Point of origin

- A great method for controlling the position of…a lot of the lines on your drawing…is the use of the point of origin.…That's most clearly demonstrated if you look at creases…on the character, especially under the armpits,…the knees, the joints, and, you can see…on the right side of this image,…I've drawn in the points of origin with little red asterisks…so you can see exactly where they're going to.…You can see that each line follows, even as you can't see,…to this invisible point, where they all join together.…

By using these points of origin,…as you change the position of the character…from key to key, or drawing to drawing,…you can keep them consistent,…so you know exactly what's going on.…Let's have a look at another example.…Now, here I've done two drawings…of an arm in different positions.…Again, the points of origin…are put in in little red crosses.…You can see, as we move from one to the other,…that the creases obediently follow these points of origin.…In other words, also on the second drawing,…as the arm moves out from the body,…