This GIMP (GNU) tutorial demonstrates how to create a highly textured chip away 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 Image, and set the following Width and Height and Fill with attributes. Alternatively, select Width and Height dimensions of your choice.
If you are not printing your work, set a Resolution of 72.000 Pixels. If you are printing your work, a resolution of 300.000 Pixels will be better.
Right-click over the Background Layer - and from the subsequent drop-down list click Add Alpha Channel.
Now, from the top menu, choose Filters then choose Alpha To Logo and then choose Chip Away. And from the subsequent Script-Fu Chip Away dialogue box, enter settings of your choice, and then click OK.
To finish, from the top menu, choose Image and then choose Flatten Image.
Your texture will benefit from a Sharpening Filter. (Filters then Enhance then Unsharp Mask).
Congratulations, your Texture is complete, and is ready to Optimise and Save.
Wendi E. M. Scarth. Top of Page.