.