How to Use Hatching Technique to Shade (with Mechanical Pencil)
У вашего броузера проблема в совместимости с HTML5
http://thedrawingtutor.com/
This is a short tutorial on using hatching technique to shade. I use hatching technique in all of my drawings. Making quick straight, and tightly grouped lines will help you cover a large are very quickly. You can also use squiggles to shade, which is another method, but I prefer to use straight hatching lines to quickly render my sketches and drawings.
For digital artwork I work in Corel Painter, Photoshop, and use a Wacom tablet.