use with picom

[basaran]

Hello,

Would it be possible to use these shaders with picom or compton?

picom --backend glx --force-win-blend --glx-fshader-win "$(cat crt-caligari.glsl)"

is returning an error:

[ 01/12/2022 00:15:52.693 gl_create_shader ERROR ] Failed to compile shader with type 35632: 0:1(1): error: syntax error, unexpected NEW_IDENTIFIER

[ 01/12/2022 00:15:52.693 glx_load_prog_main ERROR ] Failed to create GLSL program.
[ 01/12/2022 00:15:52.693 session_init FATAL ERROR ] Failed to initialize the backend

[hizzlekizzle]

Not directly. If picom/compton support user-loaded shaders, they could probably be modified to work with them fairly easily, as long as they expose the required functionality (texture coordinates, framebuffer size, etc.)

[basaran]

Thank you for the information. I found some shaders made for compton, I will check them.

If anybody else runs into the same need, this is the reference repo I found:

https://github.com/annoyatron255/compton-shaders

Closing.

[hizzlekizzle]

Oh, that's great. I hadn't seen these. It looks like it's quite easy to port them over (assuming single-pass, no LUTs, etc.), and they even support parameters. Very cool :)