Skip to main content

Entity Components Reference

  • core

    • Decal Projector

      decal_projector

      Decal Projector.

      Requires:

      local_transformmaterial_refbox_geometry
      Schema

      zIndex

      Integer

      Default:0

      Z-Index order of the decal projection. The higher index will render on top of the lower ones.

    • Entity UID

      euid

      Unique identifier for an entity.

      Schema

      value

      Entity Unique Identifier

      Unique identifier value.

    • Lineage

      lineage

      Lineage of the entity through linkers.

      Schema

      ordinal

      Integer

      Default:0

      Ordinal number of this entity in respect of its siblings.

      parentUUID

      Entity Unique Identifier

      UUID of the parent of this entity (default is root).

    • Local AABB

      local_aabb

      Local Axis Aligned Bounding Box of the entity.

      Schema

      max

      Vector3

      Maximum point of the box.

      min

      Vector3

      Minimum point of the box.

    • Name

      debug_name

      Name of the entity.

      Schema

      value

      String

      Entity name.

    • Overrider

      overrider

      Overrides a given entity in a sub scene.

      Schema

      componentsToDetach

      Hashes of the components to detach from the overridden entity.

      deleter

      Boolean

      Default:false

      Mark the overridden entity as deleted.

      entityRef

      Entity Reference

      Entity to override.

      {linkage,originalEUID,}

    • Script Element

      script_element

      References a script and specifies input values if needed.

      Schema

      dataJSON

      JSON

      Input values as described in the referenced script in their original JSON format.

      scriptRef

      Asset UUID

      UUID of the referenced script.

    • Script Map

      script_map

      References multiple scripts.

      Schema

      elements

      List of scripts.

    • Tags

      tags

      Tags used to filter entities.

      Schema

      value

      Tag list.

    • Transform

      local_transform

      Local transform of the entity.

      Schema

      eulerOrientation

      Vector3

      Default:[0,0,0]

      Orientation of the entity expressed as euler angles.

      globalEulerOrientation

      Vector3

      Default:[0,0,0]

      Last global orientation of the entity expressed as euler angles submitted by a user. This value may not be valid, and should be checked.

      orientation

      Quaternion

      Default:[0,0,0,1]

      Orientation of the entity expressed as a quaternion.

      position

      Vector3

      Default:[0,0,0]

      x, y, z position of the entity.

      scale

      Vector3

      Default:[1,1,1]

      x, y, z scale of the entity.

  • asset

    • Environment

      environment

      The environment of a scene. Used to give a scene a skybox.

      Schema

      irradianceUUID

      Asset UUID

      Reference to the irradiance cubemap.

      radianceUUID

      Asset UUID

      Reference to the radiance cubemap.

      skyboxUUID

      Asset UUID

      UUID of the skybox cubemap.

    • Material

      material

      References a shader and specifies input values if needed.

      Requires:

      mesh_ref
      Schema

      constantsJSON

      JSON

      Specialization constants values as described in the referenced shader in their original JSON format.

      dataJSON

      JSON

      Input values as described in the referenced shader in their original JSON format.

      isDoubleSided

      Boolean

      Default:false

      Whether the material is double sided or not.

      shaderRef

      Asset UUID

      UUID of the referenced shader.

    • Material Reference

      material_ref

      Reference to a material.

      Requires one of:

      mesh_refdecal_projector
      Schema

      faceCulling

      Integer

      Default:0(Inherit from material)

      Face culling mode. 0 to inherit from material, 1 for single sided, 2 for double sided.

      0Inherit from material1Single Sided2Double Sided

      value

      Asset UUID

      UUID of the referenced material.

    • Mesh Reference

      mesh_ref

      Reference to a mesh.

      Requires:

      local_transform

      Requires one of:

      materialmaterial_ref
      Schema

      shadowCastingMode

      Unsigned Byte

      Default:1(On)

      Whether or not this mesh casts shadows.

      0Off1On

      submeshIndex

      Integer

      Default:0

      Index of the submesh inside the mesh's submesh array.

      value

      Asset UUID

      UUID of the referenced mesh.

    • Point Cloud Reference

      point_cloud_ref

      Reference to a point cloud.

      Requires:

      local_transform
      Schema

      value

      Asset UUID

      UUID of the referenced point cloud.

    • Scene Reference

      scene_ref

      Reference to a scene.

      Requires:

      local_transform
      Schema

      maxRecursionCount

      Unsigned Integer

      Default:1

      Maximum number of times a scene appears when it references itself.

      value

      Asset UUID

      UUID of the referenced scene.

    • Sound Reference

      sound_ref

      Reference to a sound.

      Requires:

      local_transform
      Schema

      attenuationModel

      Unsigned Byte

      Default:0(No Attenuation)

      Attenuation Model.

      0No Attenuation1Inverse Distance2Linear Distance3Exponential Distance

      attenuationRolloffFactor

      Float

      Default:1

      Attenuation rolloff factor.

      autoPlayOnStart

      Boolean

      Default:false

      Whether or not the sound plays automatically when the simulation starts.

      dopplerFactor

      Float

      Default:1

      Reduce or enhance the doppler effect.

      inaudibleBehavior

      Unsigned Byte

      Default:0(Tick)

      Behavior of a sound when it becomes inaudible.

      0Tick1Don't Tick2Kill

      looping

      Boolean

      Default:false

      Whether or not the sound loops.

      maxDistance

      Float

      Default:50

      If distance from audio souce is >= maxDistance, audio is inaudible.

      minDistance

      Float

      Default:5

      If distance from audio souce is < minDistance, audio is at max volume.

      pan

      Float

      Default:0

      Pan. -1.0 is left, 1.0 is right.

      playSpeed

      Float

      Default:1

      The speed at which the sound will play. 1.0 is normal.

      value

      Asset UUID

      UUID of the referenced sound.

      volume

      Float

      Default:1

      Volume from 0.0f to 1.0.

  • camera

    • Camera

      camera

      Virtual camera.

      Requires:

      local_transform

      Requires one of:

      orthographic_lensperspective_lensstereoscopic_lens
      Schema

      dataJSON

      JSON

      Input values as described in the referenced render graph in their original JSON format.

      renderGraphRef

      Asset UUID

      UUID of the referenced render graph this camera should use.

      renderTargetIndex

      Integer

      Default:-1

      Index of the render target to blit.

    • Custom Lens

      stereoscopic_lens

      A lens that applies a custom projection.

      Requires:

      camera
      Schema

      cs_from_vs

      Matrix4

      Projection matrix.

    • Orthographic Lens

      orthographic_lens

      A lens that applies an orthographic projection.

      Requires:

      camera
      Schema

      zFar

      Float

      Default:100

      Far plane.

      zNear

      Float

      Default:0

      Near plane.

      zoomFactor

      Vector2

      Default:[1,1]

      Zoom factor to apply to the projection.

    • Perspective Lens

      perspective_lens

      A lens that applies a perspective projection.

      Requires:

      camera
      Schema

      farPlane

      Float

      Default:0

      Distance from the viewer to the far clipping plane.

      fovy

      Float

      Default:60

      Field of view angle in the y direction.

      nearPlane

      Float

      Default:0.01

      Distance from the viewer to the near clipping plane.

      offset

      Vector2

      Default:[0,0]

      Offset of the projection for stereoscopic rendering.

  • light

    • Light

      point_light

      A light with color and intensity. A point light by default, add a spot light component to add a cutoff. Can be parameterized to simulate the atmosphere sun.

      Requires:

      local_transform
      Schema

      color

      Vector3

      Default:[1,1,1]

      Light color.

      intensity

      Float

      Default:1

      Light intensity.

      isDirectional

      Boolean

      Default:false

      Make this light directional, position is ignored in this case.

      isSun

      Boolean

      Default:false

      Make this light direction control the atmosphere sun direction. If more than one light is marked to be a sun results are undefined.

      range

      Float

      Default:0

      The range for the point light. If the range is 0, then physically correct point light attenuation function is used.

    • Reflection probe

      reflection_probe

      Omni directional reflection probe parameters, used for local cubemap reflection generation.

      Requires:

      local_transformbox_geometry
      Schema

      farDist

      Float

      Default:100

      Distance to the far plane.

      nearDist

      Float

      Default:0.1

      Distance to the near plane.

      offset

      Vector3

      Default:[0,0,0]

      x, y, z offset of the probe reflection origin.

      quality

      Integer

      Default:128

      Resolution of the reflection map.

    • Shadow caster

      shadow_caster

      Enables a light to cast shadows.

      Requires:

      point_light
      Schema

      accumulateShadowCascades

      Boolean

      Default:true

      For directional lights, accumulate all shadow cascades.

      bias

      Float

      Default:0.004

      Bias to apply to avoid self shadowing artifacts.

      cascadeCount

      Byte

      Default:4(Quad Cascade)

      For directional lights, number of cascades.

      0Static Shadow Map1Single Cascade2Dual Cascade3Triple Cascade4Quad Cascade

      cascadeSplitLambda

      Float

      Default:0.94

      For directional lights, adjusts the distribution of cascade splits in Cascaded Shadow Mapping for directional lights. A value of 0 results in uniform (linear) splits across the view frustum, while a value of 1 skews the splits toward the camera, providing higher shadow resolution near the viewer and lower resolution in the distance. Intermediate values blend linear and logarithmic distributions for a balanced result. The value ranges from 0 to 1.

      farDist

      Float

      Default:100

      Distance to the far plane.

      nearDist

      Float

      Default:0.1

      Distance to the near plane.

      quality

      Integer

      Default:1024(Low (1024x1024))

      Resolution of the shadow map.

      256Ultra-Low (256x256)512Very Low (512x512)1024Low (1024x1024)2048Medium-Low (2048x2048)3072Medium (3072x3072)4096Medium High (4096x4096)6144High (6144x6144)8192Ultra High (8192x8192)

    • Spot Light

      spot_light

      Adds a cutoff to a point light to simulate a spot light.

      Requires:

      point_light
      Schema

      IESProfile

      Asset UUID

      Reference to a IES 2d texture.

      cutoff

      Float

      Default:30

      Cutoff angle.

    • Volume Filter

      volume_filter

      Filtering properties applied to the volume.

      Requires:

      volume_ref
      Schema

      applyGaussianFiltering

      Boolean

      Default:false

      Apply gaussian filtering on voxels.

      enable3D

      Boolean

      Default:true

      Whether or not this volume is visible in the 3D view.

      enableMPR

      Boolean

      Default:true

      Whether or not this volume is visible in the MPR view.

      range

      Vector2

      Default:[0,1]

      Voxel intensity range displayed, not applicable if outside volume material range.

      sampleUnfiltered

      Boolean

      Default:false

      Are texel values from the voxel texture sampled unfiltered.

    • Volume Material Reference

      volume_material_ref

      Reference to a material to use with a volume.

      Requires:

      volume_ref
      Schema

      value

      Asset UUID

      UUID of the referenced volume material.

    • Volume Reference

      volume_ref

      Reference to a volume made of voxels.

      Requires:

      local_transformvolume_material_ref
      Schema

      texture3dRef

      Asset UUID

      UUID of the referenced 3D texture.

  • geometry

    • Box Geometry

      box_geometry

      Box geometry.

      Requires:

      local_transform
      Schema

      dimension

      Vector3

      Default:[1,1,1]

      Width, height and depth of the box.

      offset

      Vector3

      Default:[0,0,0]

      Geometry offset.

    • Capsule Geometry

      capsule_geometry

      Capsule geometry.

      Requires:

      local_transform
      Schema

      axis

      Integer

      Default:1(Y-Axis)

      Alignment axis. 0 for X, 1 for Y, 2 for Z.

      0X-Axis1Y-Axis2Z-Axis

      height

      Float

      Default:1

      Height of the cylindrical part of the capsule.

      offset

      Vector3

      Default:[0,0,0]

      Geometry offset.

      radius

      Float

      Default:0.5

      Radius of the spheres at each end of the capsule.

    • Culling Geometry

      culling_geometry

      Culling geometry. Add this component in addition to another geometry component (e.g. box geometry, sphere geometry, etc.) to enable culling geometry.

      Requires:

      local_transform

      Requires one of:

      box_geometrycylinder_geometryplane_geometrysphere_geometry
      Schema

      isAdditive

      Boolean

      Default:true

      Additive geometry will only display elements (vertices or voxels) inside the geometry. Subtractive will only display elements outside the geometry.

    • Cylinder Geometry

      cylinder_geometry

      Cylinder geometry.

      Requires:

      local_transform
      Schema

      axis

      Integer

      Default:1(Y-Axis)

      Alignment axis. 0 for X, 1 for Y, 2 for Z.

      0X-Axis1Y-Axis2Z-Axis

      height

      Float

      Default:1

      Height of the cylinder.

      offset

      Vector3

      Default:[0,0,0]

      Geometry offset.

      radius

      Float

      Default:0.5

      Radius of the cylinder.

    • Plane Geometry

      plane_geometry

      Plane geometry.

      Requires:

      local_transform
      Schema

      distance

      Float

      Default:0

      Distance from the origin in the plane's normal direction.

      normal

      Vector3

      Default:[0,1,0]

      Normal of the plane.

    • Sphere Geometry

      sphere_geometry

      Sphere geometry.

      Requires:

      local_transform
      Schema

      offset

      Vector3

      Default:[0,0,0]

      Geometry offset.

      radius

      Float

      Default:0.5

      Radius of the sphere.

  • animation

    • Animation Controller

      animation_controller

      Animation controller with reference to an animation graph and an animation set. Enables skeletal animation on its skinned mesh descendents whose skeleton is compatible with the animations in the animation set.

      Schema

      animationGraphRef

      Asset UUID

      UUID of the referenced animation graph.

      animationSetRef

      Asset UUID

      UUID of the referenced animation set.

      dataJSON

      JSON

      Input values as described in the referenced animation graph in their original JSON format.

      rootBoneEntityRef

      Entity Reference

      Reference to the entity with the bone component that corresponds the root bone of the skeleton.

      {linkage,originalEUID,}

      rootMotionEnabled

      Boolean

      Default:false

      Whether or not root motion is enabled.

    • Animation Sequence Controller

      animation_sequence_controller

      Animation sequence controller with reference to an animation sequence and assigned entities.

      Schema

      animationSequenceRef

      Asset UUID

      A reference to an animation sequence.

      entities

      Track to entity map. Key is track uuid, value is the entity to assign to it.

      loop

      Boolean

      Default:false

      Whether or not the animation loops when it reaches the end of the sequence.

      playbackSpeed

      Float

      Default:1

      The speed at which to play the animation sequence. The sequence will go in reverse if set to a value lower than 0.

      startOffset

      Float

      Default:0

      The normalized offset at which to start the playback.

      stopOffset

      Float

      Default:1

      The normalized offset at which to stop the playback (or loop back to start offset).

    • Bone

      bone

      Links entity to bone in skeleton.

      Requires:

      local_transform
      Schema

      boneIndex

      Unsigned Integer

      Index of bone in skeleton.

    • Morph Targets

      morph_targets

      Contains weights assigned to morph targets of the mesh referred to by the entity's mesh_ref.

      Requires:

      local_transform
      Schema

      weights

      Weights assigned to morph targets of the submesh.

    • Skeleton Reference

      skeleton_ref

      Reference to a skeleton.

      Requires:

      local_transform

      Requires one of:

      mesh_refbone
      Schema

      value

      Asset UUID

      UUID of the referenced skeleton.

  • editor

    • Label

      label

      Display a label in the 3d view.

      Requires:

      local_transform
      Schema

      camera

      Default:[0,0,0,0,0,0,1]

      Camera distance from the label.

      description

      String

      Description of the label.

      speed

      Float

      Default:15

      Travel speed in units per second.

      title

      String

      Title of the label.

    • Measure

      measure

      Display a measure in the 3d view.

      Requires:

      local_transform
      Schema

      color

      Vector3

      Default:[1,1,1]

      Color of the measure

      type

      Unsigned Integer

      Default:0(Linear)

      Define the type of the measure.

      0Linear1Angle2Area3Volume

    • Spline

      spline

      Display a spline in the 3d view.

      Requires:

      local_transform
      Schema

      color

      Vector3

      Default:[1,1,1]

      Color of the curve.

      tension

      Float

      Default:0.5

      When type is catmullrom, defines catmullrom's tension.

      type

      Unsigned Integer

      Default:0(Centripetal)

      Define the type of the curve.

      0Centripetal1Chordal 2Catmullrom

  • physic

    • Character Controller

      character_controller

      Character controller used for movement constrained by collisions without having to deal with a rigid body. A character controller is kinematic, and so is not affected by forces. It uses its own tweaked collision algorithm to give a good feeling while controlling the character.

      Requires:

      local_transformphysics_material

      Requires one of:

      box_geometrycapsule_geometry
      Schema

      skinWidth

      Float

      Default:0

      The character's collision skin width.

      slopeLimit

      Float

      Default:45

      Slope limit in degrees. A slope steeper than the slopeLimit will not be walkable by the controller.

      stepOffset

      Float

      Default:0

      Step offset. If the height of a step is greater than stepOffset, the controller cannot climb automatically and gets stuck.

    • Collision Geometry Reference

      collision_geometry_ref

      Reference to a collision geometry.

      Requires:

      local_transformphysics_material
      Schema

      collisionGeometryRef

      Asset UUID

      UUID of the referenced collision geometry.

    • Constraint

      constraint

      A physics constraint that can be configured along 6 degrees of freedom. In its default state it behaves as a fixed constraint - that is, it rigidly fixes the constraint frames of its two entities. However, individual degrees of freedom may be unlocked to permit any combination of rotation around the x-, y- and z- axes, and translation along these axes.

      Requires:

      joint
      Schema

      motionLimitSpringDamping

      Vector3

      Default:[0,0,0]

      If greater than zero, this is the damping of the limit spring.

      motionLimitSpringStiffness

      Vector3

      Default:[0,0,0]

      If greater than zero, the limit is soft, i.e. a spring pulls the joint back to the limit.

      motionLowerLimit

      Vector3

      Default:[0,0,0]

      The lower distance of the limit.

      motionUpperLimit

      Vector3

      Default:[0,0,0]

      The upper distance of the limit.

      swingLimitAngle

      Vector2

      Default:[0,0]

      The limit angle from the Y-axis and the Z-axis of the constraint frame. The cone limit is used if either or both swing axes are limited. The extents are symmetrical and measured in the frame of the parent. If only one swing degree of freedom is limited, the corresponding value from the cone limit defines the limit range. An angle of 0° will not restrict the rotation around the axis. The maximum value for each angle is 180°.

      swingSpringDamping

      Float

      Default:0

      If greater than zero, this is the damping of the limit spring.

      swingSpringStiffness

      Float

      Default:0

      If greater than zero, the limit is soft, i.e. a spring pulls the joint back to the limit.

      twistLimitAngle

      Vector2

      Default:[0,0]

      The twist limit controls the range of motion around the twist axis. The limit angle range is (-360, 360).

      twistSpringDamping

      Float

      Default:0

      If greater than zero, this is the damping of the limit spring.

      twistSpringStiffness

      Float

      Default:0

      If greater than zero, the limit is soft, i.e. a spring pulls the joint back to the limit.

      unlockedMotion

      Unsigned Integer

      Default:0

      Unlock motion along/around the specified axis.

      1Along X2Along Y4Along Z8Around X16Around Y32Around Z

    • Constraint Actuator

      constraint_actuator

      Requires:

      constraint
      Schema

      angularDamping

      Vector3

      Default:[0,0,0]

      If greater than zero, this is the damping of the limit spring.

      angularForceLimit

      Vector3

      Default:[-1,-1,-1]

      The maximum impulse or force that can be exerted by the drive. -1 for no limit.

      angularStiffness

      Vector3

      Default:[0,0,0]

      If greater than zero, the limit is soft, i.e. a spring pulls the joint back to the limit.

      angularVelocity

      Vector3

      Default:[0,0,0]

      The goal velocity for angular drive.

      goalOrientation

      Quaternion

      Default:[0,0,0,1]

      The goal orientation for angular drive.

      goalPosition

      Vector3

      Default:[0,0,0]

      The goal position for linear drive.

      linearDamping

      Vector3

      Default:[0,0,0]

      If greater than zero, this is the damping of the limit spring.

      linearForceLimit

      Vector3

      Default:[-1,-1,-1]

      The maximum impulse or force that can be exerted by the drive. -1 for no limit.

      linearStiffness

      Vector3

      Default:[0,0,0]

      If greater than zero, the limit is soft, i.e. a spring pulls the joint back to the limit.

      linearVelocity

      Vector3

      Default:[0,0,0]

      The goal velocity for linear drive.

      type

      Integer

      Default:1(ACCELERATION)

      The drive type

      0FORCE1ACCELERATION

    • Joint

      joint

      Base component of all the other joint components (revolute_joint, etc.). By itself it will lock the orientations and distances of the constrainer and constrainee.

      Schema

      breakForce

      Float

      Default:10

      The force that needs to be applied for this joint to break.

      breakTorque

      Float

      Default:10

      The torque that needs to be applied for this joint to break.

      constrainee

      Entity Reference

      An entity that is a rigid body. The constrainee is dependent on the constrainer entity.

      {linkage,originalEUID,}

      constrainer

      Entity Reference

      An entity that is a rigid or static body, or simply null. If null, the constrainee is dependent upon world origin.

      {linkage,originalEUID,}

      enableCollision

      Boolean

      Default:false

      Whether to enable collision between constrainer and constrainee.

    • Physics Material

      physics_material

      Physics material which represents a set of physical surface properties.

      Requires one of:

      box_geometrycapsule_geometrycylinder_geometryplane_geometrysphere_geometrycollision_geometry_ref
      Schema

      contactVelocity

      Vector3

      Default:[0,0,0]

      The velocity applied to the contact between this physics body and another body. Only applies if modifyContact is true.

      dynamicFriction

      Float

      Default:0.5

      The friction coefficient applied between this surface and another surface if they are moving relative to each other. Usually a value from 0 to 1. A value of zero feels like ice, a value of 1 will make it very hard to get the object moving. If set to greater than staticFriction, the effective value of staticFriction will be increased to match. Resulting dynamic friction of a physics body colliding with another is determined by the average of both bodies' dynamic friction coefficient.

      isTrigger

      Boolean

      Default:false

      Whether to consider the geometry associated to this physics material as a trigger or not.

      modifyContact

      Boolean

      Default:false

      Whether to modify the contact when this physics body collides with another body.

      restitution

      Float

      Default:0

      Restitution coefficient, or bounciness of surface. A coefficient of 0 indicates as little bounce as possible, higher values up to 1.0 result in more bounce. Should be in the range [0,1]. Resulting bounciness of a physics body colliding with another is determined by the average of both bodies' restitution.

      staticFriction

      Float

      Default:0.5

      The friction coefficient applied between this surface and another surface if they are not moving lateral to each other. Usually a value from 0 to 1. A value of zero feels like ice, a value of 1 will make it very hard to get the object moving. Resulting static friction of a physics body colliding with another is determined by the average of both bodies' static friction coefficient.

    • Rigid Body

      rigid_body

      Rigid body parameters.

      Requires:

      local_transformphysics_material
      Schema

      angularDamping

      Float

      Default:0.05

      Angular damping coefficient. Used to slow down the rigid body's angular velocity, i.e. how much it rotates. Zero represents no damping. Must be non-negative.

      centerOfMass

      Vector3

      Default:[0,0,0]

      Center of mass. Relative to the entity's transform.

      collisionDetection

      Unsigned Byte

      Default:0(Discrete)

      The type of collision detection to use for this rigid body.

      0Discrete1LinearContinuous2AngularContinuous3Continuous

      isKinematic

      Boolean

      Default:false

      Specifies if rigid body is kinematic. Kinematic rigid bodies are not affected by forces such as gravity.

      linearDamping

      Float

      Default:0

      Linear damping coefficient. Used to slow down the rigid body's linear velocity. Zero represents no damping. Must be non-negative.

      lockedAxis

      Unsigned Byte

      Default:0

      Lock motion along/around the specified axis.

      1Linear X2Linear Y4Linear Z8Angular X16Angular Y32Angular Z

      mass

      Float

      Default:1

      Mass of the rigid body. A value of 0 is interpreted as infinite mass.

      maxAngularVelocity

      Float

      Default:100

      The maximum angular velocity permitted for this body in rad/s. Must be non-negative.

      maxLinearVelocity

      Float

      Default:10000000000000000

      The maximum linear velocity permitted for this body in m/s. Must be non-negative.

      useGravity

      Boolean

      Default:true

      Controls whether rigid body is affected by gravity.

    • Vehicle Controller

      vehicle_controller

      Vehicle Controller parameters.

      Requires:

      local_transform
      Schema

      chassis

      Entity Reference

      The chassis.

      {linkage,originalEUID,}

      frontLeftWheel

      Entity Reference

      The front left wheel.

      {linkage,originalEUID,}

      frontRightWheel

      Entity Reference

      The front right wheel.

      {linkage,originalEUID,}

      rearLeftWheel

      Entity Reference

      The rear left wheel.

      {linkage,originalEUID,}

      rearRightWheel

      Entity Reference

      The rear right wheel.

      {linkage,originalEUID,}