The class stands for the bone or frame in the character's skeleton. More...

#include <Bone.h>

Public Types
enum	LineType { NOT_INTERP =0, LINEAR, HERMITE, BEZIER }
	Linear Type (0:don't interpret;1:linear;2:hermite;3:bezier) More...

enum	MotionType { KGRT =0, KGSC =1, KGTR =2, MAX_MOTION =3 }
	LiXizhi: this is the order defined by X file template. More...

Public Member Functions
void	Read (TypePointer inP, int inSize)

int	GetGeosetID ()

int	GetGeosetAnimID ()

void	SetGeosetAlpha (float alpha)

float	GetGeosetAlpha ()

char *	GetBoneName ()

int	GetObjectID ()

int	GetParentID ()

D3DXMATRIX *	GetFinalTransformMatrix ()

D3DXMATRIX *	GetCombinedTransformMatrix ()

D3DXMATRIX *	CalcTransformMatrix (D3DXVECTOR3 center, const AnimInfo &animInfo, const D3DXMATRIX parentMatrix)

D3DXMATRIX *	TransformMatrixMultiply (const D3DXMATRIX *matrix)

Public Attributes
int	objectID

int	parentID
	the object ID, which is the same as the its index in the skeleton list

int	nextID
	the object ID of its parent bone

D3DXMATRIX	localMatrix
	the object ID of its next bone in the skeleton.-1 if it is the last bone

D3DXMATRIX	combinedMatrix
	the localMatrix in the bone pose. localMatrix is used if no animation or translation keyframes is available for this bone

D3DXMATRIX	offsetMatrix
	combinedMatrix will transform the vertices from the local bone space to its character space.

D3DXMATRIX	finalMatrix
	offsetMatrix will transform original mesh vertice from their bone pose to local bone space.

Friends
class	CMDXModel
	by default it is 1.0

class	CSkeleton

Detailed Description

The class stands for the bone or frame in the character's skeleton.

Animation data for the associated bone is also managed by this class. It supports motion blending between bone poses. Bone matrices are updated from parent to children, through the CalcTransformMatrix() function.

Fixes0.0:animation warping is added.modify Keyframe search now uses binary search, instead of linear search However, there are still some unfixed problems. Meshes can hidded and unhidden using alpha frames. We should prohibit motion warping between hidden frame and unhidden frames. Yet all bones are calculated regardless of whether they are visible or not in current frame. Fixes0.1: Now scaling animation is enabled. However, I will only support linear transformation, even if hermite or bezier may be preferred. I may add support for the latter in the future. Fixes0.2: Currently, animation uses offset matrix instead of pivot point. In the original pivot point approach, each bone will store a pivot point in the character mesh space. and the animation of the vertices bound to a certain bone is calculated by applying RST(rotation|Scaling|translation ) around its pivot point in the character space. In the current approach, an offset matrix is used instead of the pivot points offsetmatrix will first transform vertices to the local bone space, then RST is applied from child bones to parent bones around the (0,0,0) point. This second approach is formal, and agrees with many 3D animation format such as X-file.