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Obi

Unified particle physics for Unity

Obi is the first CPU-based realtime unified physics framework:

  • Unified framework for character and interactive cloth, fluids, ropes...
  • Advanced editor tools
  • High performance multithreaded solver
  • Two-way interaction with rigidbodies, supports all collider types
  • From low budget, simple effects to extremely complex behavior



Obi Cloth

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Obi Rope

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Obi Fluid

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Obi Cloth

The most advanced cloth simulator for Unity. It brings back and improves pre-5.x cloth functionality.

  • Modular design
  • Two-way rigidbody coupling
  • Pressure constraints: balloons and inflatables!
  • Terrain and mesh collisions
  • Realistic aerodynamics

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Obi Rope

Obi Rope will allow you to create realistic ropes and chains fast, with absolute control over their look.

  • Spline-based fast rope and chain generation system
  • Procedural rope mesh generation
  • Automatic chain generation from user-provided link meshes
  • Zero-stretch chain simulation

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Obi Fluid

Obi Fluid is a fully-fledged 2D and 3D realtime fluid simulator for Unity.

  • Simulate and render incredible liquids and gases
  • Material-based fluid parameters: water, oil, honey, ink...
  • Fluids can adhere to surfaces, form drops, split and merge...
  • Advect passive particles trough the fluid: bubbles, foam, dust...

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