Quote - Understanding the association between math and node set-up should save you having to teaching remedial Poser nodes, so you can get to the exciting stuff, like what all is contained in the Diffuse Channel.

Have you thought about using matmatic in this process? Matmatic is a script that automatically converts math (Python mathematical expressions) to Poser nodes. Quite often, it may help you to see how to do something with nodes. Quite often it will find a simpler way than you realized was possible. And, unlike you using the material room manually, matmatic can take advantage of hyper colors and hypo colors, colors you cannot enter by hand because of how the material room editor is restricting you.

For example, try typing:

Surface(2 * Spots(BLACK, (GREEN + WHITE) / 2) <= 1.5 * Clouds((RED - GREEN + WHITE) / 2, WHITE)

You might be surprised. The nodes are actually more powerful from matmatic than from direct manual manipulation.

The only problem with using it to see how things work is that sometimes it will collapse the nodes (optimize) because they are not needed.

For example, the upper half of that node setup computes (GREEN + WHITE) / 2. However, matmatic would do that directly and produce Color(.5, 1, .5) wherever you were using that expression.

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