The Research And Design On The System Of Water Shaders Based On The Advanced Render Renderman

With the development of computer hardware and multimedia technology, computer 3D cartoon becomes widely used in battlefield simulatio, landscaping, visual reality, medical and sanitation, entertainment and education etc.During implementing the three-dimensional cartoons, shaders are one of the important keys in artistic effect. But for the localization which determinated for its polulation such as render speed and no customization for special project, the kind of the shaders for the 3D model are poor, and low interactive capability in the main software such as Maya or 3dmax. Therefore, it is important to update the render speed and benefit when design new shader system in the third-party renders.Renderman is a rendering software used widely in Hollywood with its advantages as bellows: affording interface extension, having mature technology. The paper designed a stream shader system including sea water module,lake water module,brook water module and natatorium water module in Renderman based on the research in Rsl techonolgy combined with physics,computer graphics,maths,aesthetics,computer programming. The system has broad application foreground when combined with 3D software such as Maya in designing 3D cartoon.The design of the system and the realization of modules including sea water module,lake water module,brook water module and natatorium water module that were depicted in this paper. All of the modules are accomplished by software technology with using Rsl, stochastic process theory and computer graphics.Because of the little investment on hardware, the system has the virtue of low cost, high render speed. According to the design scheme of the project, the development work and the function of sea water module, lake water module, brook water module and natatorium water module were finished. Through experiment, the results indicate that the system archives good perceptual picture quality and favorable speed.