First post, by Dege
I stumbled upon my old AMD HD7850 video card and managed to install it in my machine alongside the existing one (now I can test on all the 3 vendors).
I installed the latest driver available (2021-05) for Win10 x64 and tested it with dgVoodoo.
Considering that this card is how old, it's interesting its driver provides D3D12 support. And that works fine.
However I encountered the solid-colored polygons issue with D3D11. As it turned out, it's because a modification coming with dgv 2.74.
It seems that ClearRenderTargetView call does not work with AMD D3D11 drivers on integer format RTV's (I asked MS devs about if it's expected to work, before the effective implementation).
The point is, I made a fix for that, by forcing executing the old code path when AMD as a vendor is detected.
But, this is not the same "classic" problem that we have since dgv 2.55. I couldn't reproduce that one, no matter what I tried.
Maybe my card is too old, and the issue only comes with newer GPU's (as I mentioned in the readme's), but now AMD D3D11 is working fine for me with WIP 83.1 and the latest driver (aside from a known crash that I'll investigate later).
So, I'd like to ask
- If anyone can reproduce the solid-colored polygons problem with WIP83.1 then plz report it here, along with the driver version using, to see if I can do it too.
- I only fixed the D3D11 backend, so if somebody has issues with D3D12, plz report that and I'll modify that too.