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An Artistic Rendering Method for 3D Fractals

机译:3D分形的艺术渲染方法

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摘要

In this paper,we present a novel method to render colorful 3D fractals based on so-called color-control sphere (CSS) and our improved escape-time algorithm. In the method,each point,called parameter point,in parameter domain is first judged whether it is an escape-point or not by an iteration loop,under the governing of a discrete dynamic system. Once the iteration loop is exited,an orbiting point corresponding to the parameter point is then mapped to a mapped-point in CCS and the distance from the mappedpoint to the center of CCS is evaluated. Subsequently,a color for rendering the parameter point can be obtained by employing a predefined color-control function in CCS with respect to the distance. Finally,all surface points,which are taken as a set of initial points of the discrete dynamic system,of arbitrary shape embedded in the parameter domain are rendered with their corresponding colors. As a result,a pseudo-3D fractal can be archived on the 3D surface.
机译:在本文中,我们提出了一种基于色彩控制球(CSS)和改进的逃逸时间算法的彩色3D分形渲染方法。在该方法中,在离散动态系统的控制下,首先通过迭代循环判断参数域中的每个点(称为参数点)是否为逃逸点。一旦退出迭代循环,则将与参数点相对应的轨道点映射到CCS中的映射点,并评估从映射点到CCS中心的距离。随后,可以通过针对距离使用CCS中预定义的颜色控制功能来获得用于渲染参数点的颜色。最后,将嵌入参数域中的任意形状的所有表面点(作为离散动态系统的一组初始点)用相应的颜色进行渲染。结果,可以将伪3D分形存储在3D表面上。

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