NVIDIA RTX Kit Officially Launched
After a slight delay beyond its initial late January launch window, the NVIDIA RTX Kit is now available to the public. Developers can download the kit from GitHub. It comprises several robust components, the most noteworthy being the RTX Neural Shaders (RTXNS).
Introduction to RTX Neural Shaders
The sample is intended as a starting point for developers interested in bringing Machine Learning (ML) to their graphics applications. It provides a number of examples to help the reader understand how to train their own neural networks and then use those models to perform inference alongside their normal graphics rendering.
RTX Neural Shaders leverages the Slang shading language and the Vulkan Cooperative Vectors extension to harness the machine learning capabilities of GPUs for enhanced graphics.
What’s Included in the RTX Kit
While the highly anticipated RTX Neural Materials is not part of the current launch, the kit includes a plethora of other groundbreaking technologies. For instance, RTX Neural Texture Compression offers a demo that highlights its impressive memory reduction capabilities. A recent analysis by Compusemble revealed a substantial drop in memory usage, decreasing from 272 MB to just 11.37 MB, though this may result in a performance trade-off when utilizing the NTC AI inference model.
RTX Mega Geometry
The RTX Kit also includes RTX Mega Geometry, which can be tested through a newly compiled sample. This technology has already found application in the gaming industry, notably in Alan Wake 2, although the tech demo demonstrates its versatility and potential further expansion.
Advanced Character Rendering
Another intriguing component is RTX Character Rendering, offering insights into path tracing for hair and skin. Particularly noteworthy is the introduction of the Linear-Swept Sphere (LSS) data structure with the latest GeForce RTX 50 graphics cards, which significantly enhances performance. NVIDIA reports that rendering animated hair using LSS is approximately twice as fast compared to traditional methods, consuming only a fraction of the VRAM. This innovation is set to debut in the upcoming February update for Indiana Jones and the Great Circle.
New Technology: RTX Texture Filtering
One surprising addition not previously disclosed at CES 2025 is RTX Texture Filtering (RTXTF).This technology employs random sampling of textures post-shading to filter challenging volumes, thereby minimizing artifacts and enhancing overall image quality.
Streamline SDK Update
In tandem with the RTX Kit release, NVIDIA has also updated its Streamline SDK to version 2.7.2. This update brings new support for DLSS 4 Multi Frame Generation and introduces advanced models for Ray Reconstruction, Frame Generation, and Super Resolution. Anticipation builds around the possibility of the first DLSS 4 mods becoming available soon.
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