forked from 1b-agent/opencadstudio-upstream
`HatchGpu.world_aabb` was built by iterating `model.boundary` — but those vertices are stored as f32 offsets from `model.world_origin` (precision anchor for UTM-scale WCS). So the AABB was in *origin-relative* space, not the local space `view_proj` projects from. `aabb_offscreen` (Phase 2.3) then asked "is this rect near (0,0) in NDC?" instead of "is this rect at the hatch's actual position?" — which culled in-view hatches whenever the camera moved off the origin and rendered out-of-view ones near it. Sub-pixel LOD (`aabb_below_pixel`, Phase 3.3) survived because it measures a projected diagonal, which is translation-invariant. Fixes: - Add `world_origin` back when building `HatchGpu.world_aabb`, so the stored rect is in absolute local space. - 25 % margin on the viewport rect in `aabb_offscreen`, matching the wire path's `view_world_aabb` margin — keeps hatches at the edge rendered while panning. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>