To have delegate heading velocity considered for motion synthesis, turn on Use Heading Velocity, choose Range or Unique, and then make the appropriate settings.
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Select a Crowd helper. >
Modify panel > Global Clip Controllers rollout > New > Choose GlobalClip object. > Select object in list. > Edit > Synthesis dialog > State panel > New State > Edit Properties > Clip State dialog > Heading Velocity Panel
Heading velocity is determined by the rate of change in degrees per frame of the angle of the delegate about the world Z-axis. In other words, heading velocity measures how fast the delegate is changing its heading.
Interface
- Use Heading Velocity
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Turn on to have the motion synthesis engine consider heading velocity in determining whether to activate the state.
Range group
When you choose Range, the motion synthesis engine activates the clip when the delegate's heading velocity falls inside the specified range.
- Min/Avg/Max display
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After you synthesize the Master Motion Clips, displays delegates' minimum, average, and maximum heading velocity.
- Min
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Set a minimum heading rate value for the range.
- Max
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Set a maximum heading rate value for the range.
Unique group
When you choose Unique, the motion synthesis engine activates the clip when the delegate's heading rate matches a specific value, optionally with a rising, falling, or constant value before or after the specified value.
- Value
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Set a unique heading rate value.
- In and Out groups
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These radio buttons let you specify the behavior of the parameter before and after the unique value is met.
- Anything Heading velocity before or after the target value is not relevant.
- Decreasing Heading velocity decreases before or after it reaches the target value.
- Constant Heading velocity before or after the target value is constant.
- Increasing Heading velocity increases before or after it reaches the target value.
Scale Playback Speed group
These settings let you scale the rate at which the animation is played, depending upon the heading velocity of the delegate. By default, when Scale Animation is off, the object animation will always play at its normal rate. If you turn it on, you can then set a Base Heading Rate, at which the animation should play at its normal rate, plus a percentage to specify how much the animation rate is modified by the actual delegate heading velocity.
- Scale Animation
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Scales the clip's animation based on heading velocity.
- Percentage
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Specify how much to alter the playback speed based upon the difference between the delegate's heading velocity and the Base Heading Rate setting.
The formula used is this:
Animation Speed change % = (current speed/Base Heading Rate – 1) x Percentage %
For example, if a delegate's heading velocity is 50 percent above its base heading rate, and the Scale Percentage value is 50, then the playback speed is scaled up by 25 percent.
- Base Heading Rate
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Specifies the delegate heading velocity at which the animation should be played back at its normal rate.