--- title: "PRepulse&Bounce" url: "https://help.maxon.net/c4d/en-us/Content/html/OP_REPULSEBOUNCE.html" section_path: "Thinking Particles > Nodes > TP Dynamic Group > PRepulse&Bounce" element_id: "OP_REPULSEBOUNCE" description: "This page documents the PRepulse & Bounce node of Thinking Particles in Cinema 4D. It handles particle-to-particle collisions and force-field-like …" --- # PRepulse&Bounce > **Note:** **What is it about?** > > This page documents the **PRepulse & Bounce node** of Thinking Particles in **Cinema 4D**. It handles particle-to-particle collisions and force-field-like attraction or repulsion — keeping swarms from interpenetrating or making them push apart. ![Image: 002782.jpg](https://help.maxon.net/c4d/en-us/Content/Resources/Images/002782.jpg) This Node is especially useful for enabling particles to collide with one another. In addition, the particles can be made to act like force fields that can attract or repel.