urho3d VS Veldrid

Urho3D, an open source C++ game engine.

I believe Urho3d supports MacOS (see 'about' page on the legacy website).

Urho3D

If you're literally clueless your best bet is to first start learning with an existing clean-ish engine like Urho3D implementing whatever feature/screwing-around or start with a framework like nVidia's Donut that gets you your window and basic rendering in place.

I would recommend tracking through the gist of Urho3D's batch/batchqueue stuff as it's a reasonable setup that is very intelligible (if you speak C++), it's not the greatest thing on the planet but you should be able to roughly grok it in an afternoon. Doing draw batch-pumps greatly streamlines the final drawing code.

You could try Urho3D or its newer fork rbfx.

I use an engine called rbfx which is a fork of the Urho3D engine. A lot of it is just the fact that I've been using it for over a decade, so I am comfortable with it. I'm a programmer, not really comfortable with integrated editor engines such as Unity or Godot, and the easy C++ extensibility of the engine appeals to me. Plus it's decently powerful, and well supported on a lot of platforms (I build for Windows, WebGL, and very occasionally RPi for the most part) and is open source to satisfy that stubbornly libertarian side of my character.

You might be interested in Urho3D.

If you don't mind something experimental, there is a C# version of Urho3D that is in fairly active development. There is also a C#-scriptable branch of the Urho3D fork, rbfx, located here. Both of these projects are still pretty in-the-works, but are still pretty usable.

I'd recommend Veldrid

So, for example, Veldrid, a low cross-platform graphics API-agnostic rendering and compute library for .NET, has its own bindings to provide different graphics backends. How were those created? Is it a completely manual process? are tools available? How are those maintained?

https://github.com/mellinoe/veldrid and https://github.com/dotnet/Silk.NET are nice wrappers around several graphic apis

Check out Veldrid.

Veldrid is a lower level engine that abstracts away a bunch of backends for you. Youll have to build your own pieces on top.

Also noteworthy: Veldrid

in addition to what everyone has said already, take a look at https://github.com/mellinoe/veldrid

Veldrid for graphics although I think SILK.net would also work well.

If you’re interested in C#, You could look into Veldrid. It is 3D however, so im not sure how easy it is to do 2D with it. ImGui.NET is a set of .NET bindings for Dear ImGui, which is one of the best immediate mode gui librarys out there imo. It has a canvas feature which allows you to draw 2D shapes via the gui renderer. Also, the creator of Veldrid and ImGui.NET has an example project for ImGui.NET using veldrid..

Veldrid attempts to wrap several graphics api, directx11, metal, opengl, and vulkan. You would have to write most things from scratch but this lib will work cross platform. Probably not consoles though.