How to interact using scripts and shaders

[ahaoboy]

I'd like to try using shaders to draw a circle at the mouse position. This requires passing the mouse position to the shader. Are there any documents or examples I can refer to?

[verygoodlee]

Have you tried the --glsl-shader-opts option?

Here is a example, hdr-toys observe the container-fps change and pass it to shader via --glsl-shader-opts option.

https://github.com/natural-harmonia-gropius/hdr-toys/blob/5bce8a63c4df7fe8d147e9e356797518293821fb/scripts/hdr-toys.lua#L8-L13

https://github.com/natural-harmonia-gropius/hdr-toys/blob/5bce8a63c4df7fe8d147e9e356797518293821fb/shaders/hdr-toys/tone-mapping/astra.glsl#L121-L125

What you need to do is almost the same as it is.

[ahaoboy]

Thank you, this is very helpful.

[ahaoboy]

mpv is more powerful than I imagined!

Mandelbrot.mp4