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With this level of JPEG compression, I'm hard pressed to tell this apart
from a photograph.
Nice one.
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> Don't worry, it looks *very* nice.
If I have one criticism it's that the cobbles appear to have a diagnoal
striation all aligned in the same direction.
I can't tell if it's deliberate or an artefact, but it shouldn't (IMHO) be
there.
Ray
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I believe I'm doing what you're saying... the problem is that I can't
use neither reflection nor specular settings for the finish, as these
act on the whole patch, even those areas that are transparent... I don't
know if there is an easy workaround for this.
Or perhaps there is a way to give values to the specular using an image map?
Fernando
Jim Charter wrote:
> Fernando G. del Cueto wrote:
>
>> Thanks Jim.
>>
>> The problem with the leaf is that I'm using a bicubic patch with an
>> image/bump map of the leaf on it, with alpha channel for transparency.
>> When I put some positive specular, the whole square patch shows up...
>>
>> Therefore I think I need to make it look more decayed perhaps...
>>
>> Fernando
>>
>>
>>
>> Jim Charter wrote:
>>
>>> Fernando G. del Cueto wrote:
>>>
>>> Very nice. Yes cobble stones tug at me too. These are great. Maybe
>>> it's the finish on the leaf that doesn't quite read for me? Perhaps
>>> either a little more gloss ormore apparent decay? Go one direction
>>> or the other?
>
> No you can do what you want you need to use the image_pattern with a b/w
> profile or mask of the leaf as the image source. You make two textures
> which duplicate the pigment and bump references but which differ in
> finish and transparency.
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Ray Bellis wrote:
>>Don't worry, it looks *very* nice.
>
>
> If I have one criticism it's that the cobbles appear to have a diagnoal
> striation all aligned in the same direction.
>
> I can't tell if it's deliberate or an artefact, but it shouldn't (IMHO) be
> there.
>
> Ray
You're a very perceptive person. I actually tried to diminish them with
postprocessing. In the unprocessed image, they are very noticeable. I
have to find the correct setting for the image map for the edges to be
not visible when tiling it.
Fernando.
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Thanks for the compliment! The JPEG compression was set rather high, IIRC...
Fernando
Andrew the Orchid wrote:
> With this level of JPEG compression, I'm hard pressed to tell this apart
> from a photograph.
>
> Nice one.
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Hmmm Actually I could not reproduce your problem
I put runnable sdl and maps in p.b.scene-files
but the relevant sdl looked like this:
#local MyTex =
texture {
pigment {
image_map {
tga "im_oak.tga"
}
}
normal {
bump_map {
tga "bm_oak.tga" bump_size 4
}
}
finish {
diffuse .7
specular .5
roughness .1
reflection 0
}
}
bicubic_patch {
type 1
flatness 0.1
u_steps 3
v_steps 3
<0, 1, 3> <1, 1, 3> <2, 1, 3> <3, 1, 3>
<0, 1, 2> <1, 1, 2> <2, 1, 2> <3, 1, 2>
<0, 1, 1> <1, 1, 1> <2, 1, 1> <3, 1, 1>
<0, 1, 0> <1, 1, 0> <2, 1, 0> <3, 1, 0>
texture {
image_pattern {
tga "ip_oak.tga" use_alpha
}
texture_map {
[0
pigment { rgb 1 transmit 1 }
finish {
diffuse 0
specular 0
reflection 0
ambient 0
}
]
[1
MyTex
]
}
scale 3
rotate x*90
}
Post a reply to this message
Attachments:
Download '001.jpg' (37 KB)
Preview of image '001.jpg'
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"Fernando G. del Cueto" <fcu### [at] yahoo com> schreef in bericht
news:422f4872$1@news.povray.org...
> Actually, in my original plan, I wanted to make puddles of water, but I
> didn't like my first results. I'll try to continue playing with the
> scene, but it's difficult to find free time!
>
> I love cobbled streets, I'm happy that you liked it.
>
<free ad> Do you know my cobblestreet macro, Fernando? I posted it last year
in p.b.s-f. Cobbles can be traced on a heightfield...
Thomas
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From: Thomas de Groot
Subject: Re: Leaf and cobbled street - update
Date: 11 Mar 2005 03:13:36
Message: <42315330@news.povray.org>
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"regdo" <reg### [at] wanadoofr> schreef in bericht
news:422f59a7@news.povray.org...
But the leaf definitely has
> a little disturbing something.
> Very good work.
> Regis.
Perhaps rotating the leaf around the vertical axis a bit (and a bit about
one of the horizontal ones) will help. It seems now aligned with the
cobbles.
Thomas
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Thanks for the info, I'll try to take a look at it as soon as I find
some free time :)
Thanks,
Fernando.
Thomas de Groot wrote:
> "Fernando G. del Cueto" <fcu### [at] yahoocom> schreef in bericht
> news:422f4872$1@news.povray.org...
>
>>Actually, in my original plan, I wanted to make puddles of water, but I
>>didn't like my first results. I'll try to continue playing with the
>>scene, but it's difficult to find free time!
>>
>>I love cobbled streets, I'm happy that you liked it.
>>
>
>
> <free ad> Do you know my cobblestreet macro, Fernando? I posted it last year
> in p.b.s-f. Cobbles can be traced on a heightfield...
>
> Thomas
>
>
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Interesting... thanks!!! I'll definitely try it,
Fernando.
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