Real-time rendering of realistic sea environment with adaptive lattice

Simulation of ocean environment has important significance for movie and game, marine surveying, driving training and disaster succor. It's hard and time-consuming to real-time render it with large-scale sea environment because of the complex interaction between environment and seawater. This paper presents a new modeling method combined with adaptive lattice for rendering of seawater and undersea environment. Firstly adaptive hierarchy lattice including mixed lattice and view-dependent hierarchy lattice is proposed for undersea water volume sampling, and nested grids for seawater environment under different weathers. Then fully considering the interaction between environment and water, a light transport model combined with scattering phase function, caustic map based on gauss filter and cylinder-based shaft are presented to model the undersea environment. Environment under different weathers are also gained by GPU-based particle systems. Further, the hierarchy optimize method and GPU accelerate technology are introduced to render undersea and ocean environments under different conditions in real time.