This set of parameters is only visible when the MultiBody's → “Simulation” option is set to “Soft body”.
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A MultiBody can consist of several objects, but it is not possible to change the objects' masses individually. Therefore, mass is controlled indirectly via this parameter: density = mass / volume.
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Internal resolution
Soft bodies use a voxelization method in order to bend polygons correctly. Imagine an object, where the triangles are bigger than the voxels. In such a case it is likely that the simulation will turn out wrong.
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This is the amount of resistance caused by a surrounding atmosphere. High settings can stop an object completely.
Internal
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damping
With high values, a body stops bouncing very fast and it will experience smaller bounces. You can use settings between 0.0 and infinity: a value of 0.5 will stop the entire internal movement after 2 seconds, a value of 1, after 1 second, for example.
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Here, the initial velocity of a soft body is defined. You can use any positive or negative value for the parameter's X, Y, and Z components. “Velocity” is measured in metres per second. Click on “+” for sliders.
Rotation W
Here, the initial angular velocity of a soft body is defined. You can use any positive (clockwise rotation) or negative (counterclockwise rotation) value for the parameter's X, Y, and Z components. “Velocity” is measured in degrees per second. Higher values make the object spin faster. Click on “+” for sliders.
Threshold
This value depends on a body’s change of its initial length to produce a permanent deformation. The range goes from 0.0 to 1.0. A value of 0.5 means that permanent deformation will only happen when the body’s length change is at least 50% of its initial size.
Acquired
The parameter's range goes from 0.0 to 1.0. A setting of 0.5 will keep approximately 50% of the node’s deformation as permanent. The other half is able to relax and turn back to its initial state.
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