dalerank
Here it looks now 
@cesss you can try how it work here https://github.com/dalerank/nanogui
@cesss possible yes, but im not tested
@cesss it have some ideas which cant be ported :( forexample I avoid RTTI and used custom runtime info, because much projects disable it for speed, but mitsuba using it...
@wjakob I saw, thanks a lot for your work, it really great lib, but look around in really projects where it can be used, bgfx forexample, or UE4, rtti disabled,...
and exceptions it also very expensive in really projects, most of projects disabled exceptions by default
@cesss Yet once, my goals not a new widgets UI library, I want to create Figma open source alternative (www.figma.com) 
sdl2 port too slow, and not used gpu (because it not really on SDL2, it hides all gpu workaroud) @wjakob create amazing lib, but using all features from nanovg gpu...
@cesss look at early coomits, where im used sdl2+opengl, but later I add software render that avoid another depends only sdl2
hi, vulkan backed will be add here https://github.com/dalerank/nanogui some later