vrm-springbone-physics

VRM hair physics flies upward or explodes in three-vrm when SpringBone updates are not driven by seconds-based delta time. Clamping the delta time from a THREE.Clock to 0.05 seconds and passing it to vrm.update stabilizes the simulation.

To fix VRM SpringBone physics sticking out horizontally, adjust the collider radii to compensate for UniVRM export quirks and ensure colliders scale properly with the VRM model during runtime scaling.

To update VRM SpringBone physics correctly, initialize the physics before the render loop, obtain delta time from a THREE.Clock, clamp it to 0.05 seconds, and call vrm.update(delta) every frame to ensure stable, delta-time aware physics.

VRM SpringBone colliders do not always scale automatically with the model in three-vrm. Implementing runtime scaling awareness ensures that colliders scale accurately with the VRM model when the scene or model is scaled.

Unnatural clothing movement in VRM models loaded with three-vrm is caused by incorrect delta-time handling and improper collider radius settings. Enforcing delta-time updates and tuning collider radii resolves the unnatural physics behavior.

Using three-vrm SpringBone physics without clamping the delta time causes physics explosions and unnatural behavior. You must clamp the delta time to a maximum of 0.05 seconds before passing it to the vrm.update function.