lab.VERSION, lab.GAME (.local/minecraft/<version>) and lab.RESOURCES
(.local/horizon-client/<version>) come from the lock, and lab.version_info()
reads the pinned client jar's version.json. Every harness, generator and
tool that named 26.3 (resource folders, jar and source paths, result
records, the vanilla client's --version and asset index, the bare login
client's protocol, the benchmark's options.txt data version, the packet id
table's header) uses them, so a candidate worktree pinned to another version
runs them unchanged.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Horizon averaged each mip level's alpha plainly, so a cutout texture's
transparent edges grew past the alpha test with every level: the cactus
side's transparent border columns opened see-through slits along its
corners from about 40 blocks, more than vanilla shows. The sprite array's
mips now come from a port of MipmapGenerator.generateMipLevels: the
texture's .mcmeta mipmap_strategy (auto: cutout when a pixel is fully
transparent) and alpha_cutoff_bias, solidify or the dark fill on the base,
meanLinear or darkenedAlphaBlend, and scaleAlphaToCoverage keeping every
cutout level's alpha-test coverage at the base level's.
tools/test_mipmap_parity.py runs vanilla's MipmapGenerator and the port on
every static 16x16 block texture and a sample of item textures.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>