Composite video signal shader with color fragments and scaliness for LÖVE (https://love2d.or).
Based on NTSC Decoder by John Leffingwell (https://www.shadertoy.com/view/Mdffz7).
SMPTE color bars test image taken from https://en.wikipedia.org/wiki/SMPTE_color_bars.
Basic usage:
myShader = require("path.to.compositeScanlines")
myShader:send("screen", {
canvas:getWidth(),
canvas:getHeight()
})License CC BY-SA