joint-body-target-exists#

Code

JT.002

Validator

latest+

Compatibility

openusd

Tags

✅

Summary#

Targets set to Body0 and Body1 relationships must exist.

Description#

UsdPhysicsJoint and its subtypes define two relationships: Body0 and Body1. Both relationships must target prims that exist in the stage or remain empty.

Why is it required?#

  • If either relationship targets a prim that doesn’t exist in the stage, the joint cannot function properly during simulation.

Examples#

# Invalid: Joint prim's target does not exist in the stage
def PhysicsFixedJoint "FixedJoint"
{
   rel physics:body1 = </Cube>
}

# Valid: Joint prim's target exists in the stage
def Cube "Cube" (
   prepend apiSchemas = ["PhysicsRigidBodyAPI"]
)
{
}

def PhysicsFixedJoint "FixedJoint"
{
   rel physics:body1 = </Cube>
}

How to comply#

Set Body0 and Body1 targets to existing prims in the stage or leave them empty.

For More Information#