Providing interactive displays of complex virtual environments includes generation of virtual reality (VR) files from a 3D model of the complex environment. The VR file(s) include octree and collision detection information that is used to simulate and render frames of the complex environment. During simulation, moving objects are evaluated to detect for collisions with other objects. Further, during rendering, objects or elements are dynamically tessellated during run-time operations to actively control their appearance when displayed to a user. Memory management operations facilitate the display of complex virtual environments.
