Fragment a mesh and simulate an explosion. Live demo here.

Put the MeshExplosion MonoBehaviour on a GameObject with a Mesh. Configure the explosion:

• SpreadDirection: The direction of the spread (in world space)
• Gravity: The gravity acceleration (down in world space)
• SpreadForce: The spread force (with a mass of 1). How fast fragments are spread
• Duration: The length of the animation in seconds
• Drag: How fast the fragments are slowed down
• MinAngularVelocity: Min value used to generate a random rotation of the fragments
• MaxAngularVelocity: Max value used to generate a random rotation of the fragments
• Spreadings: Set of spreading configuration. The spreading goes between two cones of radius MinConeRadius and MaxConeRadius. Both cones use the main SpreadDirection
  • Quantity: [0..1] percentage of fragments using this spreading configuration
  • MinConeRadius: First cone radius
  • MaxConeRadius: Second cone radius
  • ConeRingDistance: The length of the cone. Low value sets a wide spreading. High value sets a narrow spreading.
  • MinForce: Min value used to generate a random scale applied to the SpreadForce
  • MaxForace: Max value used to generate a random scale applied to the SpreadForce
  • DebugColor: Color used in the scene view

The MeshFragmenting class splits the mesh into fragments (it make sure each triangle has its own vertices).

The MeshExplosion class animates the fragments over time.