Abstract
This paper presents a new method for simulating shallow-water waves for the marine simulator. Firstly, a sequence of sea surface height fields is achieved by solving 2D Boussinesq type equations. These height fields can exhibit the combined effect of the most shallow-water waves in the coastal region, such as shoaling, refraction, diffraction, reflection and non-linear wave- wave interaction, etc. Secondly, these height fields are synthesized to a new unlimited long sequence by rearranging their order according to their similarity. Finally, the height fields are used as vertex textures sampled by a view-dependent sea surface grid in the new order. Experimental results show that the simulated shallow-water waves have realistic effect with fast rendering speed. It is suitable for the applications of real-time simulation, the marine simulator especially.
Highlights
Simulating ocean waves has been among the most important problems in the study of the marine simulator, because the realistic waves can increase the realism of the virtual ocean scene, and provide correct wave-parameters to the ship maneuvering model
Ocean waves are an important factor for ship maneuvering, which requires accurate wave models
The virtual scene contains many other objects, so the ocean waves must be rendered enough quickly to ensure that the whole scene is rendered in real-time
Summary
Simulating ocean waves has been among the most important problems in the study of the marine simulator, because the realistic waves can increase the realism of the virtual ocean scene, and provide correct wave-parameters to the ship maneuvering model. It has been one of the most challenging problems in the research of the marine simulator. This paper focuses on the simulation of shallow-water waves because the vast majority of virtual scenes in the marine simulator are in coastal region.
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