blender-manual/manual/modeling/modifiers/physics/collision.rst

Collision Modifier

The Collision modifier is a container for a Collision Physics. Collision physics provide interaction between different physics simulations.

Options

As the modifier is only a container its actual options can be configured in the Physics Properties tab. See the Collision Physics Properties for more information.

Example

Deflected particles.

Here is a Meta object, using Instancing Vertices to a particle system emitting downwards, and deflected by a mesh cube.