Second exercise of Dynamic Sketching is "volume". We show volume through contour line and adding texture in a strategic way because it is all about expressing your idea quickly.
When I saw the examples, I was very intimidated at first, because I wasn't sure
how much or how little should I put the textures? When is enough or not
enough? The great thing about it, is you get the hang of it
pretty quickly and start understanding it right away. As long as it feels
right, then you're doing good. And of course it gets better as you practice more.
These are the steps:
1. Come up with any abstract shape
2. Put contour lines
3. Add texture.
1. Do one object at a time.
2. Good rule of thumb is whatever closer to you will have thicker lines, and the one that's further has thinner lines.
3. This is about showing idea, so there is no need to texture the whole object, most texture will be around the core shadow.
Try them out, it's really fun to do.
ps. making object dissection is really fun.