File:Algol-type variable binary star animation 2.gif
Algol-type_variable_binary_star_animation_2.gif (800 × 600 pixels, file size: 2.01 MB, MIME type: image/gif, looped, 99 frames, 15 s)
Captions
Captions
Summary
[edit]
| Description |
English: Algol-type variable. Two stars is eclipsing each other. Cooler, yellow star exlipses more its companion, because it has brighter surface due to higher temparature. |
| Date | |
| Source | Own work |
| Author | Merikanto |
Licensing
[edit]
- You are free:
- to share – to copy, distribute and transmit the work
- to remix – to adapt the work
- Under the following conditions:
- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
- share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
Additional info
[edit]
Povray src "x4.pov"
- declare Yellow =rgb <1,1,0>;
- declare White= rgb <1,1,1>;
- declare Black =rgb <0,0,0>;
- declare Red=rgb <1,0,0>;
- declare Orange=rgb <1,0.5,0>;
- declare YellowOrange=rgb <1,0.75,0>;
- declare YellowYellowOrange=rgb <1,0.825,0>;
- declare LightBlue=rgb <0.5,0.5,1>;
- declare DarkYellow=rgb <0.25,0.25,0>;
//#declare tauorig=
// DEBUG
//#declare taunolla=0;
- declare taunolla=clock+180;
- declare tau=radians(taunolla);
- declare tau2=radians(taunolla+180.0);
- declare ra=2;
- declare rb=2;
- declare ax = sin(tau)*ra+1;
- declare ay = cos(tau)*ra;
- declare bx = sin(tau2)*rb-1;
- declare by = cos(tau2)*rb;
- declare sax=ax*1;
- declare say=ay*1;
- declare sbx=bx*1;
- declare sby=by*1;
camera {
location <0,4,-20>
look_at <0,0,0>
angle 25
}
- declare S1 = sphere {
0, 1
pigment { color rgbf 1 }
hollow
interior {
media {
emission 2
method 3
intervals 1
samples 5, 5
// emission_type 2
// emission_extinction 2
density {
spherical
color_map {
[ 0.0 rgb 0.0 ]
[ 0.1 rgb <1.0, 0.0, 0.0> ]
[ 1.0 rgb <0.0, 1.0, 0.0> ]
}
}
}
media {
absorption 5
method 3
intervals 1
samples 5, 5
density {
spherical
color_map {
[ 0.0 rgb 0.0 ]
[ 0.1 rgb 0.39 ]
[ 1.0 rgb 0.5 ]
}
}
}
}
};
- declare S2 = sphere {
0, 1
pigment { color rgbf 1 }
hollow
interior {
media {
emission 2
method 3
intervals 1
samples 5, 5
density {
spherical
color_map {
[ 0.0 rgb 0.0 ]
[ 0.1 rgb <0.0, 0.0, 1.0> ]
[ 1.0 rgb <0.0, 1.0, 1.0> ]
}
}
}
media {
absorption 5
method 3
intervals 1
samples 5, 5
density {
spherical
color_map {
[ 0.0 rgb 0.0 ]
[ 0.1 rgb 0.39 ]
[ 1.0 rgb 0.5 ]
}
}
}
}
};
object {
S1
translate <sax,0,say>
}
object {
S2
translate <sbx,0,sby>
}
Povray "x4.ini"
- POV-Ray animation ini file
Antialias=Off
Antialias_Threshold=0.1
Antialias_Depth=2
Input_File_Name="x4.pov"
Initial_Frame=1
Final_Frame=99
Initial_Clock=0
Final_Clock=360
Cyclic_Animation=on
Pause_when_Done=off
Animation bash pov and imagemagick script
povray x4.ini
convert -delay 20 -loop 0 *.png algol_type_binary_animation_1.gif
Older animation src
Povray source code
- declare tau=radians(clock);
- declare tau2=radians(clock+180.0);
- declare ra=1.5;
- declare rb=1.5;
- declare ax = sin(tau)*ra+0.5;
- declare ay = cos(tau)*ra;
- declare bx = sin(tau2)*rb-0.5;
- declare by = cos(tau2)*rb;
- declare Orange=<1,0.5,0>;
- declare Yellow=<1,1,0>;
- declare White=<1,1,1>;
- declare Blue=<0.8,0.8,1>;
- macro convection_cells(c)
crackle
pigment_map{
[0.0 rgb c*0.2]
[0.2 rgb c]
[0.9 rgb c]
[1.0 rgb 1.0]
}
warp{turbulence 0.3}
- end
camera { location <0,15,-70> look_at 0 angle 5 }
sphere
{
0, 1
translate <ax,0,ay>
texture {
pigment {
crackle
pigment_map{
[0.0 rgb Orange]
[0.2 rgb Yellow]
[0.9 rgb Yellow]
[1.0 rgb 1.0]
}
warp{turbulence 0.3}
}
scale 0.05
}
finish {
ambient 0.7
diffuse 0.01
reflection 0.01
} // fin
/*
texture{
pigment{
ripples scale 0.1 turbulence 1.5
color_map {
[0.0 color Orange ]
[0.4 color Orange ]
[0.5 color Yellow ]
[1.0 color Yellow ]
} // cmap
} // pig
finish {
ambient 0.7
diffuse 0.01
reflection 0.01
} // fin
} // tex
*/
} // sphere
// halo 1
sphere
{
0, 1.3 hollow no_shadow
pigment {
rgbt 1 }
interior
{ media
{ emission 1/1
density
{ spherical density_map
{ [0 rgb 0][.5 rgb Yellow*.5][1 rgb 1.5]
}
}
samples 1,1 intervals 1 confidence .1 // quite fast settings
method 3
}
}
scale 1.3
translate <ax,0,ay>
}
sphere
{
0, 0.5
translate <bx,0,by>
texture {
pigment {
crackle
pigment_map{
[0.0 rgb Blue]
[0.2 rgb White]
[0.9 rgb White]
[1.0 rgb 1.0]
}
warp{turbulence 0.3}
}
scale 0.05
}
finish {
ambient 0.7
diffuse 0.01
reflection 0.01
} // fin
/*
texture{
pigment{
ripples scale 0.1 turbulence 1.5
color_map {
[0.0 color White ]
[0.4 color White ]
[0.5 color Blue ]
[1.0 color Blue ]
} // cmap
} // pig
finish {
ambient 1.0
diffuse 0.01
reflection 0.01
} // fin
} // tex
- /
} // sphere
sphere
{
0, 0.5 hollow no_shadow
pigment {
rgbt 1 }
interior
{ media
{ emission 1/1
density
{ spherical density_map
{ [0 rgb 0][.5 rgb Blue*.5][1 rgb 1.5]
}
}
samples 1,1 intervals 1 confidence .1 // quite fast settings
method 3
}
}
scale 1.2
translate <bx,0,by>
}
Povray ini file
- POV-Ray animation ini file
Antialias=Off
Antialias_Threshold=0.1
Antialias_Depth=2
Input_File_Name="n4.pov"
Initial_Frame=1
Final_Frame=72
Initial_Clock=0
Final_Clock=360
Cyclic_Animation=on
Pause_when_Done=off
Linux bash shell script
rm *.png
povray n4.ini
convert -delay 20 -loop 0 *.png algol_type_binary_animation_1.gif
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 14:29, 20 May 2019 | | 800 × 600 (2.01 MB) | Merikanto (talk | contribs) | New lookout |
| 18:16, 15 May 2019 |  | 800 × 600 (3.65 MB) | Merikanto (talk | contribs) | User created page with UploadWizard |
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