If you really want to get a sense for how broad the APIs are today:
https://learn.microsoft.com/en-us/dotnet/api/system.numerics...
I've been working on a custom game engine in .NET for about a year now, and I still haven't had to pull down a 3rd party nuget.
It should provide up to 48x perf improvements as compared to .NET 7
I believe Vector4.Transform(Vector4, Matrix4x4) is my hottest path right now, but as I get into more complex scene graphs, Matrix4x4.Multiply(Matrix4x4, Matrix4x4) will likely pop into the profiler.
For `Matrix4x4.Multiply(Matrix4x4, Matrix4x4)` its a bit less at `10.04ns` to `8.38ns` (~17% faster)
The main improvements tracked by: * https://github.com/dotnet/perf-autofiling-issues/issues/1144... * https://github.com/dotnet/perf-autofiling-issues/issues/1148... * https://github.com/dotnet/perf-autofiling-issues/issues/1146...
There are some more cases to be improved. `Matrix4x4.Multiply` in particular I need to update to use a proper SIMD implementation rather than its current scalar implementation.
If you have any other core scenarios where it's important, let me know and I can try to focus on them sooner, rather than later ;)
I have no special requests at this time. I'll dig into the above issues and comment on GH as needed.