Emulator

If I remember correctly, the SW renderer should only be missing graphics in debug mode for unknown reasons.

The D3D portion of this bug is a driver bug and invalid. It's not Dolphin's responsibility.

Debug mode and non-debug mode produced the same results. Just checking, if the 3D3 portion is a driver bug it should only effect DX11 and not DX12 right? DX12 does not have this problem.

It sounds like SW will need to be looked into further though.

D3D12 will hit the bug occasionally too.

SW needs to be looked into.

Alright. Also, how did you determine that the D3D issue was a known driver bug? This information could be helpful for avoiding duplicate reports from me in the future.

It only happens on nvidia, and not every time. Sometimes if you flush the GPU, it stops it from occurring (at a performance loss, of course), but even then occasionally it still does. Even reducing the test case to a single draw still caused the bug to happen. I wasn't interested enough in the D3D11 backend to bother spending any more time on it.

Sorry, but I haven't done FIFO analysis before. I'm assuming that a single draw refers to an object range of 0-1? The DX11 FIFO log showed "Stream size doesn't match actual data length" in a few places. Does that mean "Stream size doesn't match actual data length" is the known nvidia bug?

I was looking at the individual draw call level, not at the fifolog object level. Nothing I tried changing made any difference, so I'm not saying with 100% certainty that there isn't a bug on Dolphin's side, but it's not worth looking into considering it doesn't happen on any other vendor or backend (and D3D11 is the slowest backend).

OK I understand, thanks!

I can't reproduce the D3D issues in 5.0-1473 or 5.0-9618 anymore. Problem doesn't exist with:
Win 10 Pro x64
Intel Core i7-4702MQ CPU @2.20GHz
GeForce GT 750M
2x 8GB Hynix 1600MHz
GeForce Game Ready Driver 418.91

I still reproduced the software renderer issues though. Please update the title to "Software Renderer: Adventures of Lolo corrupted graphics"

Please update the title to "Software Renderer: Adventures of Lolo corrupted graphics"

This was fixed recently in Software Renderer, however the fifologs provided here seems to have the issues baked in. If I create a fifolog on the version that solved the issue and bring it back to a revision that should be broken you will find that it is not broken on playing back the fifolog file.

Fixed in 5.0-13717 -> https://dolphin-emu.org/download/dev/a0be1c93ea838461cd88049a9af86b5c81b5b435/