This in-depth tutorial by Reynante Martinez does a good job of explaining some key concepts of the Gimp. While not directly Blender-related, I think the Gimp is in many Blender artists’ toolbox and I thought a little detour would be worth while.
From the tutorial:
In this two part article series by Reynante Martinez, we will learn how to digitally sketch/draw your scenes, give them subtle color shifts, add fake lighting, and apply filter effects to further emulate how 3D does its job in a step by step process. We will start off from scratch and move on to create a realistic 3D scene with just some 2D tools.
We will discuss:
- creating an appropriate canvas
- layering
- layer modes
- layers as backups
- selection tools
- color transition and theory
- gradients
- filters
- faking Depth of Field
- faking reflections
- simple post processing
Link
