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How about this one?
Post a reply to this message
Attachments:
Download 'screws.jpg' (94 KB)
Preview of image 'screws.jpg'
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nice screws, but the wood seems plastic
"Warp" <war### [at] tag povrayorg> a écrit dans le message de
news:464aaae5@news.povray.org...
> How about this one?
>
>
----------------------------------------------------------------------------
----
>
>
>
> --
> - Warp
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Warp <war### [at] tagpovrayorg> wrote:
> How about this one?
The plastic screwdriver handle is spot-on. Looks real (as do the screws, of
course.)
The screwdriver shank needs *something to reflect* on top, other than just
the screws on the side. Would definitely increase the reality factor there.
The rust spots on the screws can be improved, I believe, by reducing the
pigment's fade-to-transparency distance (tightening up the spots), and
adding a grainy normal there--micronormals, I suppose. Just to the rust.
KW
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Warp <war### [at] tagpovrayorg> wrote:
> How about this one?
Hi!
What I like:
- the plastic handle of the screwdriver
- wood texture & normal on the table
What I like less:
- metal texture on the screws & screwdriver
I think the metal parts should be more glossy... or maybe not.
My civ3-units - modelled and animated with pov-ray:
http://forums.civfanatics.com/showpost.php?p=2036938&postcount=4
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On 16 May 2007 02:55:36 -0400, Warp <war### [at] tagpovrayorg> wrote:
> How about this one?
Warp,
This is coming along nicely. I really like stills like this.
There are two things that are bothersome to me, though. First, the two screws that
are overlapping seem to be a little bit inside of each other. Second, the wood could
use a little more work. Aside
from those two things, it is looking really good!
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Warp wrote:
> How about this one?
Very nice, as the other versions. Some nitpicking: The focal blur is too
strong for my taste and I'm not sure about the wood texture: To me it
looks as if the colors should blend more into each other. Right now the
contrast is pretty hard (with respect to the colors).
But as I said: Very nice!
Regards,
Florian
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Warp wrote:
> How about this one?
Nice. It looks a bit oversaturated to me, but that might just be a
monitor difference?
One thing that stands out at me is the rust on the heads of the screws.
I wouldn't expect it to be seamless across the slot. E.g., on the screw
underneath the other screw, the rust goes across the slot, just as wide
inside the slot as outside, and picks up on the other side. This just
doesn't look right to me. The topmost-leftmost one looks better (altho I
realize it's the same texture) because it looks like there's a
discontinuity along the slot.
FWIW. :-)
--
Darren New / San Diego, CA, USA (PST)
His kernel fu is strong.
He studied at the Shao Linux Temple.
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Warp <war### [at] tagpovrayorg> wrote:
> How about this one?
wonderful screwdriver modelling. Nice plastic handle. Metal texture still
not quite right. And the wood right side black hole still doesn't look
quite as deep as it suggests because it's almost entirely lightned, no
shadow in the normal.
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aaglo wrote:
> - metal texture on the screws & screwdriver
I have to admit that I have no idea how to make a realistic-looking
metallic texture for the screwdriver...
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Warp <war### [at] tagpovrayorg> wrote:
> aaglo wrote:
> > - metal texture on the screws & screwdriver
>
> I have to admit that I have no idea how to make a realistic-looking
> metallic texture for the screwdriver...
If you want a reflective clean metal, like crome or polished stainless
steel, the material is basically defined by what it reflects. Using
environment mapping and real reflections rather than phong or specular
highlighting (which tend to look more plasticky) can help considerably.
You can also overlay a simple reflective chrome with layers of grease,
dust, dirt, rust etc and still have the reflectivity partially revealed.
-tgq
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"Trevor G Quayle" <Tin### [at] hotmailcom> wrote:
> Warp <war### [at] tagpovrayorg> wrote:
> > aaglo wrote:
> > > - metal texture on the screws & screwdriver
> >
> > I have to admit that I have no idea how to make a realistic-looking
> > metallic texture for the screwdriver...
>
> If you want a reflective clean metal, like crome or polished stainless
> steel, the material is basically defined by what it reflects. Using
> environment mapping and real reflections rather than phong or specular
> highlighting (which tend to look more plasticky) can help considerably.
> You can also overlay a simple reflective chrome with layers of grease,
> dust, dirt, rust etc and still have the reflectivity partially revealed.
>
> -tgq
A shiny, denty, rusty, dusty chrome:
#declare TChrome=
texture{
pigment{rgb 0.8}
finish{ambient 0
conserve_energy
diffuse 0.0
reflection{0 1 fresnel on metallic 0}
}
normal{dents 0.25 scale 1/15}
}
#declare TRust=
texture{
pigment {
granite
color_map {
[0.08 rgb <0.89, 0.51, 0.28>]
[0.15 rgb <0.70, 0.13, 0.00>]
[0.30 rgb <0.69, 0.41, 0.08>]
[0.30 rgb <0.49, 0.31, 0.28>]
[0.40 rgb <0.89, 0.51, 0.28>]
[0.40 rgbt 1]
}
}
finish {ambient 0 diffuse 0.4}
normal{
granite
normal_map{
[0.40 average normal_map{[1 granite -0.3][1 granite 0.2 scale 1/5]}]
[0.40 granite 0]
}
}
}
#declare TDusty=
texture{
pigment{
#declare PW=1;
slope y
color_map{
[pow(0.5,PW) rgbt 1]
[1.0 rgbt <0.40784, 0.39216, 0.18431,0.1>]
}
poly_wave PW
}
finish{
ambient 0
diffuse 0.6
}
normal{
slope y
normal_map{
[0.50 granite 0]
[1.00 granite 0.2 scale 1/10]
}
}
}
#declare M1=
material{
texture{TChrome}
texture{TRust}
texture{TDusty}
interior{ior 15}
}
-tgq
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Trevor G Quayle <Tin### [at] hotmailcom> wrote:
> A shiny, denty, rusty, dusty chrome:
Nice, but doesn't look too good on the screwdriver:
Post a reply to this message
Attachments:
Download 'sd.jpg' (22 KB)
Download 's.jpg' (20 KB)
Preview of image 'sd.jpg'
Preview of image 's.jpg'
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Warp <war### [at] tagpovrayorg> wrote:
> Trevor G Quayle <Tin### [at] hotmailcom> wrote:
> > A shiny, denty, rusty, dusty chrome:
>
> Nice, but doesn't look too good on the screwdriver:
You're right, it didn't come out too well for you. Try removing the dust
layer and scaling down the rust layer. You can also try adjusting other
aspects of the rust layer too like pattern type (though I think granite
looks the best from what I've tried), normals and the colour_mapping.
Also, as I said before, for materials such as this, it's all about what is
there to be reflected. An empty background will result in flat,
unconvincing reflections I find. This is why I've started using a lot of
environment mapping. I used to be a true purist and not want to use it,
but I have found that it's a lot easier than modelling a whole scene just
to show off one little object (also it stems from the development of the
lighting macro I posted recently)
Have a look at this image. The top is rendered with just a black background
and a textured plane (with a single point light). The bottom simply adds an
environment map (plus the associated scene lighting).
-tgq
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Attachments:
Download 'rustychrome.jpg' (644 KB)
Preview of image 'rustychrome.jpg'
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Warp <war### [at] tagpovrayorg> wrote:
> Trevor G Quayle <Tin### [at] hotmailcom> wrote:
> > A shiny, denty, rusty, dusty chrome:
>
> Nice, but doesn't look too good on the screwdriver:
FWIW, I don't think there's anything wrong with just shiney. I think a
different texture for the tips might be nice. The dull/grey portion at the
tips to me actually seems a little short on the ones in this photo, at least
compared with most of the screwdrivers I've seen that have this.
Charles
Post a reply to this message
Attachments:
Download 'screwdriver photo.jpg' (22 KB)
Preview of image 'screwdriver photo.jpg'
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On Wed, 16 May 2007 02:55:36 -0400, Warp wrote:
> How about this one?
I really like the blue highlight on the upright screw. Little touches
like this make (or break) a scene. The wood texture is the only thing I
find wrong with this picture: it is somehow unconvincing. Look at the
"knothole" by the screwdriver to see what I mean.
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"Charles C" <nomail@nomail> wrote in message
news:web.464d33ea4ef76416a5fa4f50@news.povray.org...
I think those might be magnetic tips?
~Steve~
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St. wrote:
> I think those might be magnetic tips?
Not necessarily. They're just a stronger alloy than the screws tend to
be made from.
--
Darren New / San Diego, CA, USA (PST)
His kernel fu is strong.
He studied at the Shao Linux Temple.
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