Can I prevent shader settings being shared?

AndrewJJP

I have two instances if the same hair in my scene, created using "Edit -> Duplicate". The reason I've done this is because due to intentionally harsh lighting, the scalp is showing through, but I can prevent that by duplicating the hair, and moving the hair around the forehead in the copy to get better coverage. That works really well on the forehead but it creates a little too much thichness elsewhere. Fine, I thought, I'll just make the surfaces unwanted sufaces transparent on the duplicate.

I'm finding that when I set the opacity of the surfaces I don't want to be at 0% on the first copy, it also sets the second. Have I inadvertantly linked more than I really wanted to when I made the copy? I can see ways round it, like possibly deleting the unwanted geometry (assuming that won't delete both) or exporting as an obj and re-importing, or most likely, I'll render it twice, with and without the duplicate, and blend in postwork. But really, I wanted to understand why the surfaces are shared between the two copies. Is that expected?

Thanks!

Richard Haseltine

Duplicates should be independent, just like loading a second copy of the item - only Instances should be linked. Do the two hairs chnage in tandem if you adjust the morphs on one of them?

AndrewJJP

Richard Haseltine said:

Duplicates should be independent, just like loading a second copy of the item - only Instances should be linked. Do the two hairs chnage in tandem if you adjust the morphs on one of them?

Thanks Richard, no I was able to move the fringe on just one copy to achieve better coverave, but as soon as I made all the surfaces other than "bangs 1" and "bangs 2" transparent, both changed. It's rendering at the moment, and it's a complex scene that has a few hours to run, but when it finishes, I'll go back and do a sanity check in case I'm doing something stupid.

Richard Haseltine

I have had materials get linked between objects, though not in this context nor at all for a long time, so it isn't entirely posible that a glitch might have happened. It might be worth saving under a new name, then restarting Daz Studio (assuming you hadn't already done that in effect).

AndrewJJP

Richard Haseltine said:

I have had materials get linked between objects, though not in this context nor at all for a long time, so it isn't entirely posible that a glitch might have happened. It might be worth saving under a new name, then restarting Daz Studio (assuming you hadn't already done that in effect).

Thanks Richard. I will have a play with this properly and if I come up with a reproducible issue, I'll put some steps together, post it here, and report it.

But hopefully it'll go away. This render is taking forever to converge so I haven't been able to try it yet.