Select so you can simulate multiple objects at the same time while treating them as a single rigid body. This is useful when you
have to perform solves that involve a large number of objects.
There are two states described in the Rigid Set Solver: and .
NoteYou can view these states as well as any other properties in the when you select the Solver.
See Create a Rigid Set from Multiple Objects for information on how to group multiple objects in a .
Bullet > Create Rigid Set > 
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Enter a name for your Rigid Set. Setting a name makes it easier to locate your set in the Outliner window. Be sure to choose
a unique name, otherwise the command fails.
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Creates a set node that lets you edit the content of the set after you have created it. If you do not create an Input Set,
you still get the geometry and transforms of the object cached in the initial state node but you cannot edit the contents
of the initial state later or if you want to export the solved state to a baked simulation cache file (ABC bullet export).
NoteAn input set is essential if you plan to export the simulation to an Alembic cache (ABC file).
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The creates a solved output mesh from the original source geometries. This lets you visualize the result of the simulation.
NoteNormal values and UV values are transferred but not materials or shaders. An alternative approach is to use the
Debug Draw
option found on the Bullet Solver shape in the .
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