Building shapes out of points, lines, and faces
Using line set coordinate index lists
 
- A line is drawn between pairs of coordinate indexes
	- -1 marks a break in the line
	
	 
- A line is not automatically drawn from the last
	index back to the first
 
 
- coordIndex [ 1, 0, 3, 8, -1, 5, 9, 0 ]
	- 
	| 1, 0, 3, 8, | Draw line from 1 to 0 to 3 to 8 |  | -1, | End line, start next |  | 5, 9, 0 | Draw line from 5 to 9 to 0 |