NVIDIA Releases RTX Kit 2026.3 and RTX Mega Geometry 2.0 SDK for Developers

NVIDIA has rolled out RTX Kit 2026.3 alongside version 2.0 of its RTX Mega Geometry SDK, giving game developers a fresh batch of neural rendering and path tracing tools. The headline feature is support for streaming continuous level-of-detail clusters for high-density meshes, shown off in a new textured glTF version of the Zorah demo. The rest of the RTX Kit update covers RTX Character Rendering 1.4, RTX Dynamic Illumination 3.1 with DLSS Ray Reconstruction integration, RTX Neural Shading 1.4, and RTX Texture Filtering 1.3, which adds Collaborative Texture Filtering.

RTX Neural Texture Compression 0.10 is still in beta, but it now supports the DirectX 12 Agility SDK preview with Linear Algebra, letting Tensor Cores accelerate neural texture decompression in DirectX shaders. It and RTX Texture Filtering 1.3 also gain Windows ARM64 support, which seems to be groundwork for the RTX Spark PCs NVIDIA says start shipping in October. NTC was already running on Windows on Arm back in August.

Mega Geometry gets its first real test with Gears of War: E-Day, which begins Early Access on October 1st and launches fully on October 6th. According to NVIDIA, ray tracing with Unreal Engine 5’s Nanite geometry currently falls back to a single, low-detail static mesh, and Mega Geometry is meant to fix that. NVIDIA also says the technology is expected to be adopted into Microsoft’s DXR 2.0 standard.