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This may be my first post, but it isn't my first image. I've been using
PovRay sporadically since I found version 2 on a magazine cover disc
(I've still got a 100 sheet dot matrix printout of the entire manual!).
Currently unemployed, I decided to have another crack at doing Penrose
tiles, the hard way. After a week I gave up and did them the easy way :)
I also wanted to create some more Geomag models. Geomag consist of 27mm
long magnetic rods, and half inch diameter steel ball bearings. I
originally modelled it 2 or 3 years ago, based on a set I bought as a
present for my sister. Since then I've bought a load for myself, which
has a new rod design, and different colours. The shapes here are very
simple, I have built shapes with up to 540 rods and weighing over 3Kg
(As soon as I'm earning again I must go buy some more...).
I thought I could call Penrose tiling a chequered plane and combine that
with the reflective spheres of the Geomag, and present it here as a
first post.
Rendered on an AMD Athlon XP 1800, 768Mb ram, at 2560x1920 overnight.
Uses blurred reflections, area lights and radiosity, although the latter
doesn't really show. JPEG compression has done strange things to the
magenta piece.
Post a reply to this message
Attachments:
Download 'geomag_penrose-4.jpg' (173 KB)
Download 'us-ascii' (1 KB)
Preview of image 'geomag_penrose-4.jpg'
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Alex wrote:
> I thought I could call Penrose tiling a chequered plane and combine that
> with the reflective spheres of the Geomag, and present it here as a
> first post.
Hmm. Very nice. Even though the reflective spheres have been cruelly
brought out of their native habitat of the checkered planes ;)
But, then again, dometicated dogs and cats don't seem to argue with air
conditioned homes, either.. :)
--
~Mike
World Society for the Preservation of Reflective Spheres in their Native
Habitat. (WSPRSNH)
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#include "colors.inc"
penrose's tilings are one of my obsessions, how do you made this mosaic?
manually?
pretty image, by the way.
--
light_source{0,1}#macro C(r,p)cylinder{x*-2,x*2,.9 pigment { rgb
p} /* B Gimeno estoeslarealidad */ rotate p*90 } #end difference
{box {-1,1} C(z /* http://usuarios.lycos.es/game2413 */,x)C(x,y)
C(z,z) pigment{rgb 2} rotate 45 translate z*4} // www.povray.org
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Post a reply to this message
Attachments:
Download 'us-ascii' (2 KB)
Download 'image3.jpg' (18 KB)
Download 'us-ascii' (1 KB)
Preview of image 'image3.jpg'
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Alex <pov### [at] lazysod orguk> wrote:
> This may be my first post, but it isn't my first image. I've been using
> PovRay sporadically since I found version 2 on a magazine cover disc
> (I've still got a 100 sheet dot matrix printout of the entire manual!).
And I still have a dot-matrix printout of the manual for DKB 2.12 for Amiga.
:)
> Currently unemployed, I decided to have another crack at doing Penrose
> tiles, the hard way. After a week I gave up and did them the easy way :)
They can be tricky! :) What technique did you use? Here's one I posted back
in April: <web.425b6e5da45a985aad93754b0@news.povray.org>
I first started using Penrose macros from Boxer by John VanSickle, but I
ended up making up my own macros. I can post the sources if anyone's
interested.
> I also wanted to create some more Geomag models. Geomag consist of 27mm
> long magnetic rods, and half inch diameter steel ball bearings. I
> originally modelled it 2 or 3 years ago, based on a set I bought as a
> present for my sister. Since then I've bought a load for myself, which
> has a new rod design, and different colours. The shapes here are very
> simple, I have built shapes with up to 540 rods and weighing over 3Kg
> (As soon as I'm earning again I must go buy some more...).
They lok like fun, but a bit pricey for what you get. FWIW, you can get very
powerful magnets out of dead hard drives.
> I thought I could call Penrose tiling a chequered plane and combine that
> with the reflective spheres of the Geomag, and present it here as a
> first post.
It looks fine to me.
> Rendered on an AMD Athlon XP 1800, 768Mb ram, at 2560x1920 overnight.
> Uses blurred reflections, area lights and radiosity, although the latter
> doesn't really show. JPEG compression has done strange things to the
> magenta piece.
I normally try to use JPEG quality of 90% for pics I post here, and a little
smoothing to hide artifacts, but sometimes using .png is the only way to
show the true quality of an image.
Anyway, here's a close-up of an earlier Penrose tiling I did. We seem to
have chosen similar colour schemes.
Post a reply to this message
Attachments:
Download 'penrosem0.jpg' (75 KB)
Preview of image 'penrosem0.jpg'
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"PM 2Ring" <nomail@nomail> schreef in bericht
news:web.42d322fa811cc7c3ad93754b0@news.povray.org...
> Alex <pov### [at] lazysodorguk> wrote:
> > Currently unemployed, I decided to have another crack at doing Penrose
> > tiles, the hard way. After a week I gave up and did them the easy way :)
>
> They can be tricky! :) What technique did you use? Here's one I posted
back
> in April: <web.425b6e5da45a985aad93754b0@news.povray.org>
>
> I first started using Penrose macros from Boxer by John VanSickle, but I
> ended up making up my own macros. I can post the sources if anyone's
> interested.
>
You guys are really smart! (no irony here; just awe)
I have not tried my hand at Penrose tiles, but seeing your works makes me
slaver. I am afraid though, it is a little bit beyond my capabilities...
Thomas
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In message <web.42d322fa811cc7c3ad93754b0@news.povray.org>, PM 2Ring
<nomail@nomail.?.invalid> writes
>Alex <pov### [at] lazysodorguk> wrote:
>> Currently unemployed, I decided to have another crack at doing Penrose
>> tiles, the hard way. After a week I gave up and did them the easy way :)
>
>They can be tricky! :) What technique did you use? Here's one I posted back
>in April: <web.425b6e5da45a985aad93754b0@news.povray.org>
>
See other post. I'm afraid I must have missed your post, I've been
subscribed to the group for some time but skipped some posts recently in
order to catch up. I shall attempt to request it with my newsreader!
>I first started using Penrose macros from Boxer by John VanSickle, but I
>ended up making up my own macros. I can post the sources if anyone's
>interested.
>
I remember seeing some of those animations. Some interesting patterns &
objects. Can't say I can remember any Penrose tiles, I may go look
later.
>> I also wanted to create some more Geomag models. Geomag consist of 27mm
>> long magnetic rods, and half inch diameter steel ball bearings. I
>> originally modelled it 2 or 3 years ago, based on a set I bought as a
>> present for my sister. Since then I've bought a load for myself, which
>> has a new rod design, and different colours. The shapes here are very
>> simple, I have built shapes with up to 540 rods and weighing over 3Kg
>> (As soon as I'm earning again I must go buy some more...).
>
>They lok like fun, but a bit pricey for what you get.
Yes it's expensive, but very very good. Once you have some you want to
go out and buy some more, to make bigger things! There are some cheap
copycat sets about (I have some), but they are pathetic.
>FWIW, you can get very
>powerful magnets out of dead hard drives.
>
I've taken 2 apart before. I have several other dead ones I could
dismantle. The magnets are very brittle, though.
>>JPEG compression has done strange things to the
>> magenta piece.
>
>I normally try to use JPEG quality of 90% for pics I post here, and a little
>smoothing to hide artifacts, but sometimes using .png is the only way to
>show the true quality of an image.
>
The .png version was 851KB, I couldn't find any guidelines for
attachment sizes, but I thought it a little big.
>Anyway, here's a close-up of an earlier Penrose tiling I did. We seem to
>have chosen similar colour schemes.
>
I chose my colours so they averaged to 50% grey, that was the first pair
I found that didn't look awful. I thought it might help the appearance
of the blurred reflections of distant tiles.
I notice you've divided your tiles up to show both the rhomb and the
kites/darts tiling together, that's pretty smart. And you've done proper
curved edges, I just did a flat bevel by intersection of planes.
--
Alex
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Post a reply to this message
Attachments:
Download 'penrosem0.jpg' (5 KB)
Download 'rprismh1.jpg' (144 KB)
Preview of image 'rprismh1.jpg'
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