What are the differences / advantages to D3DMetal?

[hackgrid]

Besides being opensource :-)

[K0bin]

D3DMetal shares a lot of code between their D3D12 and D3D11 implementation, including the synchronization. So DXMT could very well end up quite a bit faster because it relies on Metals built-in tracking to handle synchronization instead of grossly over-syncing like D3DMetal does (because the D3D12 barrier model can't really be implemented very well on top of Metal).

[billhollings]

On a related subtopic...

I'm really impressed with the airconv shader converter here. Quite a project!

I'm very curious about what defined the decision to roll your own shader converter, instead of leveraging Apple's Metal Shader Converter from their GPTK?

[3Shain]

For perfect integration. Metal already has a bunch of unpleasant limitations to work around so I have 0 interest to deal with another proprietary piece, and luckily I can afford the price: to create a FOSS alternative.