Forces make things move. In particular, Syflex forces make Syflex-simulated objects move according to different types of natural (or unnatural) forces.
The Syflex ICE simulators do their force calculations according to the Newtonian physics. See Physics for ICE Trees for some basic information on some physics issues in ICE.
The Syflex ICE Forces compounds do their calculations on a "per object" context. Because of this, you cannot use other ICE force nodes or non-ICE forces, which are all calculated using a "per point" context (see ICE Forces [ICE Fundamentals]).
In ICE, the evaluations of a node start from its top port and go down, so the order in which nodes are plugged in usually matters (as it does for collision nodes). However, it doesn't matter in which order you plug the Force nodes into the Force ports on the Syflex Cloth or Syflex Curve (or syflexISimul) nodes. Their outputs are simply added together and output as one vector.
The Syflex ICE Forces compounds can be found in the Forces group on the Task > Syflex tab on the preset manager in the ICE tree.
The Cloth Spring and Curve Spring compounds create spring connections (3 types of springs) among the points on a simulated object. See Using the Syflex Spring Forces for more information.
The Damp compound adds resistance to the springs used in the cloth or curve simulator. This allows you to resist the elasticity of the springs and prevent jittering on the simulated object. See Using the Syflex Damping Forces for more information.
The Damp Air compound is similar to the Damp compound except that you can choose to which side of the simulated object you want the damping applied. The sides are determined by the direction of the object's normals. See Using the Syflex Damping Forces for more information.
The Gravity compound applies a directional force that defines an acceleration over time. See Using the Syflex Gravity Force for more information.
The Spring 2Pt compound creates a spring connection between two vertices on the simulated object. See Using the Syflex Spring 2-Point Force for more information.
The Volume compound increases or decreases the overall volume of the simulated object, allowing you to create inflation and deflation effects. See Using the Syflex Volume Force for more information.
The Wind compound applies a directional force with intensity and noise (perturbation) that adds variation to the wind's movement. See Using the Syflex Wind Force for more information.
The Zipper compound creates spring connections between vertex pairs on the simulated object (like the Spring 2Pt force), but it allows you to deactivate the springs' effect which lets you open and close the space between these vertex pairs, like a zipper. See Using the Syflex Zipper Force for more information.
