How to get debug information / missing dx features

[GenuineJakob]

Hi, I am having trouble getting a game to run with MoltenVK in Crossover/Wine. The developers updated their DirectX requirements and since then the launcher doesn't launch the game anymore and it tells me I have an unsupported DirectX version.
How can I find out which DirectX extensions a game requires?
Is there a log that lists missing extensions in MoltenVK for a running application?

[cdavis5e]

By default, MoltenVK dumps the lists of supported features and extensions to stderr. If you capture a log from CrossOver ("Run with options..." menu item), you should see lines beginning with [mvk-info] in the log file.

I presume that one of the following is what's happening. Either:

• The game now wants D3D12, but we don't support that yet on Mac; or
• The game wants one of the vendor DLLs that extend D3D11/12, but we don't yet support those on Mac, either.

We'll probably confirm that after you provide logs to CW support. (You did open a ticket or a bug, right?)

[cdavis5e]

Funny how this came up--as a matter of fact, I was just working on this very thing.

[GenuineJakob]

Oh, I see; the launcher is 32bit. The DirectX check is Part of the launcher; MoltenVK is therefore not running during this check. If the check were somehow disabled or bypassed, the game would either start/run fine or crash and give us more information about missing extensions.

Did I understand this correctly?
The game launches fine within Linux, so the 32bit Dx to Vk translation works.

[cdavis5e]

If the check were somehow disabled or bypassed, the game would either start/run fine or crash and give us more information about missing extensions.

Right.

[GenuineJakob]

Thank you both for your help. I made a ticket on the developer's forum, asking if we can get a parameter for the launcher to skip the Dx check. How far away are we from 32-bit application support? Are we talking about months or years?

[cdavis5e]

Months.