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Warp wrote:
> Slime <fak### [at] email address> wrote:
>
>>I think you need to work on the texture. The rust looks smooth and shiny.
>>You could make it rougher by adding a variation in the normal on a small
>>scale (maybe with the wrinkles or granite pattern but not scaled too big).
>
>
> My reference image was this:
>
> http://www.bio-vision.nl/ecards/gif/033306.jpg
>
Okay, so I think that in general the brownish "rust" is occuring in the
recesses and the bluish black areas are generally raised. I suppose on
the raised areas the rust either rubs off or they are more resistent to
corrosion in the first place because of compositional irregularities and
that is why they are raised. Also in some places you can see wear marks
that span a cavity without entering it. I think that is the next level
you have to take you picture to to get more realism.
When I first saw you picture I did think it suggested the sort of
cumulative rot that would happen on a chain immersed in the water a lot,
but not exclusively. So the depth of the texture didn't really throw me.
It was more the pattern if brown. As you photo shows it can be drizzled
through the overall rot and almost look like it is a property of the
material itself. But with enough observation, what the process is should
eventually be revealed. Slime shows advanced flaking from more exposure
to air. I believe, he was trying to posit "rust" with extent of the
corrosion you were evidently trying to show.
You see, you said "rust", which may have confused people, because we
generally associate that word specifically with iron oxide which is
usually caked or flaking or in a smooth thin cover but always quite matt
in finish.
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Warp wrote:
> Xplo Eristotle <xpl### [at] infomagicnet> wrote:
>
>>Even assuming you were going for a "forged iron" look for the links (as
>>I guess from the color and finish), a chain wouldn't be that rough. Cut
>>back on the normal; you want slight imperfections, not faux leather. I
>>wouldn't expect an iron chain to be that dark, either.. but I know some
>>iron IS that dark, so I leave it to your judgement.
>
>
>>As for the rust... Usually, when bare iron rusts from exposure to
>>moisture in the air, it doesn't go in bits and pieces, it rusts all at
>>once. If you can find photographs of a rusty chain or something similar,
>>you'll probably see that it all just goes kinda dull and brownish.
>
>
> Compare it to this:
>
> http://www.bio-vision.nl/ecards/gif/033306.jpg
As you can see, the metal is more brownish than black.. and while the
metal is heavily dinged, the normal you used isn't a particularly good
match.
This chain's not even particularly rusty.
-Xplo
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