Lumen Engine

(For the record, I came up with this name much much before Unreal did :P)

An Unfinished TOY ENGINE. This project is mostly used as a testing ground to experiment with and learn various graphics techniques.

Current Feature List

• Model Loading
• Voxelization (with support for cascades)
• Indirect Multibounce Diffuse Lighting (Voxel Raytracing + Screenspace RTGI/SSGI)
• Indirect Specular/Reflections (Voxel Raytracing + (parallax correct) Cubemap/Screenspace reflections)
• Support for checkerboard rendering (Heavily used for indirect lighting and other raytraced effects)
• Temporal filtering/supersampling
• SVGF For Indirect Diffuse and specialized denoising filter for indirect specular lighting
• Cook torrance BRDF for direct lighting
• Shadowmapping (with PCF filtering)
• TAA + TAA-Upscaling
• FXAA 3.11
• Volumetric Fog (Crepuscular rays + exponential fog)
• Post Processing pipeline (Bokeh DOF, Bloom, Chromatic Aberration, Contrast Adaptive Sharpening, Film Grain)
• Skybox/Environment Map Support

Known issues

• Shadow mapping iffy at steep-ish sun angles
• Noise on aggressive movement or disocclusions

Planned

• Physically based sky rendering (with volumetric clouds)
• Cascaded shadow maps with PCSS filtering

Special Thanks

• UglySwedishFish
• Lars

License

• MIT (See LICENSE)

Notice

This project is purely educational. I own none of the assets. All the rights go to their respective owners.

Screenshots

Supporting

If you'd like to support this project, consider starring it. Thanks!