The Space Warp behavior lets space warps, such as wind or gravity, influence a crowd simulation. You can use it to apply space warps in the Forces and Particles & Dynamics categories to crowd members.
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Create panel > 
(Helpers) > Object Type rollout > Crowd > Setup rollout > Behaviors group > Click the New button. > Select Behavior Type dialog > Space Warp Behavior
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Select a Crowd object. >
Modify panel > Setup rollout > Behaviors group > Click the New button. > Select Behavior Type dialog > Space Warp Behavior
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Select a Crowd object. > Modify panel > Setup rollout > Behaviors group > Choose Space Warp from the drop-down list.
In particular, use the Space Warp behavior to tie delegates to a Vector Field space warp, so that they avoid penetrating an irregularly shaped object while following its contours.
Interface
- None (label)
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Click this button, then select a space warp object.
- Color Swatch
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shows the color used to draw the Space Warp force vector during the solution. Click the box to choose a different color.
- Display Force
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When on, force exerted on the delegate(s) by the Space Warp behavior is drawn in the viewports as a vector during the simulation solution.