I wanted to make this for a while and when I stumbled upon a Barrel Distortion shader in shadertoy I got the nudge I needed to start this. After a bit of research on old CRT and their physics, plus having lived with them for a while I decided on the components of the shader.
I want:
- the picture to seem interlaced
- the interlacing to appear like its slightly moving, which is more pronounced through a good camera
- the signal to be noisy
- part of the noise to be like "strokes" simulating cosmic radiation charge particles hitting the phosporous
- the screen of the CRT to be distorted realistically
- all shader parameters to be controllable
Added some vignette to hide the edge of distortions to make a smoother result.
The video is linked below:
