Members - Reputation: 104
Posted 10 December 2012 - 09:51 AM
Members - Reputation: 1561
Posted 11 December 2012 - 06:04 AM
You will probably need three different modes, for vertices edges and faces. For vertices, it may be an idea to draw small quads instead of dots, making it easier to hit them with the mouse. For edges, you can draw wide lines.
Do you want continuous detection of the object behind the mouse, or only when the user clicks with the mouse? Continuous detection can lead to performance problems.