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Black dots on texture, can anyone tell me what are they?

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David Cabestany
Black dots on texture, can anyone tell me what are they?
on May 13, 2016 at 9:48:03 pm
Last Edited By David Cabestany on May 13, 2016 at 9:49:52 pm

I'm trying to replicate this material:



I created a material with a fresnel on the alpha channel and a light blue on the luminance channel. that gave me the blue glowy contour of the shape. then I created another material with a 3D gradient on the luminance channel.

I haven't figured out the reflectiveness yet.

It looks close to what I'm looking for, but there are several black spots on the surface that I don't quite understand why they are happening.



I'm applying each material to instances of an original untextured object which is hidden.

Can anyone tell me what are those dots?

Thanks in advance.


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Brian Jones
Re: Black dots on texture, can anyone tell me what are they?
on May 13, 2016 at 9:59:39 pm

you have multiple instances occupying the same space?


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David Cabestany
Re: Black dots on texture, can anyone tell me what are they?
on May 13, 2016 at 10:09:43 pm

Yes, they are in the exact same coordinates.


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Brian Jones
Re: Black dots on texture, can anyone tell me what are they?
on May 13, 2016 at 10:12:52 pm

and you are using Transparency to mix the textures? If so, you can't do that without getting that kind of artifact from polys occupying the same physical space. You can put one texture on one object and get the effects you want or put multiple textures on one object (using Mix Textures).


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David Cabestany
Re: Black dots on texture, can anyone tell me what are they?
on May 13, 2016 at 10:14:46 pm

I tried adding the "fill" and "stroke" in the same material, but wasn't getting the desired effect. How do I mix textures?

Thanks,
D.


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Brian Jones
Re: Black dots on texture, can anyone tell me what are they?
on May 13, 2016 at 10:57:27 pm

it should be possible using the various channels and possibly the Layer shader in those channels - some of the apparent effect in the example image is coming from lighting as well though (assuming it's not just photoshop) so you have to think about that as well. As time permits, I'll try it as well...


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David Cabestany
Re: Black dots on texture, can anyone tell me what are they?
on May 13, 2016 at 11:05:37 pm

Thanks man, much appreciated.
I'm slowly getting there:



This is two materials laid on top of each other on the same model.

Best,
D.


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