To create a fan control object: Choose Get > Force > Fan from the Simulate toolbar, Get > Primitive > Control Object > Fan from the other toolbars, or Create > Force > Fan from the Hair toolbar.
To redisplay: Select the fan object and press Enter.
A Fan force simulates the effect of a “local” wind blowing via a cylinder on other objects. The wind’s direction follows with cylinder’s axis, while wind’s intensity falls off from the center to the cylinder’s border, moving from bottom to top.
Fan has no effect on Soft body simulations.
For more information on forces in general, see Forces for Simulations.
To use this force in an ICE tree, see Creating and Applying Forces to ICE Simulations [ ICE ].
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Name |
The name of the force. |
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Mute |
Toggles on/off the force effect. |
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Velocity |
Speed of the fan’s force. |
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Flow Viscosity |
The amount of resistance the simulated objects have to the fan’s force. A fan force with low viscosity values makes the simulated objects resist motion more strongly, thereby slowing down their flow. |
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Use Size |
Uses size of the simulated objects in the fan force’s calculations. |
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Radius |
Radius of the fan’s cylinder. |
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Drop Length |
Length of the fan’s cylinder. |
Decay
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Radial |
Falloff (decay) along the fan’s Radius starting from its center and moving to its outer edges. • A value of 0 is no decay so a simulated object would have the same amount of influence on it throughout the radius of the cylinder. • A value of 1 is a linear decay so the fan would have full influence at its center and less influence as the simulated object gets closer to the radius edge where its influence is 0. • A value of 2 is the same as 1 except that it produces a quadratic, smooth falloff. |
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Axial |
Falloff along the fan’s cylinder axis starting from the point of its origin and moving to its end (Drop Length). • A value of 0 is no decay so a simulated object would have the same amount of influence on it throughout the length of the cylinder. • A value of 1 is a linear decay so the fan would have full influence at its origin and less influence as the simulated object gets closer to the end of the cylinder where its influence is 0. • A value of 2 is the same as 1 except that it produces a quadratic, smooth falloff. |
Autodesk Softimage v.7.5