The Unreal Physics system:
- Powered by NVIDIA PhysX.
- Rigid body physics system supporting player interaction with physical game objects, ragdoll character animation, complex vehicles, and dismemberable objects.
- Supports player interaction with physical game objects, ragdoll character animation, complex vehicles, and dismemberable objects.
- Cloth simulation, including tearing and welding.
- Soft body simulation – elastic and deformable objects produce more organic game worlds. Players can interact with flexible objects, and gelatinous surfaces can exhibit sticky properties.
- "Physical Material" system that allows per-object or per-surface properties such as friction, sounds and effects.
- Physics-driven sound.
- Fully integrated support for physics-based vehicles, including player control, AI, and networking.
- Gameplay-driven physical animation – capable of driving physics based on animation, and blending the results in many ways.
- Unreal PhAT, the visual physics modeling tool built into UnrealEd that supports creation of optimized collision primitives for models and skeletal animated meshes; constraint editing; and interactive physics simulation and tweaking in-editor.
- Destructible environments allow scene elements to break apart and collapse realistically, using the Fracture tool in UnrealEd.
- High-density crowds: flocking technology that simulates in real time hundreds of characters within a scene, making it possible to have masses of enemies onscreen at once.
