Whether WgpuGeometryCache.dispose has run.
Number of geometries currently uploaded. Diagnostics and tests (§83).
Returns the buffers for geometry, uploading them on first use and
re-uploading whenever geometry.version has advanced.
normals says whether the draw at hand shades (WP-R1.5): true uploads
the geometry's normal stream — with the initial upload, or as a one-buffer
upgrade of a record first acquired by an unshaded draw — and false (the
default, and every pre-WP-R1.5 call site verbatim) never touches it, so a
scene with no lit materials records the byte-identical upload sequence it
always did. skinning is the same flag for §54's joints and weights
(RFC 0003): true uploads them on a skinned colour draw, false (the
default, every pre-skinning call site verbatim) never touches them, so a
skinless scene — and an unregistered skinned skip, which never asks —
records the byte-identical upload sequence it always did. See the module
header for why the flags are per acquisition.
Returns null — and creates no entry — when there is nothing to draw
(drawCount === 0, which includes every disposed geometry) or once the
cache is disposed. Never throws: this runs inside Renderer.render,
and §61 forbids throwing there.
Destroys every allocation and marks the cache disposed (§83). Idempotent.
Drops every record without destroying anything — the device-loss path
(§61). The allocations belong to a device that no longer exists; calling
destroy() on them would be a call against a lost device for no benefit.
Per-device store of uploaded geometry, keyed by
BufferGeometry.id.