This GIMP (GNU) tutorial demonstrates how to create a Psychedelic Plasma Background.
You can quickly Undo a step at any time by pressing Ctrl then Z. Alternatively, click a previous Undo History snapshot - Windows then Dockable Dialogues then click Undo History. In addition, to Zoom in (or Zoom out) of your image; from the top menu, choose View then select a Zoom Tool from the subsequent drop-down list.
Ensure the Layers and the Undo History Palettes are visible, and then drag them into position over your workspace - (Windows then Dockable Dialogues - then click Layers and Undo History).
Launch GIMP & Organise Its Workspace & Palettes
Create a New (Transparent) Image, and set the following Width and Height dimensions; (File then New - Ctrl then N).
(Alternatively, select Height and Width dimensions of your choice).
Then from the top menu, choose Filters then choose Render then choose Clouds and then choose Plasma. And from the subsequent Plasma dialogue box, experiment with the settings, and then click OK.
Marking Randomise can produce interesting Plasma Clouds.
From the top menu, choose Filters then Enhance and then choose Unsharp Mask. From the subsequent Unsharp Mask dialogue box, experiment with the settings, and then click OK.
Congratulations, your Plasma Background is complete, and it is ready to incorporate into your artwork.
To save your Background, from the top menu, then File then Save As.
Wendi E. M. Scarth. Top of Page.