`levels` effect not consistent between video & camera source

[nkleemann]

When processing frames from Graphic.playVideo with the levels effect, and setting the gamma uniform in the levels shader to values greater than 1, the image does not get inverted. But when you obtain frames from the camera, the image does get inverted.

This is just a small issue, but swapping between video/camera sources might be common during development to prototype effects. So it might be worth looking into parity between the two frame sources.

Example:

let processed = try await frame.levels(
            brightness: 2,
            darkness: 0.6,
            contrast: 0.2,
            gamma: 1.2 
        )

[heestand-xyz]

Interesting, I'll try to look into this, thanks!

[heestand-xyz]

I think it has to do with high bit graphics, you can force it to 8bit here: https://heestand-xyz.github.io/AsyncGraphics-Docs/documentation/asyncgraphics/graphic/bits(_:)

[nkleemann]

Will try it out, thanks!