planet

Gas Giant

sambrookjm — Tue, 07 Oct 2008 02:03:54 +0200

This script is nother in a series of planet makers. This one makes a banded gas giant. There can be anywhere from one to 20 bands in the planet. Each band is an equal height, and has Plasma noise rendered in it. Each layer is then motion blurred. The result is then mapped onto a sphere, and gaussian blurred to make the edges nice and fuzzy. The resulting planet can also be rotated to any angle, and the saturation of the image can be changed to make the colors either more pale (for more realistic looking images) or more vivid (for the cool factor.) The higher value noise you use, the more grey the planet will turn out. Between one and four seems to be a good number.
The final size of the image can be anywhere from 300x300 to 3000x3000, and this script works with Gimp 2.6.0

Planetary Ring System - Updated for Gimp 2.6

sambrookjm — Sat, 20 Sep 2008 04:00:37 +0200

This script makes a ring system that you can add to a picture of a planet, and was adapted from a Photoshop script. This script is updated for GIMP v2.6
The ring system can be any size from 300x300 to 3000x3000, and can be tilted to any angle. The whirl-and-pinch portion of the script is time consuming, but using at least 8 iterations make the rings look very nice. The thickness of the rings can be controlled using the inner and outer ring ratio values in the script. The closer these two values are together, the narrower the ring.
After the rings are rotated, the image is autocropped to make it as small as possible. There is an option to automatically colorize the rings, but I usually find that it's best if you do that manually after the script has finished running.
If you do paste this into a picture of a planet, set the layer mode to Screen. You can remove the portion of the ring that would be behind the planet by making layer with the planet active, and choosing Alpha to Selection. Then activate the layer that contains the ring and erase the portion of the ring in back of the planet using either the eraser tool (simple but time consuming) or a marquee tool set to "Intersect with current selection" and cutting and pasting.
I've also attached a small picture of what the rings look like around a blue planet. Hope you like this one...

Make Your Own Planet - Script of MarvinX's Tutorial - Updated for Gimp 2.6

sambrookjm — Fri, 15 Aug 2008 05:10:58 +0200

This script automates many of the steps in MarvinX's fantastic "Make a Planet" tutorial, with a couple of added features. There is an atmospheric haze around the planet, and there are stars on the background layer. This script does not do the IWarp step. I leave that to the individual user to make wherever they want.. Everything else is in here.
After the script is done running, you can manually adjust the hue and saturation to get the planet the color you would like. There is also an option to make the planet more earth-like (using the Land and Sea gradient on the Clouds Layer.) The sun shadow is also optional.
Enjoy!

Planet Render

Rore — Tue, 01 Jan 2008 15:42:37 +0100

Creates a planet lit on one side, with some kind of atmosphere glow. The size and color of the planet as well as the angle for the light can be set.
An example tutorial can be found here.

Version 1-2.scm is for GIMP 2.4 and 2.6*
Version 1-1.scm is for GIMP 2.2

* please note that on 2.6, it is in the "File > Create > Misc" menu