Well, first of all, here's my GIMP setup. This program is really awesome especially because you can customize the layout. To open all the necessary panels I have here, go to Windows>Dockable Dialogs and select: Layers, color, tools, and tool options. Then when you've got it set up how you like, go to File>New.. to create a blank canvas.
Create a transparent layer before you start drawing ^.^
Here's my pencil tool set up for sketching stuff. Keep in mind that the "brush dynamics" are important to play around with until you have them the way that suits you best. The "pressure" option is only for tablet users, sorry! :(
On your transparent layer, sketch out your drawing. And also, here's my eraser tool setup :D
turn the sketch opacity down.
Now, you can lineart two ways. First, make a new layer. Then you can use a paintbrush to outline your sketch...
Or you can use the paths tool, which has hearts around it because I love it very much.
So, to use the paths tool is pretty simple. Tap/click to create a line, tap and drag to create a curve. You can use the diamond thingies on the sides on each dot to adjust the curve.
Once you have all your lines set, click "stroke path" and set the width of your lines. (I chose 10 pixels :D)
Once you have your lines, don't stop there! :O Fix any little errors you might find with the paintbrush and eraser. I circled where I edited the lines.
Now click the eyeball on the sketch layer to turn that layer off :D
Now, using the magic wand tool, select the areas that will be skin colored. Then create a new layer underneath the lineart layer and use the bucket to fill it in.
Press ctrl+shift+a to deselect everything, color in any uncolored areas, and lock the layer to shade.
Do the same stuff for the hair and eyes, giving each a new layer. You can color the hair however you want, but this way looks nice usually ^.^
Here's another way to draw stuff: PAINTING :D Start with a rough "lineart" on a new layer.
On a new layer below, fill in all the "base colors".
Merge the lineart into the base layers in Layers>merge down OR Right-click layer and select merge down
Starting with the skin, shade and lighten stuff with a low opacity. Remember, here THE COLOR PICKER IS YOUR FRIEND. You can switch between the paintbrush and color picker each time, or press ctrl and click on the color you want.
do that for everything else, working your way from the "bottom" (what would be the lowest layer if you were using layers) to the "top" (what would be the top layer). I do believe I broke GIMP, because suddenly a random line appeared. D:
:O OH NOSE! You "accidentally" scribbled all over your drawing! First-time digital artists might not realize that just because you can't find an undo button doesn't mean that there isn't one. Some keyboard shortcuts that you will NEED to know:
Zoom in: +
Zoom out: -
Color picker: ctrl + (click)
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