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First the original (a simple hourglass I had lying around).
--
jaime
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Attachments:
Download 'hourglass-01.jpg' (72 KB)
Preview of image 'hourglass-01.jpg'
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From: Jaime Vives Piqueres
Subject: Re: Experimental tonemapping tests
Date: 11 Apr 2016 11:03:42
Message: <570bbcce@news.povray.org>
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Vignetting + Noise:
#declare vignetting_amount=0.3;
#declare noise_amount=0.05;
#declare f_vignette=
function{
pigment{
spherical
color_map{
[vignetting_amount rgb 0]
[1 rgb 1]
}
}
}
tonemapping {
parameters { channel,x,y }
function(c,x,y)
{c*f_vignette(x-.5,y-.5,0).gray-f_granite(.1+x*image_width,y*image_width,0)*noise_amount+f_granite(.2+x*image_width,y*image_width,0)*noise_amount}
}
--
jaime
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Attachments:
Download 'hourglass-02-tonemapping-vignetting+noise.jpg' (97 KB)
Preview of image 'hourglass-02-tonemapping-vignetting+noise.jpg'
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From: Jaime Vives Piqueres
Subject: Re: Experimental tonemapping tests
Date: 11 Apr 2016 11:04:49
Message: <570bbd11@news.povray.org>
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Sepia:
#declare sepia_amount=0.7;
tonemapping {
parameters { red,green,blue}
function(r,g,b,x,y)
{r*(1-sepia_amount)+min(1,r*(.393/2.2)+g*(.769/2.2)+b*.189)*sepia_amount}
function(r,g,b,x,y)
{g*(1-sepia_amount)+min(1,r*(.349/2.2)+g*(.686/2.2)+b*.168)*sepia_amount}
function(r,g,b,x,y)
{b*(1-sepia_amount)+min(1,r*(.272/2.2)+g*(.534/2.2)+b*.131)*sepia_amount}
}
--
jaime
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Attachments:
Download 'hourglass-02-tonemapping-sepia.jpg' (77 KB)
Preview of image 'hourglass-02-tonemapping-sepia.jpg'
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From: Jaime Vives Piqueres
Subject: Re: Experimental tonemapping tests
Date: 11 Apr 2016 11:05:59
Message: <570bbd57@news.povray.org>
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Threshold:
#declare threshold_amount=.1;
tonemapping {
parameters {gray}
function(gr) {select(-threshold_amount+gr,0,1)}
}
--
jaime
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Attachments:
Download 'hourglass-02-tonemapping-threshold.jpg' (75 KB)
Preview of image 'hourglass-02-tonemapping-threshold.jpg'
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Jaime Vives Piqueres wrote on 11/04/2016 17.02:
> First the original (a simple hourglass I had lying around).
>
> --
> jaime
:-o
Great results!
Paolo
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From: Jaime Vives Piqueres
Subject: Re: Experimental tonemapping tests
Date: 11 Apr 2016 16:26:05
Message: <570c085d@news.povray.org>
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Old film via image_map:
#declare vintage_amount=0.9;
#declare f_old_film=
function{
pigment{
image_map{jpeg "old-film"}
}
}
tonemapping{
parameters{red,green,blue,x,y}
function(r,g,b,x,y){r*(1-vintage_amount)+r*f_old_film(x,y,0).red*vintage_amount}
function(r,g,b,x,y){g*(1-vintage_amount)+g*f_old_film(x,y,0).green*vintage_amount}
function(r,g,b,x,y){b*(1-vintage_amount)+b*f_old_film(x,y,0).blue*vintage_amount}
}
--
jaime
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Attachments:
Download 'hourglass-02-tonemapping-old-film-img2.jpg' (93 KB)
Preview of image 'hourglass-02-tonemapping-old-film-img2.jpg'
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El 11/04/16 a las 19:10, Paolo Gibellini escribió:
> :-o
> Great results!
Thanks, but you should thank clipka for such a great feature...
--
jaime
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Am 11.04.2016 um 22:26 schrieb Jaime Vives Piqueres:
> Old film via image_map:
Now *this* is seriously awesome!
Post a reply to this message
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Am 11.04.2016 um 22:27 schrieb Jaime Vives Piqueres:
> El 11/04/16 a las 19:10, Paolo Gibellini escribió:
>> :-o
>> Great results!
>
> Thanks, but you should thank clipka for such a great feature...
Let the art connaisseur praise the artist, and leave it up to the artist
to praise the brushmaker.
Everyone have fun & enjoy!
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On 4/11/2016 9:34 PM, clipka wrote:
> Am 11.04.2016 um 22:26 schrieb Jaime Vives Piqueres:
>> Old film via image_map:
>
> Now *this* is seriously awesome!
>
It is indeed. :)
--
Regards
Stephen
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