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Lyrae Shaders

Lyrae Shaders

v0.1.0a
Modrinth • 91 followers • 41 457 downloads
by lucysir
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Physically-Based Real-Time Path Traced Graphics.

Product

About


Lyrae • Physically-Based Real-Time Path Traced Shaderpack

📌 NOTICE: This project is currently in very early alpha stages. Expect issues, visual artifacts and varying performance. I have a huge roadmap. I'd appreciate any kind of feedback and your support!

Features

  • Real-Time Voxel Path Tracing
  • Monte Carlo global illumination with multiple light bounces
  • Fast voxel traversal via DDA algorithm
  • AABB tracing for detailed sub-voxels

  • Sampling & Image Stability
  • Low-discrepancy blue noise sampling
  • Flexible SVGF denoiser pipeline
  • Next Event Estimation (NEE) for explicit sun sampling

  • Physically-Based Materials
  • Unified physically-based shading pipeline
  • Support for LabPBR resource packs

  • Post-Processing
  • Filmic tonemapping
  • Color grading
  • Auto exposure adjustment
  • Chromatic aberration

Community

If you enjoy my shaderpack, you can support me & my studies here: Buy Me a Coffee ❤️

You can join the discord server here, share screenshots or provide feedback and report issues.

Attributions

  • Kirilpro6284: 0th ray optimization to start in fragment position.

PBR Support

Lyrae supports LabPBR 1.3 standard. So make sure to use a resourcepack with LabPBR material support, here's a list of resourcepacks on shaderlabs site.

Performance Tips

  • I tried to write detailed descriptions for all settings, so you can hover over them in-game for more detailed performance tips.
  • Samples is one setting with the most impact on the performance, because it increases the path complexity exponentially. Try to keep this at 1 if you want to enjoy real-time.
  • You can try changing the Resolution Scale setting, lowering this from 100% will make the lighting quality lower.
  • For most scenarios 3 bounces is enough. 2 bounces will not have indirect lighting, so GI will look less accurate.
  • If you are in a completely isolated room where no sunlight is visible, you can try disabling NEE. Note that disabling NEE will break sun light.
  • You generally shouldn't mess with SVGF settings unless you know what you're doing. If you are okay with noisy image you can disable spatial filtering.
Preview

Product images

Environment

Requirements & compatibility

Compatibility & requirements

Iris1.20 – 1.20.11.21 – 1.21.11

Local host

Required

Hosting on services

Unsupported

Terms

License

Terms for using, modifying and redistributing this product.

LicenseRef-Project-Lyrae-LicenseModrinth
Release

Latest release

v0.1.0a

23.01.2026 · Modrinth

Full Changelog

  • New:
  • New SVGF denoiser
    • Lots of new flexible filtering settings
    • Much better spatial denoising than 0.0.4a
    • Treat diffuse and specular radiance differently
  • 0th ray optimization thanks to Kirilpro6284
    • No more weird transparent or xray blocks
  • Auto exposure adjustment
  • Toggle setting for post color grading
  • More sub-voxel AABBs:
    • Stair blocks (all variations)
    • Fence block...