星空材质着色器插件Extended Starfield

星空材质着色器插件Extended Starfield    [复制链接]

C4D插件 2016-05-19 16:34 发布

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C4D插件
作用分类: 材质 » 插件
插件分类: 插件
使用教程: 无教程
支持(高版本请自测): R13 R14 R15 R16 R17 R18 
支持语言: 英文 
支持系统: PC MAC 
出现位置: 材质通道 
检索码: -
222.gif 这个插件属于材质、插件分类,支持cinema4d软件版本为:R13、R14、R15、R16、R17、R18。语言为英文,系统支持PC、MAC。可以在软件材质通道位置找到本工具。当前素材由设计师用户:admin分享,更多关于材质插件、着色器插件、星空教程、星空插件、星空材质的内容请访问本网站。
This is a shader plugin to render star field backgrounds for space scenes. It is similar to the build-in star field shader but with a lot of options.
Basic usage: The maximum diameter of the stars is set as pixels in screen space. The distance between the stars is set by the UV-Spacing parameter. That means the distance is measured in UV space. You will need to adjust this spacing when you change your mapping parameters. Furthermore the shader cannot handle arbitrarily large stars. Their diameter may not exceed the spacing in between them. Keep in mind though that the respective parameters are measured in different spaces.
There are channels for auxiliary shaders to determine the spatial density distribution of stars (Density Map), and their brightness distribution (Intensity Map). In addition the brightness can be controlled by probability distribution functions (Intensity PDF/Dark Intensity PDF) which determine the probability that a star has a certain brightness. The Dark Intensity PDF is used when an spatial intensity map is set. The final brightness is interpolated between the values picked from the Intensity/Dark Intensity PDFs. Analogously you can set a probability distribution for the star size. Link Size to Intensity means that bright stars are also large and vice versa.

星空材质着色器插件Extended Starfield 
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