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# Ogre::VertexAnimationTrack Class Reference

Specialised AnimationTrack for dealing with changing vertex position information. More...

`#include <OgreAnimationTrack.h>`

Inheritance diagram for Ogre::VertexAnimationTrack:
[legend]

List of all members.

## Public Types
enum | TargetMode { TM_SOFTWARE, TM_HARDWARE }
| The target animation mode. More...
## Public Member Functions
| VertexAnimationTrack (Animation *parent, unsigned short handle, VertexAnimationType animType)
| Constructor.
| VertexAnimationTrack (Animation *parent, unsigned short handle, VertexAnimationType animType, VertexData *targetData, TargetMode target=TM_SOFTWARE)
| Constructor, associates with target VertexData and temp buffer (for software).
VertexAnimationType | getAnimationType (void) const
| Get the type of vertex animation we're performing.
virtual VertexMorphKeyFrame * | createVertexMorphKeyFrame (Real timePos)
| Creates a new morph KeyFrame and adds it to this animation at the given time index.
virtual VertexPoseKeyFrame * | createVertexPoseKeyFrame (Real timePos)
| Creates the single pose KeyFrame and adds it to this animation.
virtual void | getInterpolatedKeyFrame (const TimeIndex &timeIndex, KeyFrame *kf) const
| This method in fact does nothing, since interpolation is not performed inside the keyframes for this type of track.
virtual void | apply (const TimeIndex &timeIndex, Real weight=1.0, Real scale=1.0f)
  | Applies an animation track to the designated target. Parameters:
  | timeIndex | The time position in the animation to apply.
  | weight | The influence to give to this track, 1.0 for full influence, less to blend with other animations.
  | scale | The scale to apply to translations and scalings, useful for adapting an animation to a different size target.
virtual void | applyToVertexData (VertexData *data, const TimeIndex &timeIndex, Real weight=1.0, const PoseList *poseList=0)
| As the 'apply' method but applies to specified VertexData instead of associated data.
VertexMorphKeyFrame * | getVertexMorphKeyFrame (unsigned short index) const
| Returns the morph KeyFrame at the specified index.
VertexPoseKeyFrame * | getVertexPoseKeyFrame (unsigned short index) const
| Returns the pose KeyFrame at the specified index.
void | setAssociatedVertexData (VertexData *data)
| Sets the associated VertexData which this track will update.
VertexData * | getAssociatedVertexData (void) const
| Gets the associated VertexData which this track will update.
void | setTargetMode (TargetMode m)
| Set the target mode.
TargetMode | getTargetMode (void) const
| Get the target mode.
virtual bool | hasNonZeroKeyFrames (void) const
| Method to determine if this track has any KeyFrames which are doing anything useful - can be used to determine if this track can be optimised out.
virtual void | optimise (void)
| Optimise the current track by removing any duplicate keyframes.
VertexAnimationTrack * | _clone (Animation *newParent) const
| Clone this track (internal use only).
unsigned short | getHandle (void) const
| Get the handle associated with this track.
virtual unsigned short | getNumKeyFrames (void) const
| Returns the number of keyframes in this animation.
virtual KeyFrame * | getKeyFrame (unsigned short index) const
| Returns the KeyFrame at the specified index.
virtual Real | getKeyFramesAtTime (const TimeIndex &timeIndex, KeyFrame **keyFrame1, KeyFrame **keyFrame2, unsigned short *firstKeyIndex=0) const
| Gets the 2 KeyFrame objects which are active at the time given, and the blend value between them.
virtual KeyFrame * | createKeyFrame (Real timePos)
| Creates a new KeyFrame and adds it to this animation at the given time index.
virtual void | removeKeyFrame (unsigned short index)
| Removes a KeyFrame by it's index.
virtual void | removeAllKeyFrames (void)
| Removes all the KeyFrames from this track.
virtual void | _keyFrameDataChanged (void) const
| Internal method used to tell the track that keyframe data has been changed, which may cause it to rebuild some internal data.
virtual void | _collectKeyFrameTimes (std::vector< Real > &keyFrameTimes)
| Internal method to collect keyframe times, in unique, ordered format.
virtual void | _buildKeyFrameIndexMap (const std::vector< Real > &keyFrameTimes)
| Internal method to build keyframe time index map to translate global lower bound index to local lower bound index.
## Protected Types
typedef std::vector < KeyFrame * > | KeyFrameList
typedef std::vector < ushort > | KeyFrameIndexMap
| Map used to translate global keyframe time lower bound index to local lower bound index.
## Protected Member Functions
KeyFrame * | createKeyFrameImpl (Real time)
| Create a keyframe implementation - must be overridden.
void | applyPoseToVertexData (const Pose *pose, VertexData *data, Real influence)
| Utility method for applying pose animation.
virtual void | populateClone (AnimationTrack *clone) const
| Internal method for clone implementation.
## Protected Attributes
VertexAnimationType | mAnimationType
| Animation type.
VertexData * | mTargetVertexData
| Target to animate.
TargetMode | mTargetMode
| Mode to apply.
KeyFrameList | mKeyFrames
Animation * | mParent
unsigned short | mHandle
KeyFrameIndexMap | mKeyFrameIndexMap

## Detailed Description

Specialised AnimationTrack for dealing with changing vertex position information.

See also:
  VertexAnimationType

Definition at line 452 of file OgreAnimationTrack.h.

## Member Typedef Documentation

typedef std::vector<KeyFrame*> Ogre::AnimationTrack::KeyFrameList`[protected, inherited]`

Definition at line 216 of file OgreAnimationTrack.h.

typedef std::vector<ushort> Ogre::AnimationTrack::KeyFrameIndexMap`[protected, inherited]`

Map used to translate global keyframe time lower bound index to local lower bound index.

Definition at line 222 of file OgreAnimationTrack.h.

## Member Enumeration Documentation

enum Ogre::VertexAnimationTrack::TargetMode

The target animation mode.

Enumerator:

  TM_SOFTWARE | Interpolate vertex positions in software.
  TM_HARDWARE | Bind keyframe 1 to position, and keyframe 2 to a texture coordinate for interpolation in hardware.

Definition at line 456 of file OgreAnimationTrack.h.

## Constructor & Destructor Documentation

Ogre::VertexAnimationTrack::VertexAnimationTrack | ( | Animation * | parent,
|  | unsigned short | handle,
|  | VertexAnimationType | animType |
| ) |  |  |

Constructor.

Ogre::VertexAnimationTrack::VertexAnimationTrack | ( | Animation * | parent,
|  | unsigned short | handle,
|  | VertexAnimationType | animType,
|  | VertexData * | targetData,
|  | TargetMode | target = `TM_SOFTWARE` |
| ) |  |  |

Constructor, associates with target VertexData and temp buffer (for software).

## Member Function Documentation

VertexAnimationType Ogre::VertexAnimationTrack::getAnimationType | ( | void |  | ) | const

Get the type of vertex animation we're performing.

Definition at line 471 of file OgreAnimationTrack.h.

virtual VertexMorphKeyFrame* Ogre::VertexAnimationTrack::createVertexMorphKeyFrame | ( | Real | timePos | ) | `[virtual]`

Creates a new morph KeyFrame and adds it to this animation at the given time index.

Remarks:
  It is better to create KeyFrames in time order. Creating them out of order can result in expensive reordering processing. Note that a KeyFrame at time index 0.0 is always created for you, so you don't need to create this one, just access it using getKeyFrame(0);

Parameters:

  | timePos | The time from which this KeyFrame will apply.

virtual VertexPoseKeyFrame* Ogre::VertexAnimationTrack::createVertexPoseKeyFrame | ( | Real | timePos | ) | `[virtual]`

Creates the single pose KeyFrame and adds it to this animation.

virtual void Ogre::VertexAnimationTrack::getInterpolatedKeyFrame | ( | const TimeIndex & | timeIndex,
|  | KeyFrame * | kf |
| ) |  |  | const`[virtual]`

This method in fact does nothing, since interpolation is not performed inside the keyframes for this type of track.

Implements Ogre::AnimationTrack.

Definition at line 489 of file OgreAnimationTrack.h.

virtual void Ogre::VertexAnimationTrack::apply | ( | const TimeIndex & | timeIndex,
|  | Real | weight = `1.0`,
|  | Real | scale = `1.0f` |
| ) |  |  | `[virtual]`

Applies an animation track to the designated target.

Parameters:

  | timeIndex | The time position in the animation to apply.
  | weight | The influence to give to this track, 1.0 for full influence, less to blend with other animations.
  | scale | The scale to apply to translations and scalings, useful for adapting an animation to a different size target.

Implements Ogre::AnimationTrack.

virtual void Ogre::VertexAnimationTrack::applyToVertexData | ( | VertexData * | data,
|  | const TimeIndex & | timeIndex,
|  | Real | weight = `1.0`,
|  | const PoseList * | poseList = `0` |
| ) |  |  | `[virtual]`

As the 'apply' method but applies to specified VertexData instead of associated data.

VertexMorphKeyFrame* Ogre::VertexAnimationTrack::getVertexMorphKeyFrame | ( | unsigned short | index | ) | const

Returns the morph KeyFrame at the specified index.

VertexPoseKeyFrame* Ogre::VertexAnimationTrack::getVertexPoseKeyFrame | ( | unsigned short | index | ) | const

Returns the pose KeyFrame at the specified index.

void Ogre::VertexAnimationTrack::setAssociatedVertexData | ( | VertexData * | data | ) |

Sets the associated VertexData which this track will update.

Definition at line 508 of file OgreAnimationTrack.h.

VertexData* Ogre::VertexAnimationTrack::getAssociatedVertexData | ( | void |  | ) | const

Gets the associated VertexData which this track will update.

Definition at line 510 of file OgreAnimationTrack.h.

void Ogre::VertexAnimationTrack::setTargetMode | ( | TargetMode | m | ) |

Set the target mode.

Definition at line 513 of file OgreAnimationTrack.h.

TargetMode Ogre::VertexAnimationTrack::getTargetMode | ( | void |  | ) | const

Get the target mode.

Definition at line 515 of file OgreAnimationTrack.h.

virtual bool Ogre::VertexAnimationTrack::hasNonZeroKeyFrames | ( | void |  | ) | const`[virtual]`

Method to determine if this track has any KeyFrames which are doing anything useful - can be used to determine if this track can be optimised out.

Reimplemented from Ogre::AnimationTrack.

virtual void Ogre::VertexAnimationTrack::optimise | ( | void |  | ) | `[virtual]`

Optimise the current track by removing any duplicate keyframes.

Reimplemented from Ogre::AnimationTrack.

VertexAnimationTrack* Ogre::VertexAnimationTrack::_clone | ( | Animation * | newParent | ) | const

Clone this track (internal use only).

KeyFrame* Ogre::VertexAnimationTrack::createKeyFrameImpl | ( | Real | time | ) | `[protected, virtual]`

Create a keyframe implementation - must be overridden.

Implements Ogre::AnimationTrack.

void Ogre::VertexAnimationTrack::applyPoseToVertexData | ( | const Pose * | pose,
|  | VertexData * | data,
|  | Real | influence |
| ) |  |  | `[protected]`

Utility method for applying pose animation.

unsigned short Ogre::AnimationTrack::getHandle | ( | void |  | ) | const`[inherited]`

Get the handle associated with this track.

Definition at line 125 of file OgreAnimationTrack.h.

virtual unsigned short Ogre::AnimationTrack::getNumKeyFrames | ( | void |  | ) | const`[virtual, inherited]`

Returns the number of keyframes in this animation.

virtual KeyFrame* Ogre::AnimationTrack::getKeyFrame | ( | unsigned short | index | ) | const`[virtual, inherited]`

Returns the KeyFrame at the specified index.

virtual Real Ogre::AnimationTrack::getKeyFramesAtTime | ( | const TimeIndex & | timeIndex,
|  | KeyFrame ** | keyFrame1,
|  | KeyFrame ** | keyFrame2,
|  | unsigned short * | firstKeyIndex = `0` |
| ) |  |  | const`[virtual, inherited]`

Gets the 2 KeyFrame objects which are active at the time given, and the blend value between them.

Remarks:
  At any point in time in an animation, there are either 1 or 2 keyframes which are 'active', 1 if the time index is exactly on a keyframe, 2 at all other times i.e. the keyframe before and the keyframe after.

  This method returns those keyframes given a time index, and also returns a parametric value indicating the value of 't' representing where the time index falls between them. E.g. if it returns 0, the time index is exactly on keyFrame1, if it returns 0.5 it is half way between keyFrame1 and keyFrame2 etc.

Parameters:

  | timeIndex | The time index.
  | keyFrame1 | Pointer to a KeyFrame pointer which will receive the pointer to the keyframe just before or at this time index.
  | keyFrame2 | Pointer to a KeyFrame pointer which will receive the pointer to the keyframe just after this time index.
  | firstKeyIndex | Pointer to an unsigned short which, if supplied, will receive the index of the 'from' keyframe incase the caller needs it.

Returns:
  Parametric value indicating how far along the gap between the 2 keyframes the timeIndex value is, e.g. 0.0 for exactly at 1, 0.25 for a quarter etc. By definition the range of this value is: 0.0 <= returnValue < 1.0 .

virtual KeyFrame* Ogre::AnimationTrack::createKeyFrame | ( | Real | timePos | ) | `[virtual, inherited]`

Creates a new KeyFrame and adds it to this animation at the given time index.

Remarks:
  It is better to create KeyFrames in time order. Creating them out of order can result in expensive reordering processing. Note that a KeyFrame at time index 0.0 is always created for you, so you don't need to create this one, just access it using getKeyFrame(0);

Note:
  this method will always create a keyframe even if the track already has a keyframe at the given time position.

Parameters:

  | timePos | The time from which this KeyFrame will apply.

virtual void Ogre::AnimationTrack::removeKeyFrame | ( | unsigned short | index | ) | `[virtual, inherited]`

Removes a KeyFrame by it's index.

virtual void Ogre::AnimationTrack::removeAllKeyFrames | ( | void |  | ) | `[virtual, inherited]`

Removes all the KeyFrames from this track.

virtual void Ogre::AnimationTrack::_keyFrameDataChanged | ( | void |  | ) | const`[virtual, inherited]`

Internal method used to tell the track that keyframe data has been changed, which may cause it to rebuild some internal data.

Reimplemented in Ogre::NodeAnimationTrack.

Definition at line 197 of file OgreAnimationTrack.h.

virtual void Ogre::AnimationTrack::_collectKeyFrameTimes | ( | std::vector< Real > & | keyFrameTimes | ) | `[virtual, inherited]`

Internal method to collect keyframe times, in unique, ordered format.

virtual void Ogre::AnimationTrack::_buildKeyFrameIndexMap | ( | const std::vector< Real > & | keyFrameTimes | ) | `[virtual, inherited]`

Internal method to build keyframe time index map to translate global lower bound index to local lower bound index.

virtual void Ogre::AnimationTrack::populateClone | ( | AnimationTrack * | clone | ) | const`[protected, virtual, inherited]`

Internal method for clone implementation.

## Member Data Documentation

VertexAnimationType Ogre::VertexAnimationTrack::mAnimationType`[protected]`

Animation type.

Definition at line 531 of file OgreAnimationTrack.h.

VertexData* Ogre::VertexAnimationTrack::mTargetVertexData`[protected]`

Target to animate.

Definition at line 533 of file OgreAnimationTrack.h.

TargetMode Ogre::VertexAnimationTrack::mTargetMode`[protected]`

Mode to apply.

Definition at line 535 of file OgreAnimationTrack.h.

KeyFrameList Ogre::AnimationTrack::mKeyFrames`[protected, inherited]`

Definition at line 217 of file OgreAnimationTrack.h.

Animation* Ogre::AnimationTrack::mParent`[protected, inherited]`

Definition at line 218 of file OgreAnimationTrack.h.

unsigned short Ogre::AnimationTrack::mHandle`[protected, inherited]`

Definition at line 219 of file OgreAnimationTrack.h.

KeyFrameIndexMap Ogre::AnimationTrack::mKeyFrameIndexMap`[protected, inherited]`

Definition at line 223 of file OgreAnimationTrack.h.

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

- OgreAnimationTrack.h

Copyright © 2000-2005 by The OGRE Team
This work is licensed under a Creative Commons Attribution-ShareAlike 2.5 License.
Last modified Mon Jun 16 12:49:07 2008