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I'm new to Warhammer and i've heard this word many times, but i don't know what it extactly means.
It means "lighting" the "highs".
In more understanderble terms, it means making the raised parts of the model a lighter shade than the non-raised parts, making it look as though light is shining on it. A basic technique some use to do this is drybrushing.
You can also simulate this effect with a wash. (using heavily watered down paint or watered down ink)
So, your Ogre Bull has just been painted a nice Dwarf Flesh. But it looks a bit odd, having the underside of the arms (where no light hits) and the space between the muscles (where less light hits) the same colour as say, the top of the head.
So, you add perhaps some Skull White to some Dwarf Flesh and apply it only to the raised areas, being careful not to get it in the darker parts. If you want you can highlight further, with each highlight getting lighter and covering a smaller area.
This is a good explination. For more information, try going here. Have alook alittle further down the page, they have some great tutorials and information on highlighting, and inking and other aspects of painting.Originally Posted by Revlid