Well, sometimes Windows games depend on propietary codecs, and until Valve can get the devs to make adjustments so the codecs aren't needed, the games aren't going to work properly in regular Proton.
If there is a free codec alternative I assume they can use that when the game calls for that codec? Perhaps I don't know enough that that's harder than replacing DirectX calls with Vulkan.
The issue is one of licensing, not technology. There's all kinds of patents in the space, and using free codecs could still infringe them. DirectX doesn't have the same patent protection. I believe in theory you could make a fully open source Linux native version of DirectX.
For more info from someone who knows more than me, see here.
Well, sometimes Windows games depend on propietary codecs, and until Valve can get the devs to make adjustments so the codecs aren't needed, the games aren't going to work properly in regular Proton.
If there is a free codec alternative I assume they can use that when the game calls for that codec? Perhaps I don't know enough that that's harder than replacing DirectX calls with Vulkan.
The issue is one of licensing, not technology. There's all kinds of patents in the space, and using free codecs could still infringe them. DirectX doesn't have the same patent protection. I believe in theory you could make a fully open source Linux native version of DirectX.
For more info from someone who knows more than me, see here.