pub const GPU_MAX_MIPS: u32 = 6;Expand description
GPU.11 — number of mip levels decompress_chunk builds per
chunk (capped by the chunk’s own vsid / CHUNK_Z halving).
Matches the CPU demo’s OpticastSettings::mip_levels = 6, so the
GPU mip ladder reaches the same ray-depth as the CPU path
(mip_scan_dist · 2⁵). The per-mip relative-offset tables in
crate::scene::GridStaticMeta are sized to this.