Unlocking the Power of DLSS in Unreal Engine 4.27.2: A Step-by-Step Guide

Are you tired of sacrificing visual fidelity for performance in your Unreal Engine projects? Look no further! NVIDIA’s Deep Learning Super Sampling (DLSS) technology is here to revolutionize the way you approach graphics rendering. In this comprehensive guide, we’ll walk you through the process of enabling DLSS for UE 4.27.2, ensuring you get the most out of this cutting-edge feature.

What is DLSS?

Before we dive into the nitty-gritty, let’s take a brief look at what DLSS is and how it works. DLSS is a revolutionary technology that uses deep learning to improve image quality while reducing the performance cost of rendering. By leveraging the power of AI, DLSS can intelligently upscale low-resolution images to high-quality, high-resolution images in real-time.

How does DLSS work?

In simple terms, DLSS works by:

• Rendering the scene at a lower resolution
• Using a deep neural network to intelligently upscale the image
• Outputting a high-quality, high-resolution image

This process eliminates the need for traditional super sampling methods, resulting in significant performance gains and reduced computational overhead.

Prerequisites for Enabling DLSS in UE 4.27.2

Before we start, make sure you have the following:

• Unreal Engine 4.27.2 installed on your system
• NVIDIA Graphics Card (RTX 20 series or later)
• DLSS plugin installed and enabled in the Epic Games Launcher
• A project set up in Unreal Engine with a compatible render pipeline

Step 1: Enable DLSS in the Project Settings

Let’s get started!

Open your Unreal Engine project and navigate to the Project Settings by clicking on Edit > Project Settings in the top menu bar.

In the Project Settings window, scroll down to the Rendering section and click on the “DLSS” option.

[ Rendering ]
  |
  |---> DLSS
      |
      |---> Enabled (checked)
      |---> Quality (set to your desired level: Low, Medium, High, or Ultra)

Make sure to check the “Enabled” box and set the quality to your desired level. For this example, we’ll set it to “High”. Click “Apply” and then “Save” to confirm the changes.

Step 2: Configure the Render Pipeline

Next, we need to configure the render pipeline to use DLSS.

In the Content Browser, navigate to the “Materials” folder and create a new material by right-clicking and selecting “Material”. Name it “DLSS_Material”.

Double-click the “DLSS_Material” to open it in the Material Editor.

[ Material Editor ]
  |
  |---> Material (DLSS_Material)
      |
      |---> Details
          |
          |---> Material Domain (set to "Post Process")
          |
          |---> Blend Mode (set to "Opaque")

In the Material Editor, set the Material Domain to “Post Process” and the Blend Mode to “Opaque”. This will ensure that the material is applied correctly in the render pipeline.

Step 3: Create a Post-Process Volume

In the Content Browser, navigate to the “Volumes” folder and create a new post-process volume by right-clicking and selecting “Post-Process Volume”. Name it “DLSS_Volume”.

Double-click the “DLSS_Volume” to open it in the Details panel.

[ Details Panel ]
  |
  |---> Post-Process Volume (DLSS_Volume)
      |
      |---> Settings
          |
          |---> Post-Process Materials (add the DLSS_Material)

In the Details panel, add the “DLSS_Material” to the Post-Process Materials section. This will apply the DLSS material to the post-process volume.

Step 4: Apply the Post-Process Volume to the Level

In the World Outliner, select the “DLSS_Volume” and drag it into the Level viewport.

Resize the volume to cover the entire level by clicking and dragging the corners of the bounding box.

Step 5: Verify DLSS is Enabled

Finally, let’s verify that DLSS is enabled and working as expected.

In the Level viewport, click on the “Stats” button in the top-right corner and select “Rendering Debugging” from the dropdown menu.

[ Rendering Debugging ]
  |
  |---> DLSS
      |
      |---> Enabled (should be checked)
      |---> Quality (should match the quality level set in Step 1)

If everything is set up correctly, you should see the DLSS option enabled in the Rendering Debugging window, with the quality level matching what you set in Step 1.

Optimizing DLSS for Performance

To get the most out of DLSS, it’s essential to optimize your project for performance. Here are some tips to help you get started:

1. Use a compatible render pipeline: Make sure you’re using a render pipeline that supports DLSS, such as the Forward Renderer or the Deferred Renderer.
2. Optimize your scene: Reduce unnecessary geometry, use occlusion culling, and optimize your lighting to minimize performance overhead.
3. Use texture compression: Compress your textures to reduce memory usage and improve rendering performance.
4. Profile and optimize: Use the Unreal Engine profiler to identify performance bottlenecks and optimize accordingly.

Tips and Tricks	Description
Use DLSS with other NVIDIA technologies	Combine DLSS with other NVIDIA technologies like Variable Rate Shading (VRS) and Multi-Frame Sampled Anti-Aliasing (MFSAA) for even better performance and visual quality.
Experiment with different quality levels	Try out different DLSS quality levels to find the optimal balance between performance and visual quality for your project.
Keep your project up-to-date	Regularly update your Unreal Engine project to ensure you have the latest DLSS features and optimizations.

Conclusion

Enabling DLSS in Unreal Engine 4.27.2 is a straightforward process that can significantly improve the performance and visual quality of your projects. By following this guide, you should now have a solid understanding of how to set up and optimize DLSS for your projects.

Remember to keep your project optimized, experiment with different quality levels, and stay up-to-date with the latest Unreal Engine releases to get the most out of DLSS.

Get Ready to Unlock the Power of DLSS!

With DLSS enabled, you’re now ready to take your Unreal Engine projects to the next level. Experiment with different scenarios, optimize your projects for performance, and get ready to amaze your audience with breathtaking visuals.

Frequently Asked Question

Get ready to unlock the full potential of your Unreal Engine 4.27.2 with DLSS! Below are some frequently asked questions to help you get started.