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Second Life Creation

llPassCollisions

void llPassCollisions(integer Pass)

Configures how collision events are passed to scripts in the linkset.

If Pass == TRUE, collisions involving collision-handling scripted child prims are also passed on to the root prim. If Pass == FALSE (default behavior), such collisions will only trigger events in the affected child prim.

Parameters
Pass (integer)
Boolean, if TRUE, collisions are passed from children on to parents.
Technical Details
  • Return Type: void
  • Energy: 10
default {
    collision_start(integer num_detected) {
        // Enable collision pass-through for child prims
        llPassCollisions(TRUE);
        llSay(0, "Collision pass-through enabled");
    }
}

Notes

Section titled “Notes”
  • By default (Pass = FALSE), collisions are only reported in the script of the prim that actually collided
  • When Pass is set to TRUE, collisions involving child prims with collision handlers will also be passed to the root prim’s scripts
  • Useful in linked object scenarios where you want the root prim to be aware of collisions happening to any part of the linkset
  • This function affects how collision events (collision_start, collision, collision_end) are propagated through the linkset

See Also

Section titled “See Also”