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> "Robert McGregor"<rob### [at] mcgregorfineart com> schreef in bericht
> news:web.4d8e3a38d16f200e94d713cc0@news.povray.org...
>> Wow, I can really appreciate all the time you've put into the modelling,
>> and
>> matching up all the details in the scene assembly. A couple of things that
>> I
>> think would bring it closer to the original would include:
>
> Thank you indeed Robert :-)
>
>>
>> Use an image_pattern or pigment_pattern as a specularity/reflection mask
>> for the
>> pavement to break up the highlights more, to show variation of wetness
>> areas;
>> maybe with the (I'm assuming) height_field just a bit more jagged or
>> exaggerated
>> to show that the pavers are not all the same height.
>
> The pavement is made of individual stones (some 20k+ of them) using my
> Cobblestone macro. They are aligned on an irregular surface (could be
> increased some more) and have some irregularities in their placement. Each
> stone has its own random texture variation of course. So, I am not sure how
> to implement your suggestion here, but I shall think about it.
>
It's an old neibourhood. That street pavement is probably well over 70
years old, it have seen both WWI and WWII.
In the photo, the cobble stones are well worn and rounded. Your's looks
as if they are new and freshly layed.
Some are obviously brocken and are concave.
It also looks like some may be missing and the resulting hole filled
with gravel or sand.
Alain
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"Alain" <aze### [at] qwertyorg> schreef in bericht
news:4d8f7ecc$1@news.povray.org...
> It's an old neibourhood. That street pavement is probably well over 70
> years old, it have seen both WWI and WWII.
Absolutely.
>
> In the photo, the cobble stones are well worn and rounded. Your's looks as
> if they are new and freshly layed.
> Some are obviously brocken and are concave.
> It also looks like some may be missing and the resulting hole filled with
> gravel or sand.
Yes indeed. This should be the next implementation of my macro... Not sure
however if I can get that finished for the TC-RTC deadline, but certainly
worth the effort.
Thomas
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"Nekar Xenos" <nek### [at] gmailcom> schreef in bericht
news:op.vs0ao1i0ufxv4h@xena...
> I'm sure this will be corrected if you remove the spherical media at the
> lights and use the method I described earlier in conjunction with
> spotlights.
And get better halos? Remind me where you described this, I seem to have
forgotten... :-(
Thomas
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"Stephen" <mcavoys_at@aoldotcom> schreef in bericht
news:4d8eeda4@news.povray.org...
Yes, I can undestand that. The present street is not in the center of town
but probably more on the periphery. Interestingly, while the overall aspect
is rather downtrod, there still is a lawyer's office here: did you see the
telltale oval shield above the entrance at right? I found that an
interesting idea when I discovered (and remembered) what it represented
exactly.
> Great idea but I think it should be less subtle. Why not bring Cathy
> nearer the camera?
Yes, I probably should.
>
> Thanks, Now I will have to cut some more paper.
> I do like the idea of shared universes.
I agree. Looking forward to it :-)
Thomas
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On Mon, 28 Mar 2011 08:58:26 +0200, Thomas de Groot
<tDOTdegroot@interdotnlanotherdotnet> wrote:
>
> "Nekar Xenos" <nek### [at] gmailcom> schreef in bericht
> news:op.vs0ao1i0ufxv4h@xena...
>> I'm sure this will be corrected if you remove the spherical media at the
>> lights and use the method I described earlier in conjunction with
>> spotlights.
>
> And get better halos? Remind me where you described this, I seem to have
> forgotten... :-(
>
I think that if you remove your emissive halos and put spotlights there as
well as the scattering media over the whole scene it should work.
Light attenuation and media interaction should also be enabled. This works
for light shafts, so it should work for halos.
--
-Nekar Xenos-
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On Mon, 28 Mar 2011 08:58:26 +0200, Thomas de Groot
<tDOTdegroot@interdotnlanotherdotnet> wrote:
>
> "Nekar Xenos" <nek### [at] gmailcom> schreef in bericht
> news:op.vs0ao1i0ufxv4h@xena...
>> I'm sure this will be corrected if you remove the spherical media at the
>> lights and use the method I described earlier in conjunction with
>> spotlights.
>
> And get better halos? Remind me where you described this, I seem to have
> forgotten... :-(
>
> Thomas
>
>
I played a bit with media1.pov to get the effect:
///////////////begin code////////////////////////
// Persistence of Vision Raytracer Scene Description File
// File: media1.pov
// Author:
// Description:
// Participating media environment with spotlights.
//
// -w320 -h240
// -w800 -h600 +a0.3
//
//*******************************************
#version 3.6;
global_settings {assumed_gamma 1.0}
//
// The camera.
//
camera {
location <10, 6, -20>
direction <0, 0, 1.5>
look_at <0, 4, 0>
}
//
// Add media.
//
media {
scattering { 1, rgb 0.03}
intervals 1
samples 5
method 3
}
//
// Light source not interacting with the atmosphere.
//
/*
light_source { <0, 15, 0> color rgb 0.7
media_interaction off
shadowless
} */
//
// Spotlight
//
#declare Intensity = 2;
light_source {
<0, 9, -5> color rgb 2
spotlight
point_at <0, 5, 0>
radius 45
falloff 60
tightness 1
fade_distance 5
fade_power 2
media_attenuation on
}
//
// Room.
//
box { <-20, 0, -20>, <20, 20, 20>
pigment { rgb 1 }
finish { ambient 0.2 diffuse 0.5 }
hollow
}
//////////End code///////////////////
--
-Nekar Xenos-
Post a reply to this message
Attachments:
Download 'mediatest.png' (5 KB)
Preview of image 'mediatest.png'
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On Mon, 28 Mar 2011 08:56:12 +0200, Thomas de Groot
<tDOTdegroot@interdotnlanotherdotnet> wrote:
>> In the photo, the cobble stones are well worn and rounded. Your's looks
>> as
>> if they are new and freshly layed.
>> Some are obviously brocken and are concave.
>> It also looks like some may be missing and the resulting hole filled
>> with
>> gravel or sand.
>
> Yes indeed. This should be the next implementation of my macro... Not
> sure
> however if I can get that finished for the TC-RTC deadline, but certainly
> worth the effort.
>
I posted the wall macro I used in my sunflower scene on
povray.text.scene-files just in case you want to play around with it...
--
-Nekar Xenos-
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On 28/03/2011 8:06 AM, Thomas de Groot wrote:
> "Stephen"<mcavoys_at@aoldotcom> schreef in bericht
> news:4d8eeda4@news.povray.org...
>
> Yes, I can undestand that. The present street is not in the center of town
> but probably more on the periphery. Interestingly, while the overall aspect
> is rather downtrod, there still is a lawyer's office here: did you see the
> telltale oval shield above the entrance at right? I found that an
> interesting idea when I discovered (and remembered) what it represented
> exactly.
>
I saw the sign but did not realise the significance. I would have
expected the three balls of a pawnbroker in this district. ;-)
I actually prefer your sky to that of the photograph.
>> Great idea but I think it should be less subtle. Why not bring Cathy
>> nearer the camera?
>
> Yes, I probably should.
>
But you might not. :-P
>>
>> Thanks, Now I will have to cut some more paper.
>> I do like the idea of shared universes.
>
> I agree. Looking forward to it :-)
>
There is not much to see at the moment as your image is not very
contrast-y and doesn't show up well in the red light of the dark room.
When I've added a sink I'll be able to have some prints up to dry.
What ever you do please don't change the aspect ratio as it took me all
of Sunday morning to change the aspect ratio of the enlarger image and
prints. I was having a blond day.
--
Regards
Stephen
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> "Alain"<aze### [at] qwertyorg> schreef in bericht
> news:4d8f7ecc$1@news.povray.org...
>> It's an old neibourhood. That street pavement is probably well over 70
>> years old, it have seen both WWI and WWII.
>
> Absolutely.
>
>>
>> In the photo, the cobble stones are well worn and rounded. Your's looks as
>> if they are new and freshly layed.
>> Some are obviously brocken and are concave.
>> It also looks like some may be missing and the resulting hole filled with
>> gravel or sand.
>
> Yes indeed. This should be the next implementation of my macro... Not sure
> however if I can get that finished for the TC-RTC deadline, but certainly
> worth the effort.
>
> Thomas
>
>
The first thing to do would be to alter the mesh used for the
cobblestones for one that is more rounded. It may have a "broken"
underside. You then can use a random stream to verticaly flip some of them.
Then, also with a random stream, "forget" some.
Alain
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"Alain" <aze### [at] qwertyorg> schreef in bericht
news:4d90db27@news.povray.org...
>
> The first thing to do would be to alter the mesh used for the cobblestones
> for one that is more rounded. It may have a "broken" underside. You then
> can use a random stream to verticaly flip some of them.
> Then, also with a random stream, "forget" some.
Yes, that is one of the implementations I had in mind indeed, even extended
to 6 different faces. For the time being, I tweaked the surface representing
the dirt between the stones a bit further and the effect is better now. And
I put some more irregularities on the surface of the cobbles.
Thomas
Post a reply to this message
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