Arnold 是一款高级的、跨平台的渲染 API。与传统用于 CG 动画的 scanline（扫描线）渲染器（Renderman）不同，Arnold 是照片真实、基于物理的光线追踪渲染器。可以单独渲染出真实光照，阴影，凹凸等特性的贴图

Arnold for Houdini (or HtoA) provides a tight bridge to the Arnold renderer from within the standard Houdini interface, in a way that is familiar to both Houdini users and Arnold users in Maya or Softimage. It also enables smooth lighting workflows between Houdini and other DCC applications, since setups can be exported and shared.
安装步骤：安装插件，拷贝ai.dll到C:\Program Files\Autodesk\Arnold\你的Maya版本\bin文件夹里面，替换即可

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链接: https://pan.baidu.com/s/134OnY_WJK7F7osJv7BtwhQ?pwd=qb4v 

提取码: qb4v