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Help! Having a rough time with neoprene-ish materials

Posted: Thu Jun 04, 2009 8:48 pm
by ernchesto
I'm in a bit of a tight spot here. I was given a rush job (needs to be done tomorrow), and it has lots of neoprene and fake leather (vinyl) stuff that is supposed to be black - and stay black when I light it.

I'm having troubles getting my materials to not reflect a whole bunch of light and 'brighten' on me. I realize that I must be doing something terribly wrong, but I'm not figuring it out.

Any suggestions?

Thanks,

ernchesto

Re: Help! Having a rough time with neoprene-ish materials

Posted: Thu Jun 04, 2009 9:17 pm
by m-Que
Well, basically start with setting 'Reflectance 90' to 0,0,0 - Black.
And here's what you get:
Image
Is that what you're after?

Re: Help! Having a rough time with neoprene-ish materials

Posted: Thu Jun 04, 2009 9:29 pm
by ernchesto
Yeah, thanks. I'm making progress - but I'm having a hard time using textures and keeping the 'blackness'. Can you tell I've been away from Maxwell too long!

Thanks for the help.

Cheers,

ernchesto

Re: Help! Having a rough time with neoprene-ish materials

Posted: Thu Jun 04, 2009 9:52 pm
by m-Que
If you're using just a simple neoprene texture, it would be easier to use a bump map instead of texture.

Re: Help! Having a rough time with neoprene-ish materials

Posted: Thu Jun 04, 2009 11:43 pm
by JorisMX
Neoprene has 2 different attributes

1. A pretty rough diffuse surface which is rather dull, sucking in light
2. A little specular / reflective part that gives a rather smooth shine to it

Perhaps generate a map to put into the roughness channel of a Specular BSDF weighted at around 10-20 percent using something like 20-35 Roughness for the smooth shine

Actually Tom made a pretty good tutorial on how to use Arroway textures with this technique and I think you will learn to understand the way to get detail by reading it.

You can find it here

Re: Help! Having a rough time with neoprene-ish materials

Posted: Fri Jun 05, 2009 12:55 pm
by ernchesto
Hey thanks a lot for your comments folks. It's quite helpful.

Funny how much reading one always seems to have to do around a deadline!

Cheers,

ernchesto

Re: Help! Having a rough time with neoprene-ish materials

Posted: Fri Jun 05, 2009 6:55 pm
by JorisMX
It helps disecting materials into its basic components when starting research for a job :wink: