Dynamic texture waterfall modeling method combined with multiple physical attributes

Abstract

The invention relates to a dynamic texture waterfall modeling method combining with multiple physical attributes, belonging to the technical field of virtual reality science. The dynamic texture waterfall modeling method comprises the following steps of: (1) measuring on the spot to acquire physical attribute parameters of real waterfalls in different environments, such as flow velocity, flow rate, head drop, terrain and sunlight which influence the forms of the real waterfalls, and also recording video textures in corresponding states by using a video camera; (2) extracting a plurality of control parameters from the dynamic textures of a waterfall model; (3) reasonably reorganizing acquired data in a database, and building distribution models for the physical attributes through correlation analysis; (4) determining demands according to scenes, and calculating real data inside the database by utilizing a mapping law to obtain the dynamic textures of the waterfalls, which approac to real effect; and (5) rendering the waterfall scenes by using the dynamic textures. According to the invention, a statistic law of multiple physical attributes and the dynamic textures of the waterfalls is extracted, high-lifelike waterfall scene modeling is carried out on the waterfalls in any environmental form by utilizing statistical distribution and the traditional data, the defect of model texture distortion brought about by ignoring physical factors in the traditional waterfall modeling is overcome and the real simulation of the surface textures of waterfall flows driven by the physical attribute parameters is realized.

Description

technical field [0001] The invention belongs to the technical field of virtual reality, and specifically relates to a modeling method for dynamic texture in realistic simulation of objects in the virtual reality technology. Background technique [0002] Virtual reality needs to simulate a variety of objects, and usually requires that the input and output image sequences have stable content and a certain degree of motion pattern repetition. For highly dynamic simulations such as waterfall scenes, generally due to the limitation of model representation capabilities, the real effect and credibility of dynamic textures are very important when expressing moving objects. [0003] Using the triangular patch method of traditional computer graphics to simulate the waterfall scene requires a lot of calculation and the effect is often not ideal. At present, the research on waterfall simulation mainly focuses on the following two approaches: the simulation method based on particle syst...

AI Technical Summary

Problems solved by technology

[0012] The technical problem solved by the present invention is to overcome the shortcoming that various physical attributes of the waterfall itself have a certain relative influence on the texture characteristics formed in all current waterfall dynamic texture generation methods.

Proposes a feasible solution to the problem of low reliability of the texture used by the existing waterfall texture modeling method when simulating a customized waterfall scene

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