Vellum Grains Destruction with Animated Collision Objects

Download HIP File: HIP Vellum Grains Destruction.zip

Download BONUS HIP File: HIP Vellum Grains Soft Body.zip

Soft Body Vellum Object colliding with Vellum Grains

The rubber toy is a Soft Body Vellum object that is simulated using the Vellum solver. This animation is then fed into the Vellum Grains simulation and the collision between the soft body toy object and the grains is calculated with a second Vellum solver. The

Blue highlighted grains indicate the activated grains.

Red highlighted grains indicate the INACTIVE grains.

This makes it possible to target specific grains to become activated in the Vellum Grain simulation.

Animated sphere colliding with Vellum Grains triggering only colliding grains in Houdini

Collision Detection on Vellum Grains colliding with an Animated Sphere, which is a RBD Object in Houdini

This grinding effect uses the same technique of activating the Vellum Grains upon collision with an animated RBD Object, which is the sphere.