Скачать или смотреть Introduction to Blender's Node Groups

Use Blender's node groups to create reusable shaders and compositing effects: http://cgcookie.com/blender/2013/11/0...

The node system in Blender is very powerful gives unrivaled flexibility when it comes to creating shaders and compositing effects. One of the node systems most powerful features, though, is it's ability to group nodes together. By grouping nodes we can effectively create custom, reusable nodes.

This works by grouping sets of nodes together and then exposing specific settings, inputs, and outputs from the nodes within the group. This allows you to easily reuse the group node as an instance without needing to duplicate the original nodes each time.

By using node groups you can create complete libraries of shaders and compositing effects which can be linked or appended into any scene your working on. This can drastically improve the ease and efficiency of common node usages in your project.