This plugin's a bit more powerful, w/ changes I've added into OBS which got released as part of v23 the plugin can create contextual gui controls for what you want. If you need an image vs a source vs an audio texture etc. Also, it contains code for shaders to be used as an independant source, filters and transitions.
The full feature set is listed in the readme of the plugin on the github, there's a lot.
Looks like there are some problems loading the plug-in in OBS for Windows x64 while OBS startup log record looks quite strange:
11:54:08.973: LoadLibrary failed for '../../obs-plugins/64bit/obs-shader-filter.dll': The network path was not found.
11:54:08.973: Module '../../obs-plugins/64bit/obs-shader-filter.dll' not loaded
What extra logs may be helpful to resolve the issue?