CPU and GPU Usage Modes in Modern Windows Port (.NET MAUI WinUI 3) - hyvanmielenpelit/GnollHack GitHub Wiki

There are 4 possible modes how to use CPU and GPU for rendering GnollHack on Windows (WinUI 3), when you have both an integrated GPU and a dedicated GPU in your system. The mode used depends on two settings:

1. In Windows 11, Settings → System → Display → Graphics
   • The Steam version of GnollHack needs to be added there as a desktop app, please see Troubleshooting Gameplay Problems of Modern Windows Port (.NET MAUI WinUI 3).
2. GPU Acceleration in GnollHack settings
   • This can't be turned on in the Steam version of GnollHack.

1. With Both CPU and Integrated GPU

• Graphics Setting in Windows: Let Windows decide or Power saving
• GPU Acceleration in GnollHack Settings: Off

2. Mainly on Integrated GPU

• Graphics Setting in Windows: Let Windows decide or Power saving
• GPU Acceleration in GnollHack Settings: On

3. With Both Integrated GPU and Dedicated GPU

• Graphics Setting in Windows: High performance
• GPU Acceleration in GnollHack Settings: Off

4. Mainly on Dedicated GPU

• Graphics Setting in Windows: High performance
• GPU Acceleration in GnollHack Settings: On

Remarks

GnollHack always renders graphics on an integrated or dedicated GPU, regardless of whether GPU Acceleration is enabled in the game settings. This is because both controls that are used to render graphics in the On and Off modes use GPU on Windows/WinUI 3.

Technical Details

If GPU Acceleration in GnollHack Settings is enabled, the game renders itself using SkiaSharp's SKGLView, which uses SwapChainPanel in WinUI 3.

If GPU Acceleration in GnollHack Settings is disabled, the game renders itself using SkiaSharp's SKCanvasView, which uses Canvas in WinUI 3.