Values < 1 mix this animation with the skeleton's current pose (usually the pose resulting from lower tracks). Defaults to 1, which overwrites the skeleton's current pose with this animation.

Typically track 0 is used to completely pose the skeleton, then alpha is used on higher tracks. It doesn't make sense to use alpha on track 0 if the skeleton pose is from the last frame render.

When TrackEntry.Alpha is greater than AlphaAttachmentThreshold, attachment timelines are applied. Defaults to 0, so attachment timelines are always applied.

Seconds for the last frame of this animation. Non-looping animations won't play past this time. Looping animations will loop back to TrackEntry.AnimationStart at this time. Defaults to the animation Animation.Duration.

The time in seconds this animation was last applied. Some timelines use this for one-time triggers. Eg, when this animation is applied, event timelines will fire all events between the AnimationLast time (exclusive) and AnimationTime (inclusive). Defaults to -1 to ensure triggers on frame 0 happen the first time this animation is applied.

Seconds when this animation starts, both initially and after looping. Defaults to 0.

When changing the AnimationStart time, it often makes sense to set TrackEntry.AnimationLast to the same value to prevent timeline keys before the start time from triggering.

Seconds to postpone playing the animation. When this track entry is the current track entry, Delay postpones incrementing the TrackEntry.TrackTime. When this track entry is queued, Delay is the time from the start of the previous animation to when this track entry will become the current track entry (ie when the previous track entry TrackEntry.TrackTime >= this track entry's Delay).

TrackEntry.TimeScale affects the delay.

When using AnimationState.AddAnimation with a delay <= 0, the delay is set using the mix duration from the AnimationStateData. If TrackEntry.mixDuration is set afterward, the delay may need to be adjusted.

When the mix percentage (TrackEntry.MixTime / TrackEntry.MixDuration) is less than the EventThreshold, event timelines are applied while this animation is being mixed out. Defaults to 0, so event timelines are not applied while this animation is being mixed out.

If true, when mixing from the previous animation to this animation, the previous animation is applied as normal instead of being mixed out.

When mixing between animations that key the same property, if a lower track also keys that property then the value will briefly dip toward the lower track value during the mix. This happens because the first animation mixes from 100% to 0% while the second animation mixes from 0% to 100%. Setting HoldPrevious to true applies the first animation at 100% during the mix so the lower track value is overwritten. Such dipping does not occur on the lowest track which keys the property, only when a higher track also keys the property.

Snapping will occur if HoldPrevious is true and this animation does not key all the same properties as the previous animation.

If true, the animation will repeat. If false it will not, instead its last frame is applied if played beyond its duration.

When the mix percentage (TrackEntry.MixTime / TrackEntry.MixDuration) is less than the MixAttachmentThreshold, attachment timelines are applied while this animation is being mixed out. Defaults to 0, so attachment timelines are not applied while this animation is being mixed out.

Controls how properties keyed in the animation are mixed with lower tracks. Defaults to MixBlend.Replace.

Track entries on track 0 ignore this setting and always use MixBlend.First.

The MixBlend can be set for a new track entry only before AnimationState.Apply is first called.

When the mix percentage (TrackEntry.MixTime / TrackEntry.MixDuration) is less than the MixDrawOrderThreshold, draw order timelines are applied while this animation is being mixed out. Defaults to 0, so draw order timelines are not applied while this animation is being mixed out.

Seconds for mixing from the previous animation to this animation. Defaults to the value provided by AnimationStateData AnimationStateData.GetMix based on the animation before this animation (if any).

The MixDuration can be set manually rather than use the value from AnimationStateData.GetMix. In that case, the MixDuration can be set for a new track entry only before AnimationState.Update is first called.

When using AnimationState.AddAnimation with a Delay <= 0, the TrackEntry.Delay is set using the mix duration from the AnimationStateData. If mixDuration is set afterward, the delay may need to be adjusted. For example:

entry.Delay = entry.previous.TrackComplete - entry.MixDuration;

Alternatively, TrackEntry.SetMixDuration can be used to recompute the delay:

entry.SetMixDuration(0.25f, 0);

Seconds from 0 to the TrackEntry.MixDuration when mixing from the previous animation to this animation. May be slightly more than MixDuration when the mix is complete.

Resets the rotation directions for mixing this entry's rotate timelines. This can be useful to avoid bones rotating the long way around when using TrackEntry.alpha and starting animations on other tracks.

Mixing with MixBlend.Replace involves finding a rotation between two others, which has two possible solutions: the short way or the long way around. The two rotations likely change over time, so which direction is the short or long way also changes. If the short way was always chosen, bones would flip to the other side when that direction became the long way. TrackEntry chooses the short way the first time it is applied and remembers that direction.

If true, the animation will be applied in reverse. Events are not fired when an animation is applied in reverse.

If true, mixing rotation between tracks always uses the shortest rotation direction. If the rotation is animated, the shortest rotation direction may change during the mix.

If false, the shortest rotation direction is remembered when the mix starts and the same direction is used for the rest of the mix. Defaults to false.

Multiplier for the delta time when this track entry is updated, causing time for this animation to pass slower or faster. Defaults to 1.

Values < 0 are not supported. To play an animation in reverse, use TrackEntry.Reverse.

TrackEntry.MixTime is not affected by track entry time scale, so TrackEntry.MixDuration may need to be adjusted to match the animation speed.

When using AnimationState.AddAnimation with a Delay <= 0, the TrackEntry.Delay is set using the mix duration from the AnimationStateData, assuming time scale to be 1. If the time scale is not 1, the delay may need to be adjusted.

See AnimationState AnimationState.TimeScale for affecting all animations.

The track time in seconds when this animation will be removed from the track. Defaults to the highest possible float value, meaning the animation will be applied until a new animation is set or the track is cleared. If the track end time is reached, no other animations are queued for playback, and mixing from any previous animations is complete, then the properties keyed by the animation are set to the setup pose and the track is cleared.

It may be desired to use AnimationState.AddEmptyAnimation rather than have the animation abruptly cease being applied.

Current time in seconds this track entry has been the current track entry. The track time determines TrackEntry.AnimationTime. The track time can be set to start the animation at a time other than 0, without affecting looping.