Crt
Makes the frame look like it is showing on a CRT.
The picture bows out on a curved tube with black past its edge, scanlines and a phosphor mask run over it, and the corners fall off. The scanlines and the mask are the average over each pixel, so a smaller preview draws the same picture at its own size. Nothing reads the clock, so a seek changes nothing.
The effect runs over the fill and under any overlay at the same scope, so a caption added next to it stays clean. A clip overlay under a composition Crt is part of the clip's frame by then, and takes the look with it.
An HDR source tone maps to SDR first. HdrMode.Auto reports that as a concession naming this effect, and HdrMode.KeepHdr is refused.
Register the renderer with filters() on the builder. Without it plan refuses the effect by name.
Throws
when intensity is outside 0f..1f.