This GIMP (GNU) tutorial demonstrates how to create a Colourful Line Nova Explosion.
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.
Launch GIMP & Organise Its Workspace & Palettes
Create a New Image, and set the following settings, then click OK. (Ctrl then N).
Now, from the top menu, choose Filters then choose Render then choose Clouds, and then choose Plasma. Then click OK to the subsequent Plasma dialogue box.
From the top menu, choose Filters then choose Render then choose Line Nova. And from the subsequent Line Nova dialogue box, enter the following (default) settings, and then click OK.
To create extra impact, apply a Sharpening Filter of your choice - Filters then Enhance.
Congratulations, your colourful explosion is complete, and it is ready to save - top menu, then File then Save As. GIMP 2.8 - File then Export.
Wendi E. M. Scarth. Top of Page.