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Node Density
Tip:
This parameter controls how many branches are produced by the Object linked to the currently selected Object. The effect may appear somewhat indirect on the first hand view but you will quickly notice it's usefulness. Imagine you are applying the Node Density parameter to the trunk of a tree. You can specify for example that your tree will have many branches at the top, making for a complex crown. For other species it might be desirable to concentrate most of the branches in the lower part of the tree – you have one easy control to define these characteristics.
In Cinema automatically generated Texture Coordinates are usually created so that the texture origin is somehow in the upper left. The Branch Object‘s y Texture Coordinate has it‘s origin at the bottom. This may seem counterintuitive at first, because textures will appear bottom up when first applied. You can correct this by setting Y Texture Scale of the Texture tag to a negative value. This has been done because it may happen that in growth animations the object can „grow through texture space, either when using the „Growth“ Parameter or by hand animating the Texture Scale. Usually for plants the origin of a branch is the place where you would wish the texture to be attached to, which would not automatically be the case for the texture coordinate origin being at the top.