This tool uses the POP Collision Detect node to detect and react to collisions. You can use this tool to get particles to move, die, stick or slide on an object once they hit.

Bouncing is handled using Static Objects or RBD Objects.

1. Create a particle system using the Location or Source shelf tools.

2. Create an object for the particle system to collide with.

3. Click the Collision Detect tool on the Particles tab.

4. Select the object for collision detection and press Enter.

   For specific parameter help, see the Collision Detect POP node help. You can choose what happens to the particles once they hit using the options on the Behavior tab.

   Note

   Turn on Move to Hit if you want to trigger an effect from a particle’s collision. For example, if you want to birth more particles, you want the particle at the hit location, not where it ended up at the end of the frame. This will move the particle back to it’s hit location.

   In the following example, particles that hit the grid are sticking to it and are colored red.

   

5. If you see particles, passing through the collision object, select the POP Solver DOP and increase Min Substeps and Max Substeps to improve collision detection.