I have to do some work today and then head home to the family, and that may delay my final version of the shader, as well as some further explanations.

But I want you guys to have something to play with in case I don't get to finishing this shortly.

So here is a prelim version of my BBNylon material file. Save it as BBNylon.mt5 somewhere in your materials folder. It is 68 nodes. Don't be scared. Just use the ones on the left for controlling it.

There are many parameters. We've talked about density and opacity, so that should be clear enough.

To use a lace map, load it into the Lace Map node, and set Enable Lace to 1.

To use a different color on the lace, set Enable Lace Color to 1.

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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)