# Alpha Piscium v1.9.2-Beta1

## Highlight
- Improved ReSTIR GI, denoising, shadows, and compute-pipeline performance
- Stabilized specular GI demodulation and fixed remaining numerical overflow

## New
- Added configurable built-in metalness overrides and material data for known blocks
- Added comprehensive English and Simplified Chinese maintainer documentation

## Improvement
- Optimized pass ordering and combined direct lighting with sky compositing
- Improved ReSTIR spatial clustering, tiling, temporal neighbor sampling, and reuse-texture generation
- Reduced compute-shader texture fetches, material decoding, dynamic indexing, and redundant work
- Simplified and optimized GI denoising by removing spatial variance processing and unrolling shared-memory kernels
- Improved specular denoiser accumulation, history reprojection, and remodulation
- Bypassed TAA-dependent FXAA and sharpening passes when TAA is disabled

## Fix
- Fixed selection-box geometry writing an unintended view-depth target and causing a glow artifact
- Fixed specular GI numerical overflow, built-in PBR F0 handling, and minimum-reflectance clamping
- Fixed CIE XYZ luminance calculations
- Fixed clouds disappearing during shadow sampling
- Fixed atmospheric view-depth reconstruction, GI history dithering, and invalid spatial-reuse traces

## Misc
- Removed obsolete shader code, redundant texture reads, unused denoiser resources, and stale GI debug data
- Updated package branch detection and support for newer Minecraft version numbers
- Fixed Windows options-generator recursion and Kotlin launcher detection
