Bring realistic physics to your game with the Advanced Verlet Rope System. Whether you are building a grappling hook mechanic, a physics-based puzzle, or simply need decorative hanging cables, this package provides a stable and performant solution based on Verlet Integration.
Unlike simple joint chains, this system simulates soft-body dynamics, allowing ropes to stretch, slack, and interact naturally with the environment. It comes with a powerful Two-Way Coupling feature: ropes don't just follow objects; they physically pull and interact with Rigidbodies based on mass and force settings.
🔥 Key Features
- Robust Verlet Physics: fast and stable simulation that handles gravity, air friction, and stiffness constraints without jitter.
- Bi-Directional Coupling: Connect ropes to Rigidbodies. Heavy objects pull the rope, and the rope can pull objects back. Perfect for cranes, winches, or character swinging.
- Dynamic Procedural Mesh: Generates smooth 3D meshes at runtime. Fully customizable radial segments (resolution), radius, and texture tiling.
- Advanced Collision Detection:
Standard Colliders: Works with MeshColliders (convex/non-convex), Box, Sphere, and Capsule colliders.
Terrain Support: Efficiently handles collisions with Unity Terrain.
Self-Collision: Optional support for ropes colliding with themselves. - Runtime Manipulation (API):
Spawning: Create ropes dynamically using the RopeController.
Connections: Branch ropes by connecting them to other ropes, transforms, or rigidbodies at runtime.
Cutting/Resizing: Extend or shorten ropes, or cut them at specific nodes dynamically. - Custom Raycasting: Includes a dedicated high-performance Raycast system (VerletPhysics.Raycast) to detect hits on thin procedural rope meshes accurately.
🛠️ How It Works
Simply add the VerletRopeGenerator component to an object, set your start and end points, and hit play. The system automatically handles the mesh generation and physics constraints. You can pin nodes to static or moving objects to create complex physical contraptions.
📦 Use Cases
- Grappling Hooks & Swinging Mechanics
- Physics Puzzles (Pulling bridges, levers)
- Industrial Simulations (Cables, wires, hoses)
- Decorations (Hanging vines, chains, power lines)
Technical Details
- Solver: Iterative Constraint Solver (Adjustable iterations for performance vs. quality balance).
- Rendering: Uses standard MeshRenderer (Compatible with Built-in, URP, and HDRP pipelines assuming standard materials are used).
- Source Code: Full C# source code included.
Take full control of your physics simulations today with Advanced Verlet Rope!
