#wine-staging

Hi, I have d3d11 game where some geometry is missing/invisible. I'm assuming it's SM4 shader conversion issue but not really sure. What would be the best way to start debugging rendering issues like this?

Offloudef, https://wiki.winehq.org/Wine_Developer%27s_Guid... https://wiki.winehq.org/Debug_Channels https://wiki.winehq.org/Wine_Developer%27s_Guide

I cannot help more than that.

I hope it helps, though.

Bradan: sadly those aren't really helpful with the rendering :(

I've tried hooking with various opengl debuggers but all of them seems to not work very well, and apitrace is too slow. I'm wondering if there is some mechanism in wine to dump glsl of the converted shaders

also the d3d9/d3d10/d3d11/... stuff?

you could intervene into the process manually, printing stuff out or writing it to some temporary file

Yeah I could

That was something I was planning to do with LD_PRELOAD, if no d3d11 wizard shows up

Offloudef: you should start by looking at FIXME() messages and terminal if there isn't anything obvious

in the next turn you probably want to use apitrace to narrow down the issue to a specific draw call

jkucia: yeah that's the first thing I do, the only fixme's that could affect were some unimplemented SM4 instruction modifiers

apitrace sadly isn't helpful as it will slow down the whole thing to crawl and it can't be used to start tracing at certain point

unimplemented SM4 instruction modifiers are not an issue, generally

Offloudef: if apitrace is too slow for you, you might want to fix renderdoc to work in wine, or fix wine to run renderdoc :D

jkucia: Oh I did not know about renderdoc

I may give it a spin

jkucia, Bradan: wrote a quick shader dumper and found the problem, wine is generating conditional that uses discard, and that is always hit

ran sed -i 's/^\(if.*discard;\)/\/\/\1/' *.frag on the dumped shaders

https://my.mixtape.moe/fqffup.png and this is the result

ground and characters are invisible otherwise

I'm guessing the conditional is hit due to some unimplemented SM4 modifiers though

I doubt that unimplemented SM4 modifiers are involved

Offloudef: please provide a +d3d_shader log