- the world camera's pick regression: its off-screen render target carried `scale_factor: 1.0`, so on a Retina display the camera reported physical pixels as logical and a centred cursor cast its pick ray into the upper-left quadrant — unit and GameObject picks, the occlusion ray, chat bubbles and `world_to_viewport` all broke at once; the target now carries the window's real scale factor, re-stamped when dragging between displays changes it mid-session — and the perf pill's overlap dodge had the same disease in miniature (`GetBottom()` answers in WoW UI units, the pill lays out in window px), so it now answers a fraction of the screen and works at any window height
- `boothHalfRate` defaults back to half-rate: a body pane's off-screen booth pass rendered every frame reads +7.6 ms of GPU at 4K (~1.6 ms at 1600×900), on exactly the weak GPUs that felt the last snapshot — the doll's item effects keep full speed, since they key on the pacing regime rather than the camera's active bit, so only the 30 fps animation cadence returns, and full-rate stays one `SetCVar` away
- a spell cast by a GameObject arrives with caster guid 0 — vmangos writes the caster slot from a `Unit*` its GameObject constructor never sets — and the whole visual body was dropped at the guid lookup; the decode now reads an empty caster slot as the packet's first guid, which with no cast item IS the caster, so the Lightwell's click plays its impact kit (sound 3155 and the head flash) instead of only the aura glow that hid the miss, and the object stops being mislabelled a cast item
- the world map's black hairlines: a `SetTexCoord` crop is not a texture, and a POI icon magnified to 2.08 px per texel sampled half a texel past its crop into the neighbouring atlas cell — an opaque black row bleeding over a cell that is fully transparent (the empty cell is the reference's own zone-level substitution); `UiQuad::uv_clamp` now insets the sampling window half a texel per axis, so a crop renders as if its sub-rect were its own clamped texture, and `WOW_UI_PICK=x,y` names every quad under a pixel — it found this one in a single run
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
