Which type of antialiasing is the internal d3d9 wrapper using?

[eddmanx]

In the guide it says "This will force the built-in Direct3D9 AntiAliasing to be enabled", but which type is it? Does it have multiple levels?

[elishacloud]

Direct3D9 uses MSAA. See here: https://learn.microsoft.com/en-us/windows/win32/direct3d9/full-scene-antialiasing

[eddmanx]

Shouldn't MSAA have levels though, 2x, 4x, etc? It seems the ini only accepts 1.

[elishacloud]

Yes. For the AntiAliasing setting in the dxwrapper.ini file you can use options 1, 2, 4, 8, and 16.

If you chose 1 then it will set it to the highest value supported by your video card. If you chose a number larger than your video card supports then it will also set this to the highest your video card supports. If you set this to 2 or 4 or some number smaller than your video card will support then it will set it to that value.

You can see this by the log file. I just tested setting this to 2 and it worked, see log entry:

8196 08:46:49.040 Setting MultiSample 2 Quality 0

[eddmanx]

Ah, I see, thanks. I got confused since the guide only mentions 0 and 1, and doesn't say 1 is auto.

[elishacloud]

I just updated the wiki with this information. I hope it helps.