Note- In the license with matmatic, I explicitly state what copyrights I retain, and what I convey to you. For the most part what I care about is disallowing profit from copies of things I've published for free. (Scripts, shaders) All I require is that you can't charge for what I've given freely. You can charge for a prop or figure with the shader included (in whatever form) even though I originally wrote that shader. (in whatever form) By whatever form, I mean as a matmatic script or as a Poser mt5 or mc6 file, or as a screen shot.

This also applies to anything I've placed in a forum thread.

It does not apply to things I sell in my store, or to things I post on my web site, unless otherwise noted in the license agreements for whatever that is.

Occasionally I give up copyright. For example, parmatic is in the public domain.

Matmatic is not public domain and is protected by copyright. I give others the right to reproduce and distribute free copies of matmatic itself, so long as it is unaltered.

I also have stated in the matmatic docs:

Matmatic generates Poser material files.

• Unless a material file is produced from a licensed script (mine or 3rd party), you have the right to do anything you want with the generated Poser material files. Sell them, give them away, they are your files. You may include them in Poser add-on packages, figures, props, scenes etc.
• The materials produced directly from the scripts included with Matmatic (my scripts) are unlicensed. They belong to everybody and are free for commercial or non-commercial use. You may include them as parts of a Poser add-on package, figure, prop, etc. You can even sell them, on the basis that you put in the effort to install and run Matmatic for them.
• If you produce a material file from a licensed (mine or 3rd party) script, then the holder of that license will determine what you can do with the resulting files.

Note in that is implicit the notion that I believe a script has even more to it than copyright. I think I not only decide whether or not you can copy the script, but also how you can use that script and how you can use the output of that script. I don't think I'm wrong in saying that you are licensing (yah for free, but still) the right to use my script.

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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)