This compound lets you create a cascade of falling objects in the way that leaves fall to the ground from a tree. The Leaf Falling Motion compound is used inside to create the falling movement. The orientation is randomized to add realism to the leaves' movement.
Plug its Execute output into a port on the ICETree node.
You can also choose Particles 
Create Particles Falling Leaves from the ICE toolbar and then pick an emitter object to create leaves using this compound.
| Emitter |
Plug in the geometry from which you want to emit particles. This must be a geometry with a surface. You can plug multiple geometries into this emitter. |
| Size |
Defines how large the particle is. This value is the particle radius, but the particle display size is the diameter. For example, if the Size value (radius) is 1, the diameter (display) size is 2. See ICE Particle Size [ICE Particle Simulations] for more information. |
| Color |
Defines the initial particle color as displayed in the viewport. Set the color value using the standard color sliders and color box. Rendered particles do not use the particle color values unless you've set up the shader to do so, such as with an Attribute_Color shader. See ICE Particle Color [ICE Particle Simulations] for more information. |
| Rate |
The number of particles that are emitted per second. |
| Gravity Strength and Direction |
Amount of force pulling the particles in a certain direction. Define the particle direction in global XYZ values. |
| Roll Speed |
The amount that the particle rotates around its own Z axis, like tumbling. |
| Spin Value |
The amount that the particle rotates around its own Y axis, like a spinning top. |
| Lift Value |
The amount of upward movement. |
