Shard Inspector

The Shard Inspector shows when the Impact solver is active, or when a fractured shard is selected. It is collapsed by default.

With no shard selected

The panel asks you to select a fractured shard. It offers three display toggles:

Setting	What it does
Stream to Mesh Attributes	Writes live velocity, damage, cluster ID and sleep state into the shard meshes’ attributes on every step or bake, so you can inspect them in the Spreadsheet Editor and in Geometry Nodes. Off by default.
Bond Stress Lines	Draws 3D lines between bonded shards, colour-coded by tension and shear stress.
Proximity Bubbles	Draws wireframe spheres showing how far a moving trigger shard’s proximity wake detection reaches.

With a shard selected

Row	Meaning
Shard	Its index and object name.
Cluster	The macro cluster it belongs to.
Fracture depth	How many times it has been re-fractured: L0 is an original piece.
Plastic strain	Permanent deformation as a percentage, with yielding or elastic.

While the simulation runs, these rows join them:

Row	Meaning
Speed, Velocity, Spin	Live motion.
State	Anchor (pinned), Asleep or Awake, with kinematic when it is keyframed.
Proximity timer	The wait before a held piece is released.
Will shatter	Whether the shard would shatter if it hit something now, and why not. A shard at depth 0 or 1 shatters at speeds of 7.5 m/s or more (the default Shatter Speed).

Without a running simulation the panel says the shard is at rest.

Bonds

Glue bonds lists how many of the shard’s bonds are intact and how many are broken. For up to six neighbours it shows each one as snapped, a stress percentage, or intact.

Buttons

Button	What it does
Wake	Wakes the shard from sleep in the live solver.
Sleep	Puts it to sleep and zeroes its velocity.
Kinematic	Toggles between fixed or keyframed and dynamic.