Post

CollisionSpace

CollisionSpace

Overview

CollisionSpace holds collection of objects considered together for resolution of inter-object collisions. Contains multiple CollidableShape, CollidableOffset, or CollisionSpace nodes (containerField='collidables').

The CollisionSpace node belongs to the RigidBodyPhysics component and requires at least support level 1, its default container field is children. It is available from X3D version 3.2 or higher.

Hierarchy

1
2
3
+ X3DNode
  + X3DNBodyCollisionSpaceNode (X3DBoundedObject)*
    + CollisionSpace

* Derived from multiple interfaces.

Fields

SFNode [in, out] metadata NULL [X3DMetadataObject]

Information about this node can be contained in a MetadataBoolean, MetadataDouble, MetadataFloat, MetadataInteger, MetadataString or MetadataSet node.

Hint

SFBool [in, out] enabled TRUE

Enables/disables node operation.

SFBool [in, out] useGeometry FALSE

useGeometry indicates whether collision-detection code checks down to level of geometry, or only make approximations using geometry bounds.

Hint

  • Testing against object bounds is usually sufficient.

Warning

  • Using geometry is more accurate but slower.

SFBool [in, out] visible TRUE

Whether or not renderable content within this node is visually displayed.

Hints

  • The visible field has no effect on animation behaviors, event passing or other non-visual characteristics.
  • Content must be visible to be collidable and to be pickable.

SFBool [in, out] bboxDisplay FALSE

Whether to display bounding box for associated geometry, aligned with world coordinates.

Hint

  • The bounding box is displayed regardless of whether contained content is visible.

SFVec3f [ ] bboxSize -1 -1 -1 [0,∞) or −1 −1 −1

Bounding box size is usually omitted, and can easily be calculated automatically by an X3D player at scene-loading time with minimal computational cost. Bounding box size can also be defined as an optional authoring hint that suggests an optimization or constraint.

Hints

SFVec3f [ ] bboxCenter 0 0 0 (-∞,∞)

Bounding box center accompanies bboxSize and provides an optional hint for bounding box position offset from origin of local coordinate system.

Hints

MFNode [in, out] collidables [ ] [X3DNBodyCollisionSpaceNode,X3DNBodyCollidableNode]

Collection of collidable objects as well as nested CollisionSpace collections

Advice

Hint

  • Content must be visible to be collidable and to be pickable.

See Also

This post is licensed under CC BY 4.0 by the author.