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A physical force is a spherical object with a force that is applied to its center and attenuates as follows:
|distance||Distance between the sphere center and the object.|
|radius||Radius of the sphere in which the force is applied.|
|attenuation||Force attenuation factor.|
All physical bodies and particles that are within the radius of the force are pulled up to or away from the center of the physical force node. Also the bodies and particles can be rotated around the center of the physical force node.
The physical force will affect particles only if their physical mass is nonzero. The physical mass for the particles can be set on the Params tab of the Nodespanel.
- A PhysicalForceclass to edit physical force nodes via UnigineScript
- A set of samples located in the data/samples/physicals folder:
Adding Physical Force
To add a physical force to the scene via UnigineEditor:
- Run UnigineEditor.
- On the Menu bar, click Create -> Effect -> Physical Force.
- Click somewhere in the world to place the physical force.
The new physical force node will be added to UnigineEditor and you will be able to edit it via the Nodes panel. By default, the radius of the node is 1.
Editing Physical Force
On the Force tab of the Nodespanel, you can adjust the following parameters of the physical force:
|Physical||Physical mask. The physical mask of the physical force must match the physical mask of the physical object. Otherwise, the physical force won't affect the object.|
|Radius||Radius for applying the physical force in units.|
|Atten||Attenuation factor indicating how much the physical force decreases when the objects move away from the force center.|
|Attractor||Attraction force applied to objects in the physical force radius. If a positive value is provided, objects will be pulled away from the force point. If a negative value is provided, objects will be pulled up to the force point.|
|Rotator||Rotation force that is applied to objects in the physical force radius. If a positive value is provided, objects will be rotated clockwise. If a negative value is provided, objects will be rotated counter-clockwise.|
Last update: 2017-07-03
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