The RenderMan Studio includeThe RenderMan Studio include:

RenderMan for Maya Pro™
Integrates tightly with Maya to provide a bridge to Pixar's RenderMan.

Slim™
The complete solution for shader management and creation. Build shaders visually and take full advantage of the RenderMan Shading Language.

Alfred™
The scriptable work distribution system. Perfectly suited for managing large render farms. 

"it"™
The image tool with powerful script based compositing.

说实话有点晕，又是 RenderMan for Maya 2.0 ，又是RenderMan for Maya pro……
不过前者应该是插件，后者应该是rat的升级版，名字真的很混乱，建议取名为renderman simple，renderman nb，renderman bt之类的容易理解些

 http://www.pointy.tv/h9_video/procedural_forest.mov

看完觉得真的是很方便，比maya直观多了，真有想学的冲动，无奈要学的东西太多了，不过实在是个好东西，见面也很漂亮，那节点窗口和shake简直一样

第一张是02年ilm在siggraph的招聘海报，有点酷