SidecarBuilder::build (the one-shot bake used by the models-panel export
command in bonsaiviewer) never called reorderSidecarByMorton, unlike the
live streaming loader. The chunk table was therefore left empty, so the
exported .ifcview had its geometry laid out non-contiguously and only the
metadata blocks compressed. Reorder before writeSidecar to match the
loader so exported sidecars stream correctly.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
driveStreamingLoads could deadlock: a chunk waiting on asynchronous
pool growth parks in a frame-counted backoff cooldown, but once the
render loop quiesced after the settle burst the frame index froze, so
the cooldown never expired and streaming stalled part-loaded until the
user moved the camera. Keep the loop alive while growth may still land
(growth_pending() || can_grow()), exposed via a new BufferPool accessor.
loadSidecarMetadataWeb put the model in the scene before reading the
element-metadata block header, leaving a window where the locator was
still zero. A getObjects() landing in that window could not distinguish
"locator not read yet" from "sidecar has no element block" and latched
the model as permanently empty. Read the 16-byte header first, then
apply; carry the locator through applyCachedModel so it is set before
any web element-metadata fetch can run.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Right-clicking a model in the models panel now offers "View Selected Model",
which frames the camera on just that model's geometry — View All, scoped to
one model. With several models selected the action reads "View Selected
Models" and frames their union, matching how the panel's existing Move to
Group already treats a multi-selection.
The AABB fold behind viewAll moves into InstanceCompose, which exists so this
kind of logic is unit-testable without a Qt window or a wgpu device (populating
ViewportCore's model map needs a real GPU, so the fold was previously
untestable in place). It splits in two:
- sceneWorldAabb — every VISIBLE model, what viewAll frames.
- modelsWorldAabb — only the named models, hidden or not. A model the caller
named explicitly is framed even if hidden; second-guessing
that is worse than honouring it. Models with no loaded
geometry contribute nothing, and if none of them do the
camera is left alone rather than flying to the origin.
Both are covered by six new cases in test_instance_compose (131 total).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Give host pages a real API over the web viewer, not just "embed it and listen
for picks": read/set the camera, read/set multi-selection, enumerate every
object with its IFC identity, drive per-object visibility, and override
object colours.
The wasm boundary keeps to object_ids (u32 arrays marshalled through the heap,
with an "ask twice" convention on the getters); web/ifcviewer.js layers IFC
GlobalId resolution on top, from the element table getObjects() fetches. Every
id-taking call accepts an objectId, a GlobalId, or an element object.
Colour override needed no new mechanism: color_override_rgba8 was already
plumbed through the sidecar, the instance SSBO, the WGSL shader and the
opaque/transparent cull classifier, but nothing ever wrote a non-zero value
into it. setObjectsColor is the missing writer, which is why an alpha below 255
correctly reclassifies the instance into the transparent pass.
Two bugs surfaced while wiring this up:
- wgpu_initialized_ was only ever set by the Qt desktop host, so on web every
upload guarded on it was a silent no-op — including the pre-existing
recomposeAndUploadModel that federation transforms depend on. The core now
latches it in its own web init.
- The demo pages were copied into the build dir by a POST_BUILD command on the
wasm target, so they only refreshed when the wasm itself relinked; editing a
page left a stale copy that the dev server (and the Playwright suite) kept
serving. Each page now has its own copy rule with a real dependency, and
sample.ifcview is a LINK_DEPENDS so regenerating it forces a relink.
applyCachedModel also now keeps the element metadata it already parses on the
path-based load (it was being dropped), so the embedded sample has GUIDs and
the demo works with no file to pick.
The sample model was three coincident cubes, which made per-object hide and
colour look like no-ops — whatever you hid was still drawn by the box behind
it. make_sample.py regenerates it as a slab, a wall and a beam in distinct
places, so the fixture is reproducible rather than an opaque blob.
Demoed by web/scripting.html (linked from the index; viewer is on
window.viewer) and covered by tests/scripting.spec.mjs — 6 cases against a real
GPU, asserting visibility and colour at the pixels, not just at the API.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Andrej730