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SimSimulator::Params Class Reference

Parameters for cloth simulator, as described in [BarWit98]. More...

#include <freecloth/simulator/simSimulator.h>

List of all members.

Public Attributes
Float	_k_stretch
Float	_k_shear
Float	_k_bend_u
Float	_k_bend_v
Float	_k_damp
Float	_k_drag
Float	_b_u
	Stretch constant.
Float	_b_v
	Stretch constant.
Float	_g
	Gravitational acceleration.

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Detailed Description

Parameters for cloth simulator, as described in [BarWit98].

The stretch, shear, and bend parameters control the strength of the associated internal forces. For example, a higher _k_stretch value makes the internal stretch forces stronger, and hence makes the cloth harder to stretch. The bend force can be controlled independently in u and v. Generally, stretch forces should be very, very strong, and bend forces should be very weak.

The damp parameter controls the strength of damping forces. A higher damping value will make the cloth come to rest quicker, while a lower value will allow it to oscillate back and forth before coming to rest.

The b_u and b_v values allow the client to force stretch/compression of the cloth. They're not very useful at present; they should really be spatially varying to be useful.

The g parameter is the constant for acceleration due to gravity, by default 9.81 m/s^2.

Definition at line 131 of file simSimulator.h.

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Member Data Documentation

Float SimSimulator::Params::_k_drag

Drag constant. Technically, this is 0.5 * C_D * rho, where rho is density of the medium and C_D is the drag coefficient. We combine this into a single constant for simplicity. Definition at line 161 of file simSimulator.h. Referenced by SimSimulator::preSubSteps(), and ClothApp::uiReceived().

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The documentation for this class was generated from the following file:

• simSimulator.h

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