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
- Can be useful for collision computations or inverse-kinematics (IK) engines.
- Precomputation and inclusion of bounding box information can speed up the initialization of large detailed models, with a corresponding cost of increased file size.
- X3D Architecture, 10.2.2 Bounding boxes
- X3D Architecture, 10.3.1 X3DBoundedObject
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
- Precomputation and inclusion of bounding box information can speed up the initialization of large detailed models, with a corresponding cost of increased file size.
- X3D Architecture, 10.2.2 Bounding boxes
- X3D Architecture, 10.3.1 X3DBoundedObject
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.