DLSS is a revolutionary breakthrough in AI-powered graphics upscaling technology that massively boosts performance. This repository contains a plugin project for Flax Engine games with DLSS.

Minimum supported Flax version: 1.5.

0. Ensure to have proper system setup for C++ Scripting - see Flax Docs

1. Clone repo into <game-project>\Plugins\DLSS

2. Add reference to DLSS project in your game by modyfying your game <game-project>.flaxproj as follows:

...
"References": [
    {
        "Name": "$(EnginePath)/Flax.flaxproj"
    },
    {
        "Name": "$(ProjectPath)/Plugins/DLSS/DLSS.flaxproj"
    }
]

3. Setup plugin

Now, open Flax Editor and add new DLSS settings (via Content window New -> Settings, select Type to DLSSSettings). The you can provide AppId or ProjectId for NVIDIA DLSS. Also, you might want to get official DLSS SDK and update DLL files in this repo.

4. Test it out!

Finally you can use DLSS for image upscaling. DLSS extension will be visible in Plugins window (under Rendering category). It implements CustomUpscale postFx to increase visual quality when using low-res rendering. To test it simply start the game and adjust the Rendering Percentage property in Graphics Quality Window. Use plugin API to adjust DLSS quality and setup proper RenderingPercentage of the game rendering based on optimal settings from NVIDIA.

Platforms:

• Windows x64
• Linux x64 (untested)

Graphics APIs:

• DirectX 11
• DirectX 12
• Vulkan (untested)

In order to access DLSS API in C++/C# scripting import it in your code module (modify Game.Build.cs file):

public override void Setup(BuildOptions options)
{
    base.Setup(options);
    
    // Adds DLSS module to PrivateDependencies if supported on current platform (eg. Windows/Linux x64)
    DLSS.ConditionalImport(options, options.PrivateDependencies);
}

DLSS is implemented as a GamePlugin and can be accessed as follows to configure effect:

// Get DLSS plugin
var dlss = PluginManager.GetPlugin<DLSS>();

// Check if DLSS is not supported
if (dlss.Support != DLSSSupport.Supported)
    return;

// Adjust quality and sharpness
dlss.Quality = DLSSQuality.UltraQuality;
dlss.Sharpness = 0.1f;

// Use automatic settings based on output resolution and quality
// Sets main render task RenderingPercentage and DLSS Sharpness
dlss.ApplyRecommendedSettings(DLSSQuality.UltraPerformance);

// Enable/disable effect
dlss.PostFx.Enabled = true;

See official NVIDIA DLSS License.

NVIDIA and the NVIDIA logo are trademarks and/or registered trademarks of NVIDIA Corporation in the U.S. and other countries. Other company and product names may be trademarks of the respective companies with which they are associated.