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With thanks to And, a little playground when you have nothing better to
do :-)
/**********************************************************************************
Persistence of Vision Ray Tracer Scene Description File
File name : And_Pattern blend.pov
Version : 3.71
Description : Pattern blending of a photograph.
Date : 2 March 2018
Author : And
E-mail : in p.b.i. pattern blend (by And):
http://news.povray.org/povray.binaries.images/thread/%3Cweb.5a996d03fe35f84f1c2f7e850%40news.povray.org%3E/
See also:
http://news.povray.org/povray.binaries.images/thread/%3Cweb.5a996d03fe35f84f1c2f7e850%40news.povray.org%3E/?mtop=421077&moff=20
**********************************************************************************/
// Render settings 3.7 (right-click on a line below):
// Be sure to set the image width and height
// for glasses.jpg:
// +w1024 +h768 +a0.3 +am2 +bm2 +rp0 +bs8 +wt6
#version 3.71;
//#version unofficial patch 3.71; //UberPOV
#include "stdinc.inc"
#local Rad = off; // radiosity switch
global_settings {
assumed_gamma 1.0
max_trace_level 5
noise_generator 2
#if (Rad)
radiosity {
pretrace_start 0.08
pretrace_end 0.004
count 100, 1000
nearest_count 10, 5
error_bound 1
recursion_limit 1
low_error_factor 0.3
gray_threshold 0.0
minimum_reuse 0.015
maximum_reuse 0.1
brightness 1
adc_bailout 0.01/2
normal off
media off
always_sample off
//max_sample 1.0
}
#end
}
// ----------------------------------------
camera {
orthographic
location <0.0, 0.0, -10.0>
look_at <0.0, 0.0, 0.0>
right x*image_width
up y*image_height
angle 5.8*1
}
background {color rgb 1}
//==============================================================================================
// Controls:
#local Mono = off; // monochrome/polychrome switch
#local Gamma = 5; // play with this value for interesting results
#local Pattern = 1; // 1=crackle solid; 2=granite; 3=agate;
4=bumps; 5=quilted; 6=bozo;
#local N = 0.1; // use N <= 1.0
#local rotZ = 40; // rotation angle of the pattern around the z-axis
//==============================================================================================
// Load here your image:
#declare p_original =
pigment {
image_map {
jpeg "glasses.jpg" gamma Gamma
map_type 0
interpolate 2
}
}
//==============================================================================================
#if (Mono)
#declare p_modify =
pigment{
pigment_pattern{p_original}
pigment_map {
#for(i,0,255)
[i/255 #switch (Pattern)
#case(1)
crackle solid
#break #case(2)
granite
#break #case(3)
agate
#break #case(4)
bumps
#break #case(5)
quilted control0 0.5 control1 1
#break #case(6)
bozo
#end
scale (1/<image_width, image_height, 1>)*N
rotate <0,0, rotZ>
color_map {
[0.2+0.6*(1-pow(i/255,1/3)) rgbt<0,0,0,0.1>]
[0.2+0.6*(1-pow(i/255,1/3)) rgbt<0,0,0,0.9>]
}
]
#end
}
}
#else
#declare f_original =
function {pigment {p_original}}
#declare f_o_R = function {f_original (x,y,z).red}
#declare f_o_G = function {f_original (x,y,z).green}
#declare f_o_B = function {f_original (x,y,z).blue}
#declare f_modify =
pigment {
average
pigment_map {
[1 function {f_o_R (x,y,z)}
pigment_map {
#for (i, 0, 255)
[i/255 #switch (Pattern)
#case(1)
crackle solid
#break #case(2)
granite
#break #case(3)
agate
#break #case(4)
bumps
#break #case(5)
quilted control0 0.5 control1 1
#break #case(6)
bozo
#end
scale (1/<image_width, image_height, 1>)*N
rotate <0,0, rotZ>
color_map {
[0.2+0.6*(1-pow (i/255,1/3)) srgbt <0,0,0,0.1>]
[0.2+0.6*(1-pow (i/255,1/3)) srgbt <3,0,0,0.9>]
}
]
#end
}
]
[1 function {f_o_G (x,y,z)}
pigment_map {
#for (i, 0, 255)
[i/255 #switch (Pattern)
#case(1)
crackle solid
#break #case(2)
granite
#break #case(3)
agate
#break #case(4)
bumps
#break #case(5)
quilted control0 0.5 control1 1
#break #case(6)
bozo
#end
scale (1/<image_width, image_height, 1>)*N
rotate <0,0, rotZ>
color_map {
[0.2+0.6*(1-pow (i/255,1/3)) srgbt <0,0,0,0.1>]
[0.2+0.6*(1-pow (i/255,1/3)) srgbt <0,3,0,0.9>]
}
]
#end
}
]
[1 function {f_o_B (x,y,z)}
pigment_map {
#for (i, 0, 255)
[i/255 #switch (Pattern)
#case(1)
crackle solid
#break #case(2)
granite
#break #case(3)
agate
#break #case(4)
bumps
#break #case(5)
quilted control0 0.5 control1 1
#break #case(6)
bozo
#end
scale (1/<image_width, image_height, 1>)*N
rotate <0,0, rotZ>
color_map {
[0.2+0.6*(1-pow (i/255,1/3)) srgbt <0,0,0,0.1>]
[0.2+0.6*(1-pow (i/255,1/3)) srgbt <0,0,3,0.9>]
}
]
#end
}
]
}
}
#end
//==============================================================================================
plane {
z, 0
#if (Mono)
pigment {p_modify
#else
pigment {f_modify
#end
translate -0.5
scale <image_width, image_height, 1>
scale 0.001
}
finish {emission 1 diffuse 0}
no_shadow
}
//==============================================================================================
--
Thomas
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Thomas de Groot <tho### [at] degroot org> wrote:
> With thanks to And, a little playground when you have nothing better to
> do :-)
Thanks to you too, I had just started looking at that a few days ago and thought
I would try layering images to combine them. Didn't get far but on a whim I
changed to interpolate 3 for the input image and got an interesting result.
Reading the docs to refresh my memory on that bicubic interpolation it says
there could be a sharpening effect on certain color boundaries. So that probably
explains the peculiar outlines seen in these pattern blend renderings if
interpolate 3 is used.
Post a reply to this message
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Thomas de Groot <tho### [at] degrootorg> wrote:
> With thanks to And, a little playground when you have nothing better to
> do :-)
>
>
> /**********************************************************************************
> Persistence of Vision Ray Tracer Scene Description File
> File name : And_Pattern blend.pov
> Version : 3.71
> Description : Pattern blending of a photograph.
>
> Date : 2 March 2018
> Author : And
> E-mail : in p.b.i. pattern blend (by And):
>
>
http://news.povray.org/povray.binaries.images/thread/%3Cweb.5a996d03fe35f84f1c2f7e850%40news.povray.org%3E/
> See also:
>
>
http://news.povray.org/povray.binaries.images/thread/%3Cweb.5a996d03fe35f84f1c2f7e850%40news.povray.org%3E/?mtop=4210
77&moff=20
>
> **********************************************************************************/
>
> // Render settings 3.7 (right-click on a line below):
> // Be sure to set the image width and height
> // for glasses.jpg:
> // +w1024 +h768 +a0.3 +am2 +bm2 +rp0 +bs8 +wt6
>
> #version 3.71;
> //#version unofficial patch 3.71; //UberPOV
>
> #include "stdinc.inc"
>
> #local Rad = off; // radiosity switch
>
> global_settings {
> assumed_gamma 1.0
> max_trace_level 5
> noise_generator 2
> #if (Rad)
> radiosity {
> pretrace_start 0.08
> pretrace_end 0.004
> count 100, 1000
> nearest_count 10, 5
> error_bound 1
> recursion_limit 1
> low_error_factor 0.3
> gray_threshold 0.0
> minimum_reuse 0.015
> maximum_reuse 0.1
> brightness 1
>
> adc_bailout 0.01/2
> normal off
> media off
> always_sample off
> //max_sample 1.0
> }
> #end
> }
>
> // ----------------------------------------
> camera {
> orthographic
> location <0.0, 0.0, -10.0>
> look_at <0.0, 0.0, 0.0>
> right x*image_width
> up y*image_height
> angle 5.8*1
> }
>
> background {color rgb 1}
>
>
//==============================================================================================
> // Controls:
> #local Mono = off; // monochrome/polychrome switch
> #local Gamma = 5; // play with this value for interesting results
> #local Pattern = 1; // 1=crackle solid; 2=granite; 3=agate;
> 4=bumps; 5=quilted; 6=bozo;
> #local N = 0.1; // use N <= 1.0
> #local rotZ = 40; // rotation angle of the pattern around the z-axis
>
>
//==============================================================================================
> // Load here your image:
> #declare p_original =
> pigment {
> image_map {
> jpeg "glasses.jpg" gamma Gamma
> map_type 0
> interpolate 2
> }
> }
>
>
//==============================================================================================
> #if (Mono)
>
> #declare p_modify =
> pigment{
> pigment_pattern{p_original}
> pigment_map {
> #for(i,0,255)
> [i/255 #switch (Pattern)
> #case(1)
> crackle solid
> #break #case(2)
> granite
> #break #case(3)
> agate
> #break #case(4)
> bumps
> #break #case(5)
> quilted control0 0.5 control1 1
> #break #case(6)
> bozo
> #end
> scale (1/<image_width, image_height, 1>)*N
> rotate <0,0, rotZ>
> color_map {
> [0.2+0.6*(1-pow(i/255,1/3)) rgbt<0,0,0,0.1>]
> [0.2+0.6*(1-pow(i/255,1/3)) rgbt<0,0,0,0.9>]
> }
> ]
> #end
> }
> }
>
> #else
>
> #declare f_original =
> function {pigment {p_original}}
>
> #declare f_o_R = function {f_original (x,y,z).red}
> #declare f_o_G = function {f_original (x,y,z).green}
> #declare f_o_B = function {f_original (x,y,z).blue}
>
> #declare f_modify =
> pigment {
> average
> pigment_map {
> [1 function {f_o_R (x,y,z)}
> pigment_map {
> #for (i, 0, 255)
> [i/255 #switch (Pattern)
> #case(1)
> crackle solid
> #break #case(2)
> granite
> #break #case(3)
> agate
> #break #case(4)
> bumps
> #break #case(5)
> quilted control0 0.5 control1 1
> #break #case(6)
> bozo
> #end
> scale (1/<image_width, image_height, 1>)*N
> rotate <0,0, rotZ>
> color_map {
> [0.2+0.6*(1-pow (i/255,1/3)) srgbt <0,0,0,0.1>]
> [0.2+0.6*(1-pow (i/255,1/3)) srgbt <3,0,0,0.9>]
> }
> ]
> #end
> }
> ]
> [1 function {f_o_G (x,y,z)}
> pigment_map {
> #for (i, 0, 255)
> [i/255 #switch (Pattern)
> #case(1)
> crackle solid
> #break #case(2)
> granite
> #break #case(3)
> agate
> #break #case(4)
> bumps
> #break #case(5)
> quilted control0 0.5 control1 1
> #break #case(6)
> bozo
> #end
> scale (1/<image_width, image_height, 1>)*N
> rotate <0,0, rotZ>
> color_map {
> [0.2+0.6*(1-pow (i/255,1/3)) srgbt <0,0,0,0.1>]
> [0.2+0.6*(1-pow (i/255,1/3)) srgbt <0,3,0,0.9>]
> }
> ]
> #end
> }
> ]
> [1 function {f_o_B (x,y,z)}
> pigment_map {
> #for (i, 0, 255)
> [i/255 #switch (Pattern)
> #case(1)
> crackle solid
> #break #case(2)
> granite
> #break #case(3)
> agate
> #break #case(4)
> bumps
> #break #case(5)
> quilted control0 0.5 control1 1
> #break #case(6)
> bozo
> #end
> scale (1/<image_width, image_height, 1>)*N
> rotate <0,0, rotZ>
> color_map {
> [0.2+0.6*(1-pow (i/255,1/3)) srgbt <0,0,0,0.1>]
> [0.2+0.6*(1-pow (i/255,1/3)) srgbt <0,0,3,0.9>]
> }
> ]
> #end
> }
> ]
> }
> }
>
> #end
>
>
//==============================================================================================
> plane {
> z, 0
> #if (Mono)
> pigment {p_modify
> #else
> pigment {f_modify
> #end
> translate -0.5
> scale <image_width, image_height, 1>
> scale 0.001
> }
> finish {emission 1 diffuse 0}
> no_shadow
> }
>
>
//==============================================================================================
>
> --
> Thomas
Well, I didn't know you post an article here.
Post a reply to this message
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