How to make a techno black hole effect in Godot (Polar Coordinates Shader)

In this video I am going to show you how to build a shader that will create a sphere-like, black hole effect.

To do this I will remap the cartesian UV coordinates to polar coordinates and explain how this works. In the second half, we will build a visual effect using this shader.

Timestamps:
00:00 Intro
01:20 Creating a radial gradient
03:10 Creating an angle gradient using atan()
06:40 Combining the two to create polar coordinates
11:20 Adding more features to the shader
18:11 Building the effect.
21:00 Outro: Like, subscribe, share and all the shaenanigans!

A link to the shader:
https://gist.github.com/RPicster/f7da...

And a link to my game on Steam:
https://store.steampowered.com/app/18...

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