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"Felbrigg" <som### [at] microsoft com> schreef in bericht
news:40a38696$1@news.povray.org...
> Hey, just had a thought. You've created a macro for placing blocks into a
> surface which is very cool. How about extending your coolness!?
>
> Your could use that same technique to build a mesh that traversed a
> landscape, which would create a memory saving alterative and allow you to
> apply a "road" like texture to the whole thing!
>
> Just an idea. ( But I really hope you do it, cos your a clever
> chap!!!!!!!!!!)
To much honor, really! I am a simple POVer without particular skills. :-}
Hmm... Alternatively, I have used image maps of cobblestoned surfaces, of
course, on a HF (or isosurface) to simulate just that, and it renders pretty
fast. For backgrounds that is fine (even for foregrounds sometimes). But the
real thing is better in the foreground. You could combine those then...
Thomas
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"Felbrigg" <som### [at] microsoftcom> schreef in bericht
news:40a36df1$1@news.povray.org...
> Very nice, I've checked this out and immediately added it to my library,
> which is the best compliment I could ever give you.
>
Thank you indeed!
Thomas
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"Gilles Tran" <tra### [at] inapginrafr> schreef in bericht
news:40a39851$1@news.povray.org...
> Nice ! Another useful pattern would be the typical Parisian street
pattern.
>
http://www.photographyatelier.org/atelier03/WendyGoldberg/homageaparis/whg12
Cobblestones_JPG.html
> Notice how the stones are all loose and ready to be picked up for rioting,
> btw ;-)
>
Thanks! Yes, I have been thinking along that line (not rioting, for the time
being, at least!) and would like to do it. Have to think about how to do
this...
Thomas
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On Thu, 13 May 2004 21:08:22 +0200, François Dispot <woz### [at] club-internetfr>
wrote:
> > Nice ! Another useful pattern would be the typical Parisian street pattern.
> >
http://www.photographyatelier.org/atelier03/WendyGoldberg/homageaparis/whg12Cobblestones_JPG.html
>
> Something like this? (1998)
... or this ?
http://news.povray.org/povray.binaries.images/thread/%3Cfrtcqukqskq3snrb0trt3haqem0f4m6i30%404ax.com%3E/
ABX
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"ABX" <abx### [at] abxartpl> schreef in bericht
news:u819a0t3c7rse2c6eaf33m5tc4hmb49kir@4ax.com...
> ... or this ?
>
http://news.povray.org/povray.binaries.images/thread/%3Cfrtcqukqskq3snrb0trt
3haqem0f4m6i30%404ax.com%3E/
>
Hmm... The problem here is that the pattern 'desintegrates' towards the
boundary of each arc. In reality, the last stone of a given arc is the first
stone of the adjacent one, like uou can see in the photograph refered to by
Gilles Tran.
In itself, this seems easy to model (I tested something in Moray today), but
I came up against a fundamental difficulty that concerns the different
curvatures of the inside and outside of each arc of stones. At the ends, the
stones overlap! (>> see the attached image) and adjacent arcs are not well
integrated.
Thomas
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Attachments:
Download 'Image.jpg' (40 KB)
Preview of image 'Image.jpg'
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On Thu, 13 May 2004 11:23:59 +0200, "Thomas de Groot" <t.d### [at] internlnet>
wrote:
> Back in 1999, I wrote a macro for generating a cobbled street.
> I have now rewritten it, to enable it to be traced on a heightfield or an
> isosurface. Three patterns are available (see images).
> The macro is posted in p.b.u. under subject: Cobbled street.
This thread gives me ability to post something I always wanted to share for
inspiring somebody but couldn't because of photo nature ;-) Here are stone
stairs I made in my hause. The key of the design is that external edge has
doubled length of inner edge. To make it on-topic this was of course
visualized in POV-Ray before building.
ABX
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Attachments:
Download 'mur2.jpg' (51 KB)
Preview of image 'mur2.jpg'
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ABX wrote:
> This thread gives me ability to post something I always wanted to share for
> inspiring somebody but couldn't because of photo nature ;-) Here are stone
> stairs I made in my hause. The key of the design is that external edge has
> doubled length of inner edge. To make it on-topic this was of course
> visualized in POV-Ray before building.
>
In your house? How cool. I guess a man's home ^is^ his castle.
Dave Matthews
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ABX wrote:
> On Thu, 13 May 2004 11:23:59 +0200, "Thomas de Groot" <t.d### [at] internlnet>
> wrote:
>
>>Back in 1999, I wrote a macro for generating a cobbled street.
>>I have now rewritten it, to enable it to be traced on a heightfield or an
>>isosurface. Three patterns are available (see images).
>>The macro is posted in p.b.u. under subject: Cobbled street.
>
>
> This thread gives me ability to post something I always wanted to share for
> inspiring somebody but couldn't because of photo nature ;-) Here are stone
> stairs I made in my hause. The key of the design is that external edge has
> doubled length of inner edge. To make it on-topic this was of course
> visualized in POV-Ray before building.
>
> ABX
>
>
ok, i'll bite
where the source, luke ?
:-)
stephen
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Thomas de Groot wrote:
> Back in 1999, I wrote a macro for generating a cobbled street.
> I have now rewritten it, to enable it to be traced on a heightfield or an
> isosurface. Three patterns are available (see images).
> The macro is posted in p.b.u. under subject: Cobbled street.
> Enjoy!!
>
> Thomas
>
>
>
just playing, can you try pattern 2, R=0.333, Crack=0.03
result looks slightly weird ? i was sort of expecting a brick wall
laid out flat
have you any suggested ranges for the various values ?
stephen
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"stephen parkinson" <ste### [at] zmemw16demoncouk> schreef in bericht
news:40a51578$1@news.povray.org...
> just playing, can you try pattern 2, R=0.333, Crack=0.03
>
> result looks slightly weird ? i was sort of expecting a brick wall
> laid out flat
>
> have you any suggested ranges for the various values ?
>
I have not really worked out a range of values. It is trial and error I
guess. In your example, the main culprit is Crack which draws the stones
apart. In combination with the size of the stones (determined by N), the
result will be more or less acceptable. In any case, keep Crack fairly low.
There are, obviously, some draw backs to the method I used <sigh>, but
overall, avoiding weird cases, works pretty well.
Thomas
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