Shader resolution does not change with video-zoom

[octopushugger]

I want to scale with shaders when zooming but mpv only uses internal algorithms for it.

• mpv version: 0.35.0-37-gf9d0b0c08a
• Platform and Version: Win11
• Source of the mpv binary: Scoop

Reproduction steps

Change video-zoom while using any shader that uses output resolution in its processing.

Expected behavior

Shader re-render at new resolution when video-zoom is changed.

[hooke007]

Could you show the shader that "uses output resolution in its processing"? I've never saw this kind of scaling shaders.

[octopushugger]

Ravu-zoom doesn't trigger for video-zoom or if upscaling was already required then ravu-zoom will upscale before video-zoom's crop(at least I assume it works by cropping) and then mpv will upscale with whatever "scale" is set to. Ideally this would be one smooth process with just ravu-zoom.

I think the issue might be that video-zoom does not affect HOOKED or is not loaded until after user shaders are run?