Iruka wrote: »
One thing that can help with these is to get some real blocks and set up a real lamp. At school, we had a bunch of blocks, bottles, and other simple geometric objects that had been fully painted white. As an exercise, that was Ideal, because you would only focus on the value.
The benefit of getting physical objects is you can move them around, and move yourself around, to get a full understanding of how light works. Approach it like a science project. Let me try and illustrate.
here's two objects, the best I could find off hand. What you want to do is analyze these objects, looking for the following elements:
Not really sure why this video wasn't in the enrichment, but proko explains some of these concepts very well.
What you want to do is take your objects and configure them and observe them. At first you don't even have to draw them, keep your light source the same and move the blocks so you can see how the different faces interact when being rotated under the light. keep your light simple (this is one, flexible neck desklamp) and focus in on trying to recreate what you see extremely accurately. Ask yourself whats going on as you go. So with arrangements like these:
Why does the chapstick on the top middle have a white line on the shadow side? On the bottom right, why does the shadow from the eraser appear to wrap around the cylinder? I suggest using bigger objects, if you can get your hands on some plain wooden blocks, that's ideal.