mpv-prescalers VS gpu.js

I see you want to "cover [color, sharpness, and motion] in the best way possible", but you don't really explain how you're doing this. What quality is the source video? Are you re-encoding it, or are you applying different shaders to the playback? Many people use mpv for playback, and if you were using an available shader then maybe they could copy you to obtain a similar result if they liked it. You also don't include any other source information, but I'll get to that in a sec.

I don't know GLSL at all, but since I am a programmer, I am now trying to make LUMA version of Anime4K* shaders anyway. If you compare ravu-r2.hook and ravu-r2-rgb.hook at https://github.com/bjin/mpv-prescalers/tree/master/compute, the difference is small: it seems the -rgb file works like the LUMA version thanks to extraction of luminance from an RGB color https://stackoverflow.com/questions/596216/formula-to-determine-perceived-brightness-of-rgb-color (kind of like an emulation)

You might already be familiar, but a GPU.js backend can provide some speedups via good old WebGL -- no need for WebGPU just yet!

[0]: https://github.com/gpujs/gpu.js/

Very cool project.

I learned WebGL three years ago but before I dove into the underlying concepts I used GPU.js [1] to quickly prototype my project. Eventually, the abstraction prevented necessary performance optimizations so I switched to vanilla GLSL and these vanilla GLSL "shaders" were initially ejected from GPU.js.

Writing JS code then looking at the generated WebGPU output is a great way to get familiar with WebGPU. Thanks for this.

[1] https://github.com/gpujs/gpu.js/

I used this library on my project but I think it's no longer maintained. I PRed a fix for buggy atan2 over a year ago and no movement [1]. I do highly recommend it if you're a web developer interested in harnessing parallel processing.

[1] https://github.com/gpujs/gpu.js/pull/683

Thanks for pointing this out. I've submitted a PR to resolve this: https://github.com/gpujs/gpu.js/issues/757

That being said, if you're not building from source (you're running an LTS version of node on a supported platform), you don't need to worry about python or many of the build deps.