Thread: orthographics parallel projection

  1. #1
    Registered User
    Join Date
    Jan 2011

    orthographics parallel projection

    I am trying to draw a bezier surface using orthographic paralle projection to view the surface. VRP (0,0,0) and VPN is (0,0,-1).

    I'm just trying to see where my eyes are located and in which direction Im viewing the object

    Is the following figure correct? My eyes are located at VRP (0,0,0) (red circle) looking at the -z side. VPN is in green. Object is yellow.

  2. #2
    Programming Wraith GReaper's Avatar
    Join Date
    Apr 2009
    When orthographically projecting you collapse all points on a surface. If that surface is the (0, 0, +/-1), all you have to do is make the Z coords zero.
    Devoted my life to programming...

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