FbxSkin Class Reference

This reference page is linked to from the following overview topics: List of Python Fbx classes.

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Detailed Description

Skin deformer class.

A skin deformer contains clusters (FbxCluster). Each cluster acts on a subset of the geometry's control points, with different weights. For example, a mesh of humanoid shape can have a skin attached, that describes the way the humanoid mesh is deformed by bones. When the bones are animated, the clusters act on the geometry to animate it too.

The corresponding deformer types are FbxDeformer::eSkin.

Definition at line 37 of file fbxskin.h.

#include <fbxskin.h>

Inheritance diagram for FbxSkin:

List of all members.

Public Types
enum	EType { eRigid, eLinear, eDualQuaternion, eBlend }
	Skinning type. More...
Public Member Functions
void	SetDeformAccuracy (double pDeformAccuracy)
	Set deformation accuracy.
double	GetDeformAccuracy () const
	Get deformation accuracy.
bool	SetGeometry (FbxGeometry *pGeometry)
	Set the geometry affected by this skin deformer.
FbxGeometry *	GetGeometry ()
	Get the geometry affected by this skin deformer.
bool	AddCluster (FbxCluster *pCluster)
	Add a cluster.
FbxCluster *	RemoveCluster (FbxCluster *pCluster)
	Remove cluster at given index.
int	GetClusterCount () const
	Get the number of clusters.
FbxCluster *	GetCluster (int pIndex)
	Get cluster at given index.
FbxCluster const *	GetCluster (int pIndex) const
	Get cluster at given index.
EDeformerType	GetDeformerType () const
	Get the type of the deformer.
void	SetSkinningType (EType pType)
	Set the skinning type.
EType	GetSkinningType () const
	Get the skinning type.
virtual FbxObject &	Copy (const FbxObject &pObject)
	Copy an object content into this object.
Protected Member Functions
virtual void	Construct (const FbxSkin *pFrom)
virtual FbxStringList	GetTypeFlags () const
Protected Attributes
double	mDeformAccuracy
EType	mSkinningType
FbxArray< int >	mControlPointIndices
FbxArray< double >	mControlPointBlendWeights
Control Points
A skin has an array of indices to control points and associated blend weights.The indices refer to the control points in the instance of class FbxGeometry. The blend weights are the influence of the different skinning type over the deformation effect of the indexed control points.
void	AddControlPointIndex (int pIndex, double pBlendWeight=0)
	Add an element in both arrays of control point indices and blendWeights.
int	GetControlPointIndicesCount () const
	Get the length of the arrays of control point indices and blend weights.
int *	GetControlPointIndices () const
	Get the array of control point indices.
double *	GetControlPointBlendWeights () const
	Get the array of control point blend weights.
void	SetControlPointIWCount (int pCount)
	Set the array size for the three arrays: the array of control point indices, the array of weights and the array of blend weights.

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Member Enumeration Documentation

enum EType

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Skinning type.

The skinning type decides which method will be used to do the skinning.

• eRigid Type eRigid means rigid skinning, which means only one joint can influence each control point.
• eLinear Type eLinear means the classic linear smooth skinning.
• eDualQuaternion Type eDualQuaternion means the dual quaternion smooth skinning.
• eBlend Type eBlend means to blend classic linear and dual quaternion smooth skinning according to blend weights.

Enumerator:

eRigid	Search for all occurrences
eLinear	Search for all occurrences
eDualQuaternion	Search for all occurrences
eBlend	Search for all occurrences

Definition at line 106 of file fbxskin.h.

    {
        eRigid,
        eLinear,
        eDualQuaternion,
        eBlend
    };

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Member Function Documentation

void SetDeformAccuracy

(

double

pDeformAccuracy

)

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Set deformation accuracy.

Remarks:

Use the Accuracy option to set the accuracy of skin deformations. 100% is full accuracy and 1% is a rough estimation of the envelope deformation.

Parameters:

pDeformAccuracy

value for deformation accuracy.

double GetDeformAccuracy

(

)

const

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Get deformation accuracy.

Returns:

deformation accuracy value.

bool SetGeometry

(

FbxGeometry *

pGeometry

)

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Set the geometry affected by this skin deformer.

Parameters:

pGeometry

Pointer to the geometry object to set.

Returns:

true on success, false otherwise.

FbxGeometry* GetGeometry

(

)

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Get the geometry affected by this skin deformer.

Returns:

a pointer to the geometry if set or NULL.

bool AddCluster

(

FbxCluster *

pCluster

)

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Add a cluster.

Parameters:

pCluster

Pointer to the cluster object to add.

Returns:

true on success, false otherwise.

FbxCluster* RemoveCluster

(

FbxCluster *

pCluster

)

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Remove cluster at given index.

Parameters:

pCluster

Pointer to the cluster to remove from this skin deformer.

Returns:

Pointer to cluster or NULL if pCluster is not owned by this skin deformer.

int GetClusterCount

(

)

const

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Get the number of clusters.

Returns:

Number of clusters that have been added to this object.

FbxCluster* GetCluster

(

int

pIndex

)

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Get cluster at given index.

Parameters:

pIndex

Index of cluster.

Returns:

Pointer to cluster or NULL if index is out of range.

FbxCluster const* GetCluster

(

int

pIndex

)

const

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Get cluster at given index.

Parameters:

pIndex

Index of cluster.

Returns:

Pointer to cluster or NULL if index is out of range.

EDeformerType GetDeformerType

(

)

const [inline, virtual]

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Get the type of the deformer.

Returns:

Deformer type identifier.

Reimplemented from FbxDeformer.

Definition at line 97 of file fbxskin.h.

{return eSkin; };

void SetSkinningType

(

EType

pType

)

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Set the skinning type.

Parameters:

pMode

The skinning type.

EType GetSkinningType

(

)

const

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Get the skinning type.

Returns:

The skinning type.

void AddControlPointIndex	(	int	pIndex,
		double	pBlendWeight = 0
	)

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Add an element in both arrays of control point indices and blendWeights.

Parameters:

pIndex	The index of the control point.
pBlendWeight	The blend weight for this control point. The value should between 0 and 1. Any value that is less than 0 will be set to 0, any value that is greater than 1 will be set to 1. 0 means completely linear skinning, 1 means completely dual quaternion skinning, a value between 0 and 1 means the weighted blending of the above two skinning methods.

int GetControlPointIndicesCount

(

)

const

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Get the length of the arrays of control point indices and blend weights.

Returns:

Length of the arrays of control point indices and blend weights. Returns 0 if no control point indices have been added or the arrays have been reset.

int* GetControlPointIndices

(

)

const

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Get the array of control point indices.

Returns:

Pointer to the array of control point indices. NULL if no control point indices have been added or the array has been reset.

double* GetControlPointBlendWeights

(

)

const

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Get the array of control point blend weights.

Returns:

Pointer to the array of control point blend weights. NULL if no control point indices have been added or the array has been reset.

void SetControlPointIWCount

(

int

pCount

)

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Set the array size for the three arrays: the array of control point indices, the array of weights and the array of blend weights.

Parameters:

pCount

The new count.

virtual FbxObject& Copy

(

const FbxObject &

pObject

)

[virtual]

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Copy an object content into this object.

Parameters:

pObject

The source object to copy data from.

Returns:

Returns the destination object being modified by the source.

Remarks:

This function replace the assignment operator (operator=). It will copy all property values and the name. Connections are NOT copied.

Reimplemented from FbxObject.

virtual void Construct

(

const FbxSkin *

pFrom

)

[protected, virtual]

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virtual FbxStringList GetTypeFlags

(

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const [protected, virtual]

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Reimplemented from FbxDeformer.

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Member Data Documentation

double mDeformAccuracy [protected]

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Definition at line 179 of file fbxskin.h.

EType mSkinningType [protected]

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Definition at line 180 of file fbxskin.h.

FbxArray<int> mControlPointIndices [protected]

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Definition at line 183 of file fbxskin.h.

FbxArray<double> mControlPointBlendWeights [protected]

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Definition at line 184 of file fbxskin.h.

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The documentation for this class was generated from the following file:

• fbxsdk/scene/geometry/fbxskin.h