CrystalSpace

Public API Reference

CS::Geometry Namespace Reference

Geometry and mesh tools related classes. More...

Classes

class  Box
 A box. More...
class  Capsule
 A capsule. More...
class  Cone
 A Cone. More...
class  csEarClipper
 structure for clipping polygon ears More...
class  DensityTextureMapper
 Density based texture mapper. More...
class  GeneralMeshBuilder
 Tools related to creating genmesh instances and factories. More...
struct  iObjectDescriptor
 If you implement this interface then you can give that to the KDtree. More...
class  KDTree
 A KD-tree. More...
class  KDTreeChild
 A child in the KD-tree (usually some object). More...
struct  Primitive
 Superclass for all primitives. More...
class  Primitives
 A primitive mesh generator. More...
class  Sphere
 A sphere. More...
class  TableTextureMapper
 Table texture mapper. More...
class  TesselatedBox
 A Tesselated box. More...
class  TesselatedQuad
 A tesselated quad. More...
struct  TextureMapper
 Class for controlling texture mapping on the generated meshes. More...
class  Triangulate3D
 Functions. More...

Typedefs

typedef bool( KDTreeVisitFunc )(KDTree *treenode, void *userdata, uint32 timestamp, uint32 &frustum_mask)
 A callback function for visiting a KD-tree node.

Detailed Description

Geometry and mesh tools related classes.


Typedef Documentation

typedef bool( CS::Geometry::KDTreeVisitFunc)(KDTree *treenode, void *userdata, uint32 timestamp, uint32 &frustum_mask)

A callback function for visiting a KD-tree node.

If this function returns true the traversal will continue. Otherwise Front2Back() will stop.

This function is itself responsible for calling Distribute() on the given treenode to ensure that the objects in this node are properly distributed to the children. If the function doesn't want or need this functionality it doesn't have to do Distribute().

If this function decides to process the given node then it is also responsible for checking the timestamp of every child in this node with the timestamp given to this function. If this timestamp is different the child has not been processed before. This function should then update the timestamp of the child. If this is not done then some objects will be encountered multiple times. In some cases this may not be a problem or even desired.

'frustum_mask' can be modified by this function to reduce the number of plane tests (for frustum culling) that have to occur for children of this node.

Definition at line 88 of file kdtreex.h.


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