Integrate DLSS through Streamline

Streamline is an open-sourced cross-IHV solution that simplifies integration of the latest NVIDIA and other independent hardware vendors’ super resolution technologies into applications and games. Frame generation coming soon - download today to get a head start once available.



Download Streamline

System Requirements


Streamline
Operating Systems
Win10 20H1 (version 2004 - 10.0.19041) or newer
Dependencies
Install the latest graphics driver. If using NVIDIA GPU, it MUST be 512.15 or newer.
Development Environment
VS Code or VS2017/VS2019 with SDK 10.0.19041+
Engine Requirements
DirectX11/DirectX12



Streamline SDK v.1.1.1


Latest enhancements include the below:


  • Performance reporting, when enabled, has been improved
  • Plugins are now sorted by priority before they are processed. This ensures that a higher-priority plugin is not unloaded by a conflict with a lower-priority plugin
  • Additional bug fixes and performance optimizations

I Agree To the Terms of the NVIDIA DLSS End User License Agreement


Download the NVIDIA DLSS SDK

System Requirements


DLSS SDK
Operating Systems
Windows 10 64-bit
DirectX End-User Runtimes (June 2010)
Linux kernel, 2.6.32 and newer
Dependencies
NVIDIA RTX GPU
NVIDIA DLSS SDK requires 471.11 driver or newer.
Development Environment
Visual Studio 2017 v15.6 or later
Linux SDK: glibc 2.11 or newer
Linux SDK Sample Code: gcc and g++ 8.4.0 or newer
Engine Requirements
  • DirectX11, DirectX 12, or Vulkan based
  • Additional note for Vulkan: The Vulkan path of DLSS expects the application to run on a Vulkan version 1.1 or later.

  • On each evaluate call (i.e. each frame), provide:
  • The raw color buffer for the frame (in HDR or LDR/SDR space).
  • Screen space motion vectors that are: accurate and calculated at 16 or 32 bits per-pixel; and updated each frame.
  • The depth buffer for the frame.
  • The exposure value (if processing in HDR space).




NVIDIA DLSS SDK 2.4.0


NVIDIA DLSS SDK 2.4.0 is now available for download. New features include:


  • Performance and Optimization Improvements
  • Bug Fixes & Stability Improvements

I Agree To the Terms of the NVIDIA DLSS End User License Agreement



Get Notified for DLSS 3


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FAQ

A: The DLSS SDK is meant for integrating directly into a proprietary / custom engine. The DLSS Unreal Engine plugin and DLSS Unity integration have verified integrations to ease DLSS development startup.


A: We have two DLSS DLL’s packaged in the SDK; a Development DLL and a Release DLL. The Development DLL will enable testing and debugging. Once development is complete, please use the Release DLL for shipping.





Download the Unreal Engine Plugin

System Requirements


Unreal Engine Plugin
Operating Systems
Windows 10 64-bit
DirectX End-User Runtimes (June 2010)
Dependencies
NVIDIA RTX GPU
NVIDIA DLSS SDK requires 471.11 driver or newer.
Development Environment
Visual Studio 2017 v15.6 or later
Engine Support
Unreal Engine 4.26
Unreal Engine 4.27
Unreal Engine 5.0



NVIDIA DLSS Unreal Engine Plugin


NVIDIA DLSS is now available through Unreal Engine 5.0, 4.27, 4.26.

New features include:

  • NVIDIA DLSS, DLAA and NVIDIA Image Scaling are now available as new key features in the plugin. You need a minimum of 4.27.1 engine version to utilize these features.

I Agree To the Terms of the NVIDIA DLSS End User License Agreement



FAQ

A: There are multiple items that can cause the DLSS dropdown menu tool to not be visible. To ensure your machine and project are both fully supported, please verify that the following guidelines are met.

  1. Minimum Driver version of 461.40 is installed on your machine. You can download and install the latest version either directly through GeForce Experience or simply download and install the driver from https://www.nvidia.com/drivers.
  2. Ensure you’re using the corresponding plugin version for the engine you’re running. (I.E. use the DLSS-Plugin-4.26.1 plugin if you’re using Unreal Engine 4.26.1). Please follow the DLSS_Plugin_Installation_Guide.pdf for further instructions on how to install.
  3. The `Enable DLSS to be turned on in Editor viewports` checkbox is marked in your project settings under `Plugins - NVIDIA DLSS`.
  4. Your editor viewport is set to Perspective and Lit modes. DLSS Plugin does not support the other viewport modes.
  5. The DLSS Plugin is not compatible with the RenderDoc Plugin. Please be sure to check if you have the RenderDoc Plugin enabled in your project’s Plugins settings. If it is enabled, please disable and restart the engine.

DLSS support can be verified by searching in the UE4 log files for “LogDLSS: NVIDIA NGX DLSS supported 1” and related messages. If you still do not see the dropdown menu tool, please email us at DLSS-Support@nvidia.com.


A: Yes, the NVIDIA DLSS Plugin is available to all for Unreal Engine 4.26, 4.27, and 5 Preview 2. However, non-plugin versions of DLSS are available through a standalone SDK.


A: NVIDIA provides the DLSS Plugin also within the NvRTX 4.27 branch. This will require you to download, install, and build the source locally before being able to use the plugin. To learn more on gaining access to NvRTX, please visit our Unreal Engine Developer Program.


A: DLSS workload occurs in the same spot as TAAU in the pipeline. Due to this, DOF differences are expected. Please refer to the Unreal Engine documentation for more details.


A: DLSS workload occurs in the same spot as TAAU in the pipeline. Due to this, post processing material differences can occur. Please refer to the “View Size and Render Target Size” and “Post Process Material after Temporal Upsample” sections of Unreal Engine documentation for more details.


A: The DLSS Plugin is compatible with VR Supported Unreal Engine Apps.


A: NVIDIA now has Movie Render Queue support for Unreal Engine 4.27 and Unreal Engine 5 Preview 2. Please refer to the Installation Guide as well as the Quick Start Guide in the UE 4.27 DLSS Plugin package and the Unreal Engine 5 Preview 2 DLSS Plugin package to learn more.


A: DLSS requires correct motion vectors to function properly. The r.BasePassForceOutputsVelocity console variable can be used to render motion vectors for all objects, and not just the ones with dynamic geometry. This can be useful if it's infeasible to e.g. change all meshes to stationary or dynamic.


A: Please report your findings by emailing the NVIDIA DLSS Support Team at DLSS-Support@nvidia.com. When sending your report, please also attach the *.log files from <YourProject>\Saved\Logs so we may better assist you.


A: VRS can potentially render parts of the basepass, including motion vectors with reduced resolution. However, NVIDIA DLSS requires accurate, per pixel motion vectors in order to achieve good image quality. We recommend turning of VRS when DLSS is active.

For Unreal Engine 4.27, this can be done with the built-in r.VRS.Enable console variable at runtime, .e.g, before calling UDLSSLibrary::SetDLSSMode set r.VRS.Enable to 0 when DLSS is turned on.

For Unreal Engine 4.26, this does not contain the cvar r.VRS.Enable, but could be approximated by adding this to the DLSSUpscaler.cpp static FAutoConsoleVariableRef CVarNGXDLSSVariableRateShadingOverride(

TEXT("r.VRS.Enable"),

GRHISupportsVariableRateShading,

TEXT("Console variable override for GRHISupportsVariableRateShading to conditionally allow turning Variable Rate Shading on/off at runtime when DLSS is active"),

ECVF_Default

);




Download Unity Plugin

System Requirements


Unity Plugin
Operating Systems
Windows 10 64-bit
DirectX End-User Runtimes (June 2010)
Dependencies
NVIDIA RTX GPU
NVIDIA DLSS SDK requires 471.11 driver or newer.
Development Environment
Visual Studio 2017 v15.6 or later
Engine Support
Unity 2021.2 Beta versions or newer
High Definition Render Pipeline (HDRP) Compatible Only



Unity Plugin


NVIDIA DLSS is now available through Unity 2021.2 Beta versions or newer.






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Contact Us


For inquiries regarding the plugin or for general support, please reach out to us via our support alias.


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