I think more people would understand the concept of edges quiker if was called "value gradation" instead, although the word "edges" does hint that it's related to planes half the time... perhaps "gradation of planes"? I suppose "ridges" could also be used. Could use the words "sharp", "dull", "smooth", instead of "hard" etc.
Just realized that "edges" also calls attention to the fact that pictures are made of shapes. So it seems the first thing to teach is looking for isolated shapes on a flat plane, and then describing the gradations that more or less seperate those shapes.
Last edited by armando; May 17th, 2008 at 03:45 AM.
Here's a diagrammatic example. The last pair are particularly important, because they illustrate how intertwined edges, values, and contrast are. Sometimes what seems like a value problem is really an edge problem, and vice-versa.
The original picture is a great example of edges, even though the practice and idea of edges is complicated and many different things can change an edge, from blending to just a simple change in value or even the hue of the color.
Edges aren't just value gradations, as you can have two very sharp edged shapes next to each other with solid blocks of value that are very close to each other and they will have a perceived soft edge even though in reality it could be razor sharp. It's similar to doing a value chart, putting two close value steps next to each other, squinting your eyes, and watching the values blend.
Also you can have two similar valued colors next to each other with a different hue and blend the edges together and it would make a perceived soft edge of two different values, but it will have no change in actual value if you were to make the painting monochromatic. It's also a handy tool to use if you are trying to conserve values in a painting.
Elwell: oh, great thread! Not trying to reinvent the wheel :] That's a really good illustration, too, makes an important point!
Blackhawk: more good stuff, thanks! Yes I guess one could go really deep with this and it probably has been done to a great extent already - it's probably good to sometimes read the same in different words, though!
mentler: ahm that flatters me, not sure if I'm qualified! I'll go take a look and let you know!
baretul: AH! Thanks :] Let's go sketch!! Check your pm!
I tried to send you message that it would be ok to meet up soon and sketch. Althou between the few days when the trimester ends and when i fly to home for the summer, because now I have to work all the evenings and weekends to finnish my second bargue ... But it said that your PM mailbox is full, and it couldnt get trough.
In the same second that I put the send button my mom called me that my brother is propably coming over for the last 4 days. So my time here is now totally booked full ...
But can I pm you on fall? I would love to sketch for a while.