pkdawson
commented
1 year ago This is basically done, but Godot isn't quite ready yet - I have three open PRs which are absolutely necessary, and I'll eventually submit a fourth to add vertex offset support. We'll see if those get merged before beta 5.
I think a large performance improvement is possible by using RenderingDevice instead of canvas items, so the vertex buffer can be shared and a lot of allocations and copying can be avoided.
This is probably relatively straightforward if you're comfortable with Vulkan, but I'm definitely not.
https://docs.godotengine.org/en/latest/classes/class_renderingdevice.html
https://github.com/ocornut/imgui/wiki/Integrating-with-Vulkan