Move the first-person walkthrough into @pascal-app/viewer (BVHEcctrl +
GlbWalkthroughController) and round out the GLB-consuming viewer:
- Walkthrough: fallback ground only on level 0 (upper floors rely on baked
slabs), hidden spawn marker, auto pointer-lock on enter, single-Esc exit via
pointerlockchange, force perspective on enter / restore on exit.
- GlbScene: monochrome strips baked textures and recolours meshes by surface
role using the active theme's clay tints; spawn node hidden from render.
- glb-export: camera/label/spawn identity extras for the viewer.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Reverts the LOD switching (0469b256). Rendering lod1/lod2 on zoom-out produced
WebGPU validation errors (invalid bindGroup_object) on real-GPU browsers — not
caught earlier because headless Chromium falls back to the WebGL2 backend, so
the WebGPU path was never exercised. The viewer returns to loading the baked
KTX2 lod0 (still the 22MB->12MB win). LOD switching to revisit with a real-GPU
test loop and on-demand loading instead of preload-all.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
GlbScene accepts an optional lodUrls list and swaps rendered detail by camera
distance to the building's world-space center: lod0 (interactive — identity,
selection, zones, clips all bind here) for normal + building-view distances,
simpler visual-only levels only past ~2.5R / ~8R. Single-URL callers are
unchanged. useGLTFKTX2 now accepts a URL array.
Manual visibility toggling rather than THREE.LOD: THREE.LOD measures distance
to its own origin (0,0,0), which mis-selected levels (blanking the scene) when
the baked geometry is offset from the origin.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Add `GlbScene` — the viewer that renders a baked GLB artifact with no
parametric scene graph, and finish the phase-1 export contract it consumes.
Viewer (packages/viewer):
- GlbScene: loads the artifact, drives a building → level → zone → node drill
hierarchy on useViewer.selection. Room/zone picking resolves from the floor
plane (ray ∩ floor + point-in-polygon), node picking uses a footprint test,
so walls/ceilings/zone-helpers never skew or block selection. Level modes
(stacked/exploded/solo), dollhouse (hide a focused floor's ceilings + roof so
rooms are visible and pickable), reconstructed zone floor fills + gradient
edge borders + room labels (faded, hover-brightened), baked door/window
open clips, click-outside / empty-space deselect, and the shared outline
post-FX. Exported as GlbScene/GlbLevel/GlbIdentity/GlbHover.
- post-processing: composite the zone-pass tint into the base scene so rooms
show whether or not SSGI is enabled (previously only added in the SSGI branch).
Export contract (packages/editor/src/lib/glb-export.ts):
- Convert WebGPU NodeMaterials to classic glTF-standard materials; decompress
KTX2 maps via WebGPUTextureUtils so GLTFExporter can embed them.
- Stamp name + extras identity (pascalId/kind/label/openable/clips), bake
door/window open clips (loop:false), strip editor overlays (off-layer +
invisible-material hitboxes) so cutouts aren't plugged.
- Fix opaque-but-flagged-transparent materials (no spurious alphaMode=BLEND)
and BackSide → FrontSide + winding flip (glTF has no back-face-only).
- Force levels + zones visible and stamp level display names + zone polygons so
every floor bakes and /viewer can reconstruct rooms and label the breadcrumb.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
