2009

Advanced rollout
Internal Steps Because deformable objects are more complex to simulate, it
is usually necessary to perform more
simulation steps on page 3892 to increase
stability. This parameter specifies the number of steps reactor performs
internally to simulate objects in this collection for each simulation substep
taken globally during the simulation. For example, at 60 fps, simulating at
one keyframe (step) per frame, 10 substeps, at three internal substeps for this
collection, reactor simulates the objects in this collection using 60x10x3=1,800
steps per second, while the simulation in general uses 60x10=600 steps every
second. This allows the objects in this collection to be simulated more
accurately without slowing down the rest of the simulation. In general terms,
you can think of it in this way:
■ Precision (stability) of overall simulation=Number of Substeps (as specified
on the
Preview and Animation rollout on page 4085)
■ Precision (stability) of objects in this collection=(Precision of overall
simulation)x(Internal Substeps)
Reset Default Values Restores Internal Steps to its default value.
4036 | Chapter 16 reactor