Oleguer Vilella wrote:
> Very nice Tim, but why the first drop is red?
> 
> Oleguer

There's a heart inside of it, going along with his "Down the Drain" 
theme.  I didn't see it right away, either; maybe you should make it larger?

...Chambers

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> There's a heart inside of it, going along with his "Down the Drain"
> theme.  I didn't see it right away, either; maybe you should make it
larger?

I am pondering about that as well. Trouble is, when I make it larger, the
relationship drop to faucet doesn't work really well anymore. It's not final
anyway, as I'm also thinking about making the drop still attached to the
faucet and just about to drop off.

I originally thought the red would attract the eyes, but I can see that the
resolution at which I posted does throw it off a little. Maybe I should also
find a way to attenuate the border a bit, that might help as well.

Regards,
Tim

-- 
aka "Tim Nikias v2.0"
Homepage: <http://www.nolights.de>

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"Tim Nikias" <JUSTTHELOWERCASE:timISNOTnikias(at)gmx.netWARE> wrote in 
message news:44035750$1@news.povray.org...
>> Very nice Tim, but why the first drop is red?
>
> The one thing my brother asked as well. If you'd take a closer look, you'd
> see that there's a heart in the drop. Add the title "Down the Drain" and
> you've got yourself something to interpret. :-)


    Your drop is much better than my drops in my last image. Mine are just 
boring old water drops...  :/

      Nice idea Tim, following this enthusiastically.  :o)

       ~Steve~



>
> Regards,
> Tim
>
> -- 
> aka "Tim Nikias v2.0"
> Homepage: <http://www.nolights.de>
>
>

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On second thought, I like the current size.  It will be much better, of 
course, at a higher resolution.

Anyway, if you do decide to increase the size of something, I'd go with 
making the glow around the drop stronger / larger, rather than changing 
the size of the drop itself.

Of course, it's not my image to begin with, so take this with a grain of 
salt :)

...Chambers

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>     Your drop is much better than my drops in my last image. Mine are just
> boring old water drops...  :/

You can have mine! The size is probably off, so you should scale it at the
end.

  blob{threshold .5
    sphere{0,2,1 scale .02*<1,1.25,1>}
    sphere{0,2,1 scale .01*<1,2,1> translate <0,.03,0>}
    sphere{0,2,1 scale .01*<1,1.5,1> translate <0,.01,0>}
    hollow
    pigment{rgbt <1,1,1,.99>}
    interior{ior 1.14}
    finish{
      specular 2 roughness .001
      reflection{0,1 fresnel}
    }
    //Scale and move to proper position here!
    scale 1
  }

>       Nice idea Tim, following this enthusiastically.  :o)

Hm... Now I'll become paranoid. ;-)

Regards,
Tim

-- 
aka "Tim Nikias v2.0"
Homepage: <http://www.nolights.de>

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> Anyway, if you do decide to increase the size of something, I'd go with
> making the glow around the drop stronger / larger, rather than changing
> the size of the drop itself.

That's something that is easily overdone, and all of a sudden you get a huge
red blob in your image. If I increase the size, I also have to make the
gradient smoother, so as not to make the red dot a red GIANT. But I'll see
how it'll turn out. I've been told to try for a background with tiles, and I
have to see how that works out.

> Of course, it's not my image to begin with, so take this with a grain of
> salt :)

I always do. I like to hear opinions and ideas, as they often lead to new
ideas or help improve the image. But as much as feedback is always
appreciated, the final choice is always mine. And I guess everyone knows
that and does it that way himself. :-P

Regards,
Tim

-- 
aka "Tim Nikias v2.0"
Homepage: <http://www.nolights.de>

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"Tim Nikias" <JUSTTHELOWERCASE:timISNOTnikias(at)gmx.netWARE> wrote in 
message news:4403297a@news.povray.org...
>> The water should form a spiralling whirlpool as it goes down the drain.
>
> Here's an attempt at that. Quite honestly, the refraction and viewing 
> angle
> obscure the view on the mesh so much that I don't think the extra workload
> is needed. I've written a small script to generate an array of points 
> which
> aren't spread evenly like in a heightfield, but are closer together at the
> center where the vortex is, and further apart at the edges, where there's
> less detail. I then twisted the vortex's axis a little with it being
> displaced, so the vortex doesn't go straight down, but swirl towards the
> drain.
>
> Might be that I've got to add another lightsource for highlights to show 
> the
> displacement on the vortex, but if that doesn't do much, I think I'll go
> stick with the simpler heightfield. Some of the caustics 
> (non-photon-mapped)
> are more pleasing to me visually in the old version.

Without reality-checking here it looks much like I'd expect it to. I don't 
think there's ever much visibilty for something like this. Might be larger 
than usual for the depth, if anything. Seems to me that the vortex is 
typically very thin, hardly breaking the surface, until the surface gets 
near the drain. So maybe this sink would be a little scary for people with a 
phobia about such things (sister's daughter did).  :)

Trying to remember about twisting directions... I know it is commonly 
thought that the northern and southern hemispheres of the planet have their 
own direction but it's apparently just a random thing instead. I forget. 
Something about no relation to weather that is influenced by earth rotation 
instead.

Bob H

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Bob Hughes wrote:
> Trying to remember about twisting directions... I know it is commonly 
> thought that the northern and southern hemispheres of the planet have their 
> own direction but it's apparently just a random thing instead. I forget. 
> Something about no relation to weather that is influenced by earth rotation 
> instead.

   I wondered how long it would take for someone to bring this up.

   The rotation of the water has nothing to do with the rotation of
the Earth or anything like that. It's purely a question of geometry
of the sink, the pipes, initial water movement, etc.

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So, here's a quick (heh, 7hours and not done yet ain't quick!) test with
focal blur.

The render wasn't complete yet, so the lower 120 lines or so are basically
just a blurred version of the standard antia-aliased render.

Anyways, I think the focal blur adds a lot and I'll keep it for the final
render. Now I'm getting to the spot where I'm unsure if I want to add
anything and I *really* should give it a rest for a day or two, and take
some more comments and suggestions. A good friend of mine wants to say
something as well, but as she's not here at the moment, I have to wait for
her as well.

The tiles behind the sink required a little change in the spotlight's
point_at, which in effect caused a little more lighting variance in the
lower left corner. I'm thinking about pushing it a little further (either
via texture or via lighting changes), but we'll see. As it is now I think
I'll be experimenting with some "less shiny-new-clean" textures to check if
it enhances the mood I'd like to create. I also want to try and add some
waterdrops onto the surface of the faucet near its base and on the sink.

And for those wondering, the waterdrop is now modelled with Silo like
everything else in the image besides the heart, the water in the sink, and
the foam on the soap.

Regards,
Tim

-- 
aka "Tim Nikias v2.0"
Homepage: <http://www.nolights.de>

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Attachments:
Download 'DtD_wip6.jpg' (115 KB)

Preview of image 'DtD_wip6.jpg'

I can only congratulate for a STUNNING image... I do have a couple of 
suggestions though:

1) Raise the ambient lighting a little. I think the image is a little dark.
2) The taps only have two knobs... I've never seen taps like this... Taps of 
this style seem to always have four knobs.  I think this would also round 
out this area of the image.
3) Where is the plug? In sinks like this, the plug is usually chained to a 
attachment just above the overflow... This would give you the opportunity 
for some real nice chain.
4) I think there is a little too much focal blur in this... the soap is a 
bit too blurred.

I agree with you about using some dirty textures rather than the too shiny 
ones...

Even as a WIP this image is bloody impressive... you have more patience than 
I do!

Rarius

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