rbfx VS DiligentEngine

good engines for C++ that meet your requirements https://github.com/u3d-community/U3D https://github.com/rbfx/rbfx i highly recommend taking a look at rbfx, U3D doesn't have all the fancy features that rbfx has but deep down they are the same engine almost. They are forks of Urho3D, a mature engine that has existed from the year of 2011/2010.

Urho3D is dead. There is the U3D project which is essentially a maintenance fork made after the original project was taken over by a crazy Russian nationalist. There is also rbfx which is a progression fork that is working to make improvements such as to the PBR rendering pipeline, making it work with C# if desired, as well as rebuilding and improving the editor. The original Urho3D is soon to be even more dead than currently, since the discourse forum is set for archival and deactivation at 4:00 AM tomorrow morning.

Go to: https://github.com/rbfx/rbfx, they have a discord but IIRC it's basically just a CMake build so you flip the flags to say "WebGL" or "Emscripten" or w/e and CMake will basically tell you everything that's wrong.

If anyone is looking for a Unity alternative, the guys at rbfx are doing a great job revamping the old Urho3D codebase: https://github.com/rbfx/rbfx

It has good C# scripting support, a nice editor and modern rendering pipeline.

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.

Neither Apple nor Microsoft want any usable multiplatform graphics API. For this reason, none of them delivers such a thing.

If you want a multiplatform graphics API, you should use a library which implements such API on top of these native OS-specific APIs.

I have good experience with that one: http://diligentgraphics.com/diligent-engine/ I’ve used it couple times on Windows with D3D12 backend, and on Linux with GLES 3.1 backend.

Diligent Engine: They say their engine is the successor of bgfx, but I'm not rly into that topic.

Diligent Engine. A Modern Cross-Platform Low-Level 3D Graphics Library and Rendering Framework Tweet.

Read other people's code (I recommend modern small to medium sized github projects, because large ones can be overwhelming) or else you will forever stay in your bubble of how things are done. For example, I had learned a thing or two by using (and code browsing) diligent engine's source.

Diligent Engine

I'm not speaking out of my ass, either, I have very actively followed low-level development being done towards open-source engines such as Diligent and Wicked. I personally am a contributor to the latter engine, as well. It is baffling to me that independent developers don't support this platform.