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There are several MPM Configure examples available through the tab menu. These are similar to shelf tools that put down networks of nodes for learning purposes. The MPM Configure Rolling Snowball example illustrates the use of the “chunky” Snow material type.
It puts down a simple network of nodes to simulate a snowball rolling down a slope.
Important nodes ¶
snowball
This is the MPM Source that uses the Snow material preset. The main differences are two parameter changes from the default. The Density has been increased to 900, to make sure that the snowball has enough weight to sink into the snow of the slope. Additionally, the Stiffness has been increased to 28, to make sure that the snowball does not collapse on itself and preserves its shape while it’s rolling down the slope. There is also some initial Velocity added to the snowball to push it down the hill.
snow_slope
This is another 
MPM Source, which uses the basic Snow material preset.
static_slope
This is the 
MPM Collider, which uses the default Static collider type.
mpmcontainer
This setup uses a default 
MPM Container, which defines the resolution of the simulation using the Particle Separation parameter, and can sets limits on whether particles should be deleted or bounce on contact with the boundary.
mpmsolver
This setup uses a default 
MPM Solver, which does the work of solving the scene.
Learning from this example ¶
| To... | Do this |
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Make the snowball break apart as it rolls down the hill |
Decrease the Stiffness parameters on the |