Houdini 16.5 Particles

Reacting to surfaces

On this page

The Collision POP lets you specify how the particles will react once they collide with the surface. You can make them die, bounce, stop, stick, or slide on collision, as well as continue on course.

The Creep POP lets you manually stick particles to a surface at explicit UV coordinates as well as slide them along the surface.

The Limit POP is very similar to the Collision POP, but instead of detecting collisions with geometry, it detects particles "colliding" with an imaginary boundary, either a box or a sphere.

The Soft Limit POP is like the Limit POP, but gives softer bounces.

Using Collision

  1. Click the Collision button on the Drive Particles tab of the shelf.

  2. Click the particle system you want to be affected and press Enter to confirm your selection.

  3. Click the object you want the particles to affect and press Enter to confirm your selection.

  4. Choose how the particles will react in the Behavior drop-down menu on the Behavior tab of the parameter editor.

For specific parameter help see the Collision node help.

Using Creep

  1. Click the Creep button on the Drive Particles tab of the shelf.

  2. Click the particle system you want to be affected and press Enter to confirm your selection.

  3. Click the object you want the particles to stick to or slide along and press Enter to confirm your selection.

  4. Choose how the particles will react in the Behavior drop-down menu in the parameter editor.

For specific parameter help see the Creep node help.

Particles

Getting started

Behavior

Next steps

Guru-level