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09 Dec 2007 05:58 PM, by devvv (Bernhard Stockmann), translated to English by Paraknight

Exploding Planet

Various special effects are just there to get to know some techniques that you might need once. The result of this tutorial will probably not be further used, but it still looks cool ;)

This article has been written using GIMP 2.4. It's divided into 9 steps and takes about 15 min to complete for an average user. 49464 times read so far. Category: Special FX, required skill: 3 of 5

34 comments have been posted so far.

Available in other languages:

Files you need if you try this tutorial:

  1. 1
    Like some others, this tutorial is an implementation of an existing Photoshop tutorial.

    Create a new image (700px * 700px) with a black background colour.
    Screenshot of step 1
    Click to enlarge
  2. 2
    Download the attachment to this tutorial (right), open the JPG and copy the cracked soil (ctrl+c) into your new GIMP-File onto a new layer. Press CRTL+T to transform and type in 700x700 pixels. Now move the layer into the middle, so that everything can be seen.

    Optional: To achieve an exact positioning, you can also use the alignment tool. Click the tool, click on the layer with the cracked soil. Now go to: "Relative to:". Then click the icon for the horizontal and vertical middle each once - your layer should now exactly fit in the size of the image!
    Screenshot of step 2
    Click to enlarge
  3. 3
    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.
    Screenshot of step 3
    Click to enlarge
  4. 4
    Invert the colors (Color / Invert). You will get a blue and white sphere:
    Screenshot of step 4
    Click to enlarge
  5. 5
    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.
    Screenshot of step 5
    Click to enlarge
  6. 6
    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.
    Screenshot of step 6
    Click to enlarge
  7. 7
    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.
    Screenshot of step 7
    Click to enlarge
  8. 8
    Then it looks quite cool. Take the Select Eliptical Regions tool (Key E) make a selction around the planet - invert this and cut the white edge away.

    After that go to Select / None to make the existin selection dissappear.

    Press CRTL+B to make the tool window appear - then L to activate the Gradient tool. Search for the gradient seen on the picture.
    Screenshot of step 8
    Click to enlarge
  9. 9
    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.
    Screenshot of step 9
    Click to enlarge

This article is licensed under the following license: Attribution-Noncommercial 3.0 Austria

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Comments

Post your own comments, questions or hints here. The author and other users will see your posting and can reply to it. Of course, you can also ask in the chat.

Comments are chronologically arranged.

  1. http://www.gimpusers.com/tutorials/exploding-planet.html Sun 09 Dec 2007 06:27:51 PM CET redforce, 09 Dec 2007 06:27 PM

    Thanks to Paraknight for translating this tutorial from German to English!

  2. http://www.gimpusers.com/tutorials/exploding-planet.html Wed 12 Dec 2007 06:30:03 PM CET LukasT, 12 Dec 2007 06:30 PM

    I just love this site :) Cool tutorial

  3. http://www.gimpusers.com/tutorials/exploding-planet.html Fri 14 Dec 2007 11:07:14 AM CET Justine, 14 Dec 2007 11:07 AM

    How to make the screen black?? lols

  4. http://www.gimpusers.com/tutorials/exploding-planet.html Sat 15 Dec 2007 08:27:43 AM CET lolzlolz, 15 Dec 2007 08:27 AM

    there's no gradient that matches that color, so i have a weird result that doesn't have the same color,
    any ideas?
    thanks


    Click to enlarge

  5. http://www.gimpusers.com/tutorials/exploding-planet.html Fri 21 Dec 2007 01:53:16 AM CET lolzlolz, 21 Dec 2007 01:53 AM

    nvm working now

  6. http://www.gimpusers.com/tutorials/exploding-planet.html Thu 27 Dec 2007 08:14:26 PM CET backdrop001, 27 Dec 2007 08:14 PM

    I'd actually would like to know how to make that soil pic you had us download, that would be perfect for something i'm trying to make in gimp, is there a tutorial for that?

  7. http://www.gimpusers.com/tutorials/exploding-planet.html Thu 27 Dec 2007 10:21:13 PM CET lexor, 27 Dec 2007 10:21 PM

    he didn't make it, he found it online lol

  8. http://www.gimpusers.com/tutorials/exploding-planet.html Sat 29 Dec 2007 08:01:54 PM CET Mike, 29 Dec 2007 08:01 PM

    My mapping comes out ovalish... not a cirlce.

  9. http://www.gimpusers.com/tutorials/exploding-planet.html Sun 30 Dec 2007 02:30:09 PM CET devvv, 30 Dec 2007 02:30 PM

    the image needs to be square, and in step 2 make sure the layer that contains the soil is also exactly square. you can try Layer / Layer to image size.

  10. http://www.gimpusers.com/tutorials/exploding-planet.html Sat 19 Jan 2008 11:04:34 AM CET Koantig, 19 Jan 2008 11:04 AM

    Cool stuff. In step 6, the direction of the wind should be 'right' not 'left' though.

  11. http://www.gimpusers.com/tutorials/exploding-planet.html Sat 19 Jan 2008 04:16:08 PM CET lolzlolz, 19 Jan 2008 04:16 PM

    no its supposed to go right i think
    maybe not

  12. http://www.gimpusers.com/tutorials/exploding-planet.html Sat 19 Jan 2008 05:05:10 PM CET devvv, 19 Jan 2008 05:05 PM

    it was an error, i corrected it already ;) thanks!

  13. http://www.gimpusers.com/tutorials/exploding-planet.html Tue 22 Jan 2008 09:22:12 AM CET anuja, 22 Jan 2008 09:22 AM

    simple and very realistic effet.

  14. http://www.gimpusers.com/tutorials/exploding-planet.html Fri 15 Feb 2008 02:44:09 PM CET Ztoph, 15 Feb 2008 02:44 PM

    Can U do this on a human, or another object??

  15. http://www.gimpusers.com/tutorials/exploding-planet.html Wed 20 Feb 2008 03:58:53 PM CET Arbiter, 20 Feb 2008 03:58 PM

    With the last step. There is no Map gradient option in gimp 2.4
    What do you think could replace it.

  16. http://www.gimpusers.com/tutorials/exploding-planet.html Wed 20 Feb 2008 05:00:02 PM CET devvv, 20 Feb 2008 05:00 PM

    i've corrected it! thanks. gradient map is found in the base colors menu not in filters / colors.

    Colors / Map / Map gradient

  17. http://www.gimpusers.com/tutorials/exploding-planet.html Sun 24 Feb 2008 10:35:19 PM CET paulseph, 24 Feb 2008 10:35 PM

    I found that that last invert on step 8 is not necessary, in fact the result of that made it look like a weird dark red cracked ball w/o the exploding effect.

  18. http://www.gimpusers.com/tutorials/exploding-planet.html Sun 24 Feb 2008 10:36:39 PM CET paulseph, 24 Feb 2008 10:36 PM

    similar to lolzlolz below

  19. http://www.gimpusers.com/tutorials/exploding-planet.html Sun 24 Feb 2008 10:37:12 PM CET paulseph, 24 Feb 2008 10:37 PM

    but other than that this rocks, im very pleased with the result thanks :)

  20. http://www.gimpusers.com/tutorials/exploding-planet.html Tue 18 Mar 2008 08:02:30 PM CET matt, 18 Mar 2008 08:02 PM

    How do you soften in gimp 2.2

  21. http://www.gimpusers.com/tutorials/exploding-planet.html Wed 21 May 2008 01:57:04 PM CEST amy, 21 May 2008 01:57 PM

    "Filters / Distorts / Polar coords. Disable the bottom-right checkbox "To Polar". Click OK."

    this box was already checked for me but i tried it anyway and when i clicked ok it just gave me a weird curved semi circle

  22. http://www.gimpusers.com/tutorials/exploding-planet.html Wed 06 Aug 2008 08:12:50 AM CEST Zeratul554, 06 Aug 2008 08:12 AM

    i loved this tutorial and used it on my homepage i also used a bluish gradient it looks real cool


    Click to enlarge

  23. http://www.gimpusers.com/tutorials/exploding-planet.html Sat 09 Aug 2008 09:17:07 PM CEST Rafi, 09 Aug 2008 09:17 PM

    Nice tut........keep em commin

  24. http://www.gimpusers.com/tutorials/exploding-planet.html Fri 26 Dec 2008 02:25:46 PM CET FELIXnx01, 26 Dec 2008 02:25 PM

    Can I translate this tutorial for an italian gimp based forum?

  25. http://www.gimpusers.com/tutorials/exploding-planet.html Fri 26 Dec 2008 02:51:15 PM CET redforce, 26 Dec 2008 02:51 PM

    FELIXnx01, of course, please just mention the author's name (devvv) and a link to this page, according to the license. If you tell us the URL of the translated tutorial, I will add it to the "Available in other languages" list.

  26. http://www.gimpusers.com/tutorials/exploding-planet.html Sat 27 Dec 2008 01:51:29 PM CET FELIXnx01, 27 Dec 2008 01:51 PM

    Thank you very much. This is the first tutorial I posted for a forum and there where some problems because I haven't posted the credits. I'm going to insert the autothor's name and the link to this tutorial. The URL of the translated tutorial is this:
    http://gimpworld.forumfree.net/?t=35345596&st=0#entry291808448
    The Tutorial is an image but don't worry, there's a link to the homepage of this site.
    Thank you very much. If there are some problems please write and I'll do my possible.
    "Long life and prosper!"

  27. http://www.gimpusers.com/tutorials/exploding-planet.html Mon 09 Mar 2009 10:53:58 PM CET RikarduJ, 09 Mar 2009 10:53 PM

    Hm...in step 2 i press Ctrl+T and i can't do anything that says and i even search for gimp tools for it (im a begginer)
    Please help me!

  28. http://www.gimpusers.com/tutorials/exploding-planet.html Wed 18 Mar 2009 06:03:38 AM CET xandercm, 18 Mar 2009 06:03 AM

    Great tutorial! I combined this with the Star field tutorial and modified the planet to a mirrorball.


    Click to enlarge

  29. http://www.gimpusers.com/tutorials/exploding-planet.html Tue 30 Jun 2009 01:36:13 PM CEST Breil, 30 Jun 2009 01:36 PM

    Mine's not a sphere,instead it's a chunky planet and I do this in GIMP v. 2.6.6(the 2008 version)

  30. http://www.gimpusers.com/tutorials/exploding-planet.html Wed 29 Jul 2009 04:11:48 PM CEST Darlingpresley, 29 Jul 2009 04:11 PM

    woaaahhhhhhh love it :)


    Click to enlarge

  31. http://www.gimpusers.com/tutorials/exploding-planet.html Sat 01 Aug 2009 12:53:56 AM CEST Shelby, 01 Aug 2009 12:53 AM

    At the end where it says:

    "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."

    How do you soften the layer with the value 11?

  32. http://www.gimpusers.com/tutorials/exploding-planet.html Sat 01 Aug 2009 01:22:12 AM CEST Shelby, 01 Aug 2009 01:22 AM

    I figured it out, when you do the coloring with color/map/gradient map you have to have the blend mode on burn not normal. at least thats what I did to get it to look darker. Before my planet was too bright and didnt look quite right.

  33. http://www.gimpusers.com/tutorials/exploding-planet.html Sat 01 Aug 2009 01:24:18 AM CEST Shelby, 01 Aug 2009 01:24 AM

    oh and that soften with value 11 thing I figured was a gaussian blur. i feel stupid now xD

  34. http://www.gimpusers.com/tutorials/exploding-planet.html Sat 01 Aug 2009 01:24:41 AM CEST Shelby, 01 Aug 2009 01:24 AM

    oh and that soften with value 11 thing I figured was a gaussian blur. i feel stupid now xD

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