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Defines the collision surface parameters.

Mandatory children

  • Bounciness: Bounciness coefficient of restitution. When two objects collide, the total restitution is the multiplication of both values. Setting one to 0.0 will null out bounciness.

    • Var: smtk_coefficient
    • Type: Input
    • Default: 0.1
  • Friction: Static friction value of the surface. A good approximation would be that the friction between two surfaces A and B equals to max(A, B, A*B). A result of 1 would mean no friction.

    • Var: smtk_float
    • Type: Input
    • Default: 0.5

Optional children

  • Collision tag: Collision material properties. If no property is set, solid will be enabled by default.

    • Var: smtk_collision_material_array
    • Type: Input
    • Possible values: "all", "none", "solid", "liquid", "conductive", "reflective", "barcode", "rfid", "magnet"
    • Default: "solid"
  • Collision group: Collision group number. If not used, the object will collide with all objects.

    • Var: smtk_collision_group_array
    • Type: input
    • Possible values: "group_1", "group_2", "group_3"
    • Default: "group_1"


Below is a table showing which materials can be detected by the different sensor technologies.

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