System-level optimization can be applied through the NVIDIA Control Panel. Set Power Management Mode to Prefer Maximum Performance in NVIDIA Control Panel → Manage 3D settings → Program Settings.
For better efficiency, consider using the new Performance preferred render mode in the Volinga plugin. Please note that this setting compromises visual quality.
By default, Unreal Engine runs with resource-demanding features enabled to ensure proper visual display.
The overall performance of the scene can also be affected by features such as Lumen or the chosen Anti-Aliasing method.
Follow these steps to optimize performance in the Volinga Unreal Engine plugin:
Select Fast Approximate Anti-Aliasing (FXAA) in Edit → Project Settings → Engine Rendering → Default Settings → Anti-Aliasing Method.
If your scene consists of only Gaussian Splat models, deactivate Lumen by selecting None in Edit → Project Settings → Engine Rendering → Global Illumination → Dynamic Global Illumination Method.
After deactivating Lumen, to display the Gaussian scene correctly, check if Allow Static Lighting is set to TRUE in Edit → Project Settings → Engine Rendering → Misc Lighting.
Also, Min Screen Area Threshold can be adjusted in the Volinga plugin. By default, it is set to 1 providing a balance between visual quality and performance, but it can be tweaked if necessary. Setting the value above 1 reduces Gaussian rendering quality for better performance. Setting it below 1 will recover finer details, but at the cost of performance and, in some cases, minor Gaussian visual glitches.