Also I would suggest once you have your texture, if you want to paint with it after, turn the texture (picture) into a brush. Edit (top menu) then in the drop down menu; copy, paste as a new brush and give your brush a name in the dialog that comes up - refresh your brushes dialog and you will see it there.
If you have GMICqt you can render patterns and then bump them as ofnuts and rich showed.
Category in GMIC is Patterns. Look at the different ones there and see what you like.
If you have GMICqt you can render patterns and then bump them as ofnuts and rich showed.
Category in GMIC is Patterns. Look at the different ones there and see what you like.