
 
 
Written by
devvv (09 Dec 2007 05:58 PM) 
Translated to English by
Paraknight 
Updated by Hammer
 
Video Help
  - 
  Like some 
  others, this tutorial is an implementation of an existing Photoshop tutorial.
  
  Create a new image (700px * 700px) with a black background color.
  
  
                    
  click to 
  enlarge
   
  - 
  Create a new layer - Click CTRL - L to open the 
  layers dialog box. In the lower left click the "Create a new layer button". 
  Make sure to set the layer to 700 x 700 and select "Transparency" at the 
  bottom.                               
                  
  - 
  Click 
  Download Picture, 
  open the JPG and copy the cracked soil into GIMP.  At the top click 
  "Layer" and the "Anchor Layer."
  
  
  
  
  click to 
  enlarge
   
  - 
  Now, stretch 
  the active layer on a ball: Go to Filters / Map / Map object and select 
  "sphere". See the settings in the picture below. In the "light" tab select: No 
  light.
  
  
  click to 
  enlarge
   
  - 
  Invert the 
  colors (Color / Invert). You will get a blue and white sphere:
  
  
  click to 
  enlarge
   
  - 
  We will now 
  add the exploding rays. For this we first need the sphere streched on the 
  layer: Filters / Distorts / Polar coords. Disable the bottom-right checkbox 
  "To Polar". Click OK. 
  
  Then go to Image / Transform / Rotate 90° CW.
  
  
  click to 
  enlarge
   
  - 
  Click Filters 
  / Distorts / Wind with the values:
  
  Wind
  Direction: Right
  Edge affected: Leading
  Threshold: 5
  Strength: 37
  
  Use the filter again by pressing CTRL+F.
  
  
  click to 
  enlarge
   
  - 
  Now we must 
  undo the stretching from before to get our sphere:
  
  - Turn the Layer by selecting Layer / Transform / 90° CCW. It should now be on 
  the top side. 
  - Now select Filters / Distorts / Polar coords. Check the box for "To Polar" 
  again. 
  
  
  click to 
  enlarge
   
  - 
  Now it looks 
  quite cool. 
  
  Select the Blend 
  tool. Search for the Incandescent gradient as seen on the picture.
  
  
  click to 
  enlarge
   
  - 
  Turn it around 
  and go to  Colors / Map / Gradient Map and you have your exploding 
  planet!
  
  Optionally, you could duplicate the planet layer. Soften this layer with the 
  value 11, turn the transparency of the layer to 65% and change the layer mode 
  to "screen" or "color". Thus, it reached a little more color intensity and 
  softer transitions. Have fun with it.
  
  
  click to 
  enlarge