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RtAnimAnimation Struct Reference
[RtAnim]

Collaboration diagram for RtAnimAnimation: Collaboration graph


Data Fields
RtAnimInterpolatorInfo *	interpInfo
RwInt32	numFrames
RwInt32	flags
RwReal	duration
void *	pFrames
void *	customData

Detailed Description

A keyframed animation consists of an array of keyframe structures, along with some flags and a duration.

The keyframes should be presented in the order they are needed to animate forwards through time. That is, the next keyframe at some point in the sequence should correspond to the node whose previous two keyframes are next to expire as an interpolation pair.

Put another way, the correct ordering can be achieved by sorting an unordered keyframe array using the following primary and secondary sort keys:-

time of previous keyframe for node
node index

An example is shown in the following diagram, where each vertical bar indicates a keyframe point in time. The position of the keyframe within the animation sequence is shown by an index to the left of each bar.


                t=0                               t=duration
  node 0    kf0..|  kf3.......|  kf8....|  kf10....|
  node 1    kf1..|  kf4...|  kf6........|  kf11....|
  node 2    kf2..|  kf5.....|  kf7..|  kf9.........|

Each node MUST have an initial keyframe at time = 0.0, and a terminal keyframe at time = duration of the animation.

Pointers link all of the keyframes for a particular node backwards through time in a list.