@Bantha, do you do any programming?

a shader is made from a bunch of nodes, WandW is correct in her assessment. No program I have ever written (and I have written a lot) is a recipe for anything. It logically states how to perform a given task. There is no logic in nodes, you simply plug them in using your own (or someone elses) idea of what they will / should produce.

If your argument is that programs are compiled, then you are incorrectly calling a shader a program, since shaders are not compiled. if they were, you would not be able to see how they were made by examining the nodes. the shader simply gives a graphic representation of a given material (real or imagined)

scatter-<--HSV is not really the same as

hsv.ConnectToInput(scatter.Input(5))

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