Proprietary Physics Engines
Proprietary physics engines are closed-source software tools that simulate physical interactions such as gravity, collisions, and rigid body dynamics, primarily used in video games, simulations, and visual effects. They are developed and owned by companies or organizations, offering optimized performance and specialized features but requiring licensing fees and lacking open community modification. Examples include Havok, PhysX (by NVIDIA), and Bullet (in its proprietary versions).
Developers should use proprietary physics engines when building high-performance applications like AAA video games or professional simulations that require reliable, well-supported physics with advanced features such as real-time destruction or complex vehicle dynamics. They are ideal for projects with commercial budgets where licensing costs are acceptable and stability is prioritized over customization, as they often come with dedicated support and integration tools for major game engines like Unity or Unreal Engine.