Researching renderers

[PowerOfNames]

Hey, whats up!

Im currently looking for a rendering backend that supports the following features:

• SceneGraph
• Crude shading and lighting (pbr would be perfect though)
• Rendering multiple, independent scenes in multiple Windows (not views)
• a way to get the platform-window handle, so the renderer windows can be included in a third-party UI application (like WPF, Avalonia or Qt)
• ideally contains a model loader (.gltf !, .stl...)
• should be able to handle aup to a million triangles, ideally has "easy access" to instanced rendering (because many of our models share the same vertex data and only differ in position and coloration

The question to you:

• Which of these features are definitely provided/doable?
• How thin is the Vulkan abstraction layer of magnum. I'd prefer Vulkan over openGL, but unfortunatly, I dont have the time resources to implement a whole rendering pipeline from scratch (pipeline, renderpass, swapchain, descriptors, command buffers etc) AND needing to take care of memory syncing as well -> So, what does Magnum already tackle and what would I need to handle myself?

I hope you can anser me these quesitons.

Besides that: Your renderer is looking great, the website is awesome and I'm very interested to use it, if all the the requirements are solvable in a reasonable time frame :)