Experimental Radiant GI
Experimental global illumination with world probes, software tracing and color transfer. Available in a separate test build.
- A separate experimental build
- Software tracing and world probes
- Explicitly published limitations
Beyond direct lighting
World probes transfer color between surfaces and provide approximate reflections. Radiant is based on software HDDA tracing.
Read the guide
Forward+ and Deferred
The test build was exercised on an RTX 3070 with DX12 and Vulkan. Radiant is not included in the current installed runtime.
Read the guide
Current status
Noise, blotchy metals and off-screen reflection limits remain. A general advantage over SDFGI has not been established; development continues.
Read the guideRelated features
All featuresDeferred
Detailed surfaces and clustered lighting. Deferred combines a G-buffer, shared materials and Forward passes for transparency.
Game-engine post-processing and color grading
Give every frame its character. Exposure, color, bloom and optics through camera profiles and local volumes.
An engine for making 3D games
Create detailed 3D worlds. Entities and prefabs, Terrain and Voxel Tools, PBR materials, lighting and post-processing.
Questions and answers
Is Radiant production-ready?
No. It is experimental and must not be assumed present in a downloadable distribution.
Is it better than SDFGI everywhere?
That advantage has not been established. Choose using scene-specific evidence and measurements.
Start building
Renderers and diagnosticsProfiles and post-processingThe Reckfell community
News, source code and a direct line to the team.
Download Reckfell Engine
Windows x64, C#/.NET 10 and SharpGraph. Free for personal and commercial games.