DLSS 5 Neural Rendering SDK access for a custom Windows engine

Hello NVIDIA team,

I am developing SMILE 2.0, a custom Windows game engine, and would like
to evaluate DLSS 5 / 3D-Guided Neural Rendering on an RTX 5090.

Our current native renderer uses Direct3D 11, with Direct2D/DirectWrite
for UI and text. A bounded Direct3D 12 development path is possible
if the official integration requires it.

We downloaded and inspected the official Streamline 2.14.1 x64 package.
It declares kFeatureDLSS_NR = 1004, maps it to dlss_nr, and mentions
sl.dlss_nr in the changelog.

However, our inspection did not find the neural-rendering plugin
implementation, feature-specific header, or integration guide.

Could you clarify:

  1. Where can a custom-engine developer obtain the authorized DLSS 5
    neural-rendering development package and matching documentation?

  2. Is access currently restricted, and what is the application process?

  3. Which graphics APIs and interoperability arrangements are supported?

  4. What are the minimum driver/OS requirements and the runtime/model
    redistribution and application-registration requirements?

Our test case is an existing animated battle scene in our engine,
not an Unreal Engine project.

We are specifically requesting DLSS 5 neural rendering, not Super
Resolution, Ray Reconstruction, or Frame Generation.

Thanks,

-Sin

Smile 2.0 Project in GitHub: