60 FPS lock in Max Payne

[deton24]

I use Widescreen by 13AG as dinput.dll and only d3d8.dll without even d3d9.dll from reshade. I get 60 FPS lock. When I delete d3d8.dll (d3d8to9) it unlocks FPS.

AMD card.

[Sethy1124]

If your monitor is only 60 Hz then it really doesn't matter as the game will only be 60fps even if an fps counter shows higher

[HerMajestyDrMona]

I think adding: Output.PresentationInterval = D3DPRESENT_INTERVAL_IMMEDIATE;

At the end of function ConvertPresentParameters() in d3d8types.cpp removes the 60FPS limit.

[elishacloud]

I checked the game. Both Max Payne and Max Payne 2 send the following parameters:

• Windowed = false
• SwapEffect = D3DSWAPEFFECT_DISCARD
• FullScreen_RefreshRateInHz = D3DPRESENT_RATE_DEFAULT
• FullScreen_PresentationInterval = D3DPRESENT_INTERVAL_ONE

From everything I have read and looking at the Microsoft documentation here and here these settings should enable vsync, as d3d8to9 does.

Here are two quotes from Microsoft's documentation:

D3DSWAPEFFECT_DISCARD For a full-screen swap chain, the presentation rate is determined by the value assigned to the FullScreen_PresentationInterval member of the D3DPRESENT_PARAMETERS structure when the device or swap chain is created. Unless this value is D3DPRESENT_INTERVAL_IMMEDIATE, the presentation will be synchronized with the vertical sync of the monitor.

Flag	Description
D3DPRESENT_INTERVAL_ONE	The driver will wait for the vertical retrace period. Present operations will not be affected more frequently than the screen refresh.

Either Microsoft's documentation is wrong, or there is a bug in the d3d8 implementation. I suspect the latter.

I don't believe there is any d3d8to9 bug here. I recommend either using your graphics card to disable vsync, using some third party tool that can do that or creating a custom build, as HerMajestyDrMona mentioned above.

[mirh]

https://github.com/crosire/d3d8to9/pull/143 TL;DR microsoft removed exclusive fullscreen from d3d8. And whether this had always been the case or yet another DWM quirk, thus you get windowed which means unlimited framerate.