Wheels of safety_mobileShutoff_a01 become bodies with joints; note two empty joints

README.md

@@ -88,8 +88,8 @@ loader.load('engineAssembly_v8_engine_a01.glb', (gltf) => scene.add(gltf.scene))
 
 ## Physics and moving parts
 
-2,587 files carry the rigid bodies, mass and physics materials of their SimReady USD. 928 of
-them also carry joints, 5,546 in all: door hinges, drawer slides, buttons, wheels and lids. Each file holds
+2,587 files carry the rigid bodies, mass and physics materials of their SimReady USD. 929 of
+them also carry joints, 5,550 in all: door hinges, drawer slides, buttons, wheels and lids. Each file holds
 this data in two forms:
 
 - `KHR_physics_rigid_bodies`, the Khronos glTF physics extension. Each part has a `motion` with its mass, center of
@@ -154,9 +154,13 @@ mesh instead, which every engine can build, so hollow parts such as a cabinet bo
 with any loader. Joint drives and USD simulation settings are not carried over. Materials are converted to glTF PBR,
 so MDL-only shader effects are lost.
 
+Two joints in the USD are left out because they hold nothing: the fixed joint of
+`ladder_multiPurpose_aluminium_a05` points at a part with no rigid body, and one fixed joint of
+`serviceTool_brakeCaliper_pistonWindBackKit_a01` joins a body to itself.
+
 ## Changelog
 
-- 2026-10-29: Added physics from the USD files: rigid bodies, mass, physics materials and 5,546 joints, as
+- 2026-10-29: Added physics from the USD files: rigid bodies, mass, physics materials and 5,550 joints, as
   `KHR_physics_rigid_bodies` and as node extras. The viewer shows a slider for each moving part. The files before this
   change are at the `v1` tag.
 - 2026-10-29: Geometry is encoded at meshopt's high level. The set went from 4.0 GB to 3.2 GB with the same

glb/safety_mobileShutoff_a01.glb

@@ -1,3 +1,3 @@
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+oid sha256:7b42738ede3ddcdf8114b8577ca4586845ba5504ca6171e447d412ebad4eac8c
+size 2892824

manifest.jsonl

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thumbs/metadata.jsonl

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