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NVIDIA RTX Global Illumination

NVIDIA - Aug 26, 2021

NVIDIA RTX Global Illumination is a scalable solution that computes multi-bounce indirect lighting without bake times, light leaks, or expensive per-frame costs.

  • Supported Platforms
  • Supported Engine Versions
    4.27

NVIDIA RTX Global Illumination is a scalable solution that computes multi-bounce indirect lighting without bake times, light leaks, or expensive per-frame costs. RTXGI is supported on any DXR-enabled GPU and is an ideal starting point to bring the benefits of ray tracing to your existing tools, knowledge, and capabilities.


Features:

No UVs. No Light Baking. No Light Leaks.

  • Dramatically speed up iteration time with real-time ray traced lighting. No more obsessing over light probe positioning; no light or shadow leaking

Infinite Bounce Lighting in Real Time

  • RTXGI's probe-based data structure temporally accumulates and filters irradiance and distance information in real time, creating a high quality infinite-bounce cache with visibility information

Content Creation at the Speed of Light

  • Artists get instant results in-editor or in-game. Move an object or a light and global illumination updates in real time

Available for any DXR Capable GPU

  • RTXGI's scalable design gives you the control to decide when and where maximize performance or image quality

Technical Details

Code Modules: FRTXGIPlugin (Runtime) / FRTXGIEditor (Editor)

Number of Blueprints: 0

Number of C++ Classes: 5

Network Replicated: No

Supported Development Platforms: Windows 10 64-bit

Supported Target Build Platforms: Windows 10 64-bit

Supported RHIs: D3D12RHI, D3D11RHI, VulkanRHI

Documentation: RTXGI Plugin Installation Guide

Example Project: Sample project is included in the downloaded RTXGI Plugin .zip file


Video Tutorials: Getting Started with NVIDIA RTXGI Unreal Engine 4 Plugin


Important/Additional Notes:

  • The VulkanRHI and D3D11RHI can only use runtime static volumes since these RHIs do not currently support ray tracing in UE4.