Wave effect realtime rendering method based on graphics processing unit (GPU)

Abstract

The invention relates to the technical field of computer graphics technology, and in particular relates to an optimization method of skeletal animation rendering, which comprises the following steps of: depending on a required water surface effect, making a corresponding Bump map by a graphic designer, for simulating a water surface height; by a vertex texture technology, disturbing on a grid height of a water surface in a vertex Shader, and reducing a calculation amount to the greatest extent through the Bump which reads a normal and a height, to achieve a real effect; meanwhile, aiming at the characteristic of comparatively serious consumption of the vertex texture filter, a height map is optimized and stored, so that the times of texture addressing is greatly reduced, and the water surface rendering depend on a normal map to implement illumination calculation because the normal map can faithfully represent all details under a high-frequency waveform. In addition, a low-frequency and high-amplitude wave is used for disturbing the water surface grid; and a water surface model is based on overlap of a plurality of height maps which are segmented on both space and time.

Description

[0001] technical field [0002] The invention relates to the technical field of computer graphics, and more specifically, to an optimization method for skeletal animation rendering. Background technique [0003] Ocean scene simulation is one of the important components of real-time visual simulation system. Similar to terrain simulation, ocean simulation also has the characteristics of a wide range. Unlike terrain simulation, the simulation of wave characteristics also has the characteristics of high randomness and shape complexity. The key and difficult points of wave simulation are wave height field generation, wave grid construction, and wave special effect generation. [0004] Water surfaces are a common effect in computer graphics, especially games. It is one of the important elements that add realism to the scene. But it is a difficult problem to simulate the real water surface, because the movement and optical effects of the water surface are quite complicated....

AI Technical Summary

Problems solved by technology

These methods can provide very realistic rendering effects, but unfortunately they require a considerable amount of computation, and therefore, are not suitable for interactive real-time rendering

Also, most games these days use fairly simple models, mostly just to create water effects by changing the water surface normals

Rendering the water surface using these methods, while fairly efficient, has low fidelity and doesn't really create any ripples on the water surface

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