So, this shoiuld be the script then? I ran it and had no errors. 13 Nodes.

Yeah that looks right. Just load it and look at it.

In general, you will get really good at Matmatic shader writing if what you do is build up small and look at the resulting shader tree.

Try simple things like:

Surface(Granite())

Surface(GREEN * Granite())

Surface(Blend(GREEN * Granite(), .5 * Spots(RED, BLUE), .5))

Do fifty of these, getting progressively more complicated expressions. Type in every example I did in the manual and look at the resulting shader tree.

I spent 15 full days writing the manuals and all those examples. You should be able to go through them one by one, making a file of your own, reproduce my results, than modify each a little bit. It's like anything else, you need to build new connections in your brain, and that comes from practice, especially repetition.

After a while bells will ring, lights will come on, and you will wonder how you didn't see the connections right away as scripts.

 

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Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)