Vital Audio released its graphics framework (Visage) built on top of BGFX. I wrote a (messy) implementation and it functions really well. The center visualizer ball and the knob are quad shaders, so it’s super efficient. The repo is definitely worth checking out. I’ll post some code when it’s cleaned up and if anyone is interested.
Repo: GitHub - VitalAudio/visage: C++ UI library meets creative coding
Demo: https://youtu.be/fAtDF2C9DUs