wires, I don't think, that this is only connected with shadow and light. I have changed a lot, without getting a really good result.
All the odd effects I have seen meantime are all connected with .png textures and/or opacity. Maybe there really is an error in the calculations.

Experimenting with metals
1.5 and then 2.0

Well brainsguy, with the metallic also some is very odd.

If I make the metallic parts in in the metallic and roughness channel black, the colors are nearly so how in the texture. The nonmetallic parts are white.


Here I have inverted the metallic channel:


Here I have inverted the roughness channel:


Here are both channels inverted:


Here  the metallic channel is fully white:


Also a bug - the brightness -100 dos give white and 100 dos give black.

Have a nice day
Tesira

Meantime I have seen, that this dos happen with the brightness -100 ->white texture and 100 (black) only, if the texture is inverted. So maybe not a bug, but confusing.

Here we go fully metallic with a black texture in the roughness channel and a white in the metallic.

Yes, "all metal" with "zero roughness" should be extremely shiny.

No roughness = total smoothness

It really should be "zero" rather than "-100."

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iClone 7... Character Creator... Substance Designer/Painter... Blender... Audacity...
Desktop (homebuilt) - Windows 10, Ryzen 9 3900x CPU, GTX 1080 GPU (8GB), 32GB RAM, Asus X570 Pro motherboard, 2TB SSD, terabytes of disk space, dual  monitors.
Laptop - Windows 10, MSI GS63VR STEALTH-252, 16GB RAM, GTX 1060 (6GB), 256GB SSD and 1TB HDD

Sorry my post wasn't supposed to be here. I thought I was posting in one of the other topics.

Yes justaving.
You are welcome brainsguy, so I also have delt a bit more with metallic :)

Here I have worn the pirate lady to my little girl. It fits well, So cool.



Only the gloves are to small.


And I have problems with conform. There happen odd things. Here the result of increasing the gloves:


But this dos not work always in the same way. Sometime the effect is haevy, sometime it dos work a bit, how it should.
Sometime it dos already happen, if I click with the mouse at the gloves.
So it is hard to find the reason for this.

Have a nice day
Tesira

What a great pirate costume for your little girl Tesira! :)

There might be some displacement on the glove material. That would cause that. I usually hide the body mesh if it is fully hidden by clothing. You use the mesh edit tool to select and hide parts of the mesh.

Well rampa, the gloves were really fully deformed after this effect. There also the hide mesh would not help. We seems to have here really a bug.

Here we have worn the next outfit.
The shoes were much to great and also conform hasn't helped.
So I have used the mesh editor, this has worked well.
With this character also the appearance editor has loaded fast and has done, what he should.
I only have had problems with the nails. Nothing has worked, I have 5 times tried, to change the color. But suddenly all was ok.
So again hard to say, what was here the problem.



Have a nice day
Tesira

I've had problems scaling outfits before. Especially shoes.