DrMcClark - I very carefully wrote in my first post a ke piece of info. Then renderosity ate my first posting and I had to type it all in again. (It always does this if you try to reply too long after having retrieved a thread.) I should know better, but I forgot to copy my text. So when I retyped it, I left something out. MY UNITS ARE INCHES If your units are not set to inches, and you use my displacement, bump, or other "size" related numbers, it will not work. I know its not the default, but when I'm visualizing what I want for new nodes, I think better in inches. For example, sand dunes 2 inches high or whatever. So go to Edit/General Preferences, find the tab with units on it, and choose Inches. After you've entered my materials, you can go back to feet or whatever - it won't change the mats. Instead the numbers will show up in the new units.

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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)