Making a nice background in GIMP
Blender 3d tutorial
If you choose to so this tutorial please leave a comment. I would also very much like to see how it turned out for you so drop a link or send me a link to an image of what you did if you want to :)
To view the images in their original size, right click and choose show image.
I made my image with 1920x1080 dimensions
Ok, start gimp and make the background black (using the fill tool, unless it's already black)
Now press filters>render>nature>flame
Press the edit button inside the flame filter, then choose random in the dropdown box of different flame types. Then press the button random until you find a flame you like, then choose it and press ok.
Now create a new layer and use the gradient tool, choose the gradient that looks like a rainbow.
Now with the gradient tool, drag a straight line across the whole image(hold CTRL to keep the line straight)
Above the layers there is a button called "mode", click it and choose overlay.
And now you're done! You can work some more on it if you wish but this should be enough for a nice effect.
Please leave a comment and rate this tutorial.
If you wish you can download the XCF file and see if you can learn anything from it. http://dl.dropbox.com/u/1070700/gimp%20stuff/tuts/gimptut1.xcf
Heres the image I made during the tutorial.
Thank you for reading!