Hello fellow Cartographers.

I was going through Torstan's wonderful tutorials on how he makes Isometric Mountains, and he says one of his steps is to "Block in the basic light and shade on an overlay layer."

Now I've searched far and wide across the internet for what to "Block In" something means. All I get back from every search engine is how to block spam and a bunch of other irrelevant garbage.

Do one of you wonderful Photoshop users know what it means to "Block In the basic light and shade? "

I know that he means he wants us to add highlight and shading to the mountains but I am talking about his specific technique for doing so.

I've painted miniatures for years and highlight and shade those all the time but I've never heard anyone say to block something in. Any ideas?

Thanks in advance