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Every tree begins with a set of instructions describing how to spawn branches and sprouts. A pipeline is a collection of elements holding these instructions. The pipeline can be seen as a chain of elements linked together to let data flow through it, each element works on modifying some aspect of the final tree product. It is mandatory for a pipeline to be complete in order to generate trees; this means having a starting (source) and an ending (sink) element ; a few other elements can be added in between too.


Pipeline elements has one specific function and are sequentially dependent between them. There first elements on a pipeline are generators, which create the basic tree data structure used latter by other elements to create meshes and apply textures and materials to the tree. Pipeline elements are displayed using nodes on the tree editor canvas view. Selecting a node lets you modify the pipeline element settings on the inspector view. In the next section pipeline elements are described in more detail.

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