Needle Actor

Needle actor is an extension of the Rigidbody, but with additional properties for a needle. It can be used along with the Puncturable component to simulate needle punctures in soft deformable objects. In order to create a needle actor, you need to:

  1. Create a NeedleActor and Assign a Physics World.

    Create an empty GameObject and add a NeedleActor component to it by clicking Add Component > MAGES > Mesh Deformations > Medical > Needle Actor in the inspector

    ../../../_images/AddComponentNeedleActor.PNG

    Assign a Physics World to the NeedleActor component

    ../../../_images/NeedleActorInspector.PNG

  2. Configure the needle points.

    Instead of using a Simulation Mesh like most of the other actor types, the Needle Actor uses a list of points to define the needle shape. Add points to the needle by clicking the ‘+’ button in the inspector and assign the transform of each point:

    ../../../_images/needle-points.PNG

    Based on these points a Simulation Mesh will be generated automatically.

    Note

    The first needle point will be used as the needle tip.

  3. Render the needle.

    To render the needle, you can add a MeshFilter and a MeshRenderer component to the GameObject and assign a mesh to the MeshFilter and a Material to the MeshRenderer.

    Note

    The mesh assigned to the MeshFilter should be aligned with the needle points in order for the collisions to be accurate.