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baconbeastnz
10-28-2008, 02:54 PM
When is the vanishing point of a line defined? I.E can it be defined with central projection, or does it need parallel projection?

And does it need to intersect the horizon?

trinitrotoluene
10-28-2008, 03:03 PM
I think vanishing point need perspective projection. See this link (http://mathworld.wolfram.com/VanishingPoint.html).