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Angel Skin release No. 1 (July 22, 2019) by Jamie Michelle ( https://github.com/Jamie-Michelle ). Angel Skin files released under the GNU General Public License, Version 2.
Angel Skin originally created Feb. 21, 2017. These instructions originally created Jan. 16, 2019.
WARNING: Deploy this eye-candy safely. End-user assumes responsibility for color-induced catatonic states.
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Angel Skin Instructions
Step 1:
Used GIMP 2.10.8 to create a 1*24 pixels image with the following colors in hexadecimal:
ff0000
ff3f00
ff7f00
ffbf00
ffff00
bfff00
7fff00
3fff00
00ff00
00ff3f
00ff7f
00ffbf
00ffff
00bfff
007fff
003fff
0000ff
3f00ff
7f00ff
bf00ff
ff00ff
ff00bf
ff007f
ff003f
24-colors.png
Step 2:
Used GIMP to create 1*72 pixels image with three instances of '24-colors.png' pasted end-to-end
24-colors-1x72.png
Step 3:
Used ImageMagick 7.0.8.21 'convert' program in thus manner:
$ convert 24-colors-1x72.png -filter Lagrange -resize 1x3264\! 24-colors-1x72-Lagrange-1x3264.png
Step 4:
From '24-colors-1x72-Lagrange-1x3264.png', cut out the middle 1088 pixels with GIMP
24-colors-1x72-Lagrange-1x1088.png
Step 5:
Used GIMP to scale '24-colors-1x72-Lagrange-1x1088.png' to 1920*1088 pixels with "None" as the interpolation
Rainbow-Lagrange-1920x1088.png
Step 6:
With POV-Ray 3.7.0.8:
$ povray sphere-part.pov Width=2048 Height=2048 Antialias=On Antialias_Threshold=0
sphere-part.png
Step 7:
Used GIMP to cut out the middle 832*832 pixels of 'sphere-part.png'
sphere-part-832.png
Step 8:
Used GIMP to increase the contrast +46
sphere-part-832-contrast+46.png
Step 9:
Used GIMP to scale 'sphere-part-832-contrast+46.png' to 32*32 pixels with "Cubic" as the interpolation (actually, decimation in this case)
sphere-part-32-contrast+46.png
Step 10:
Used Gimp to non-rotatively and non-mirroringly tile a 1920*1088 pixels canvas with 'sphere-part-32-contrast+46.png'
sphere-part-32-contrast+46-1920x1088.png
Step 11:
Used GIMP to layer 'Rainbow-Lagrange-1920x1088.png' and 'sphere-part-32-contrast+46-1920x1088.png' together with 50.0% opacity using Mode "Normal (legacy)"
Rainbowy-Angel-Skin-1920x1088.png
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