Part of the Khronos Group
OpenGL.org

The Industry's Foundation for High Performance Graphics

from games to virtual reality, mobile phones to supercomputers

Results 1 to 4 of 4

Thread: i dont understand the perspective projection

  1. #1
    Junior Member Newbie
    Join Date
    Jul 2013
    Posts
    19

    i dont understand the perspective projection

    im learning opengl from an online book

    and i dont understand what the authors means from this headline "The Perspective Divide"
    untill this one "Equation 4.2. Depth Computation" (including it)

    this is the book

    w*w*w.arcsynthesi*s.org/gltut/Positioning/Tut04%20Perspective%20Projection.ht*ml (remove *s)

    I would appriciate if someone could help me understand it

  2. #2
    Junior Member Newbie
    Join Date
    Jul 2013
    Posts
    19
    anyone ? :{

  3. #3
    Member Regular Contributor
    Join Date
    Jun 2013
    Posts
    474
    What don't you understand? Perspective? Homogeneous coordinates? gluPerspective()?

  4. #4
    Junior Member Newbie
    Join Date
    Jul 2013
    Posts
    19
    Quote Originally Posted by GClements View Post
    What don't you understand? Perspective? Homogeneous coordinates? gluPerspective()?
    the link i gave you my main problem is to understand the text under the title "Camera Perspective" until the code of the vertex shader
    I really dont understand why he did what he did I just dont understand what he explained and why he did the stuff he did maybe you could help me understand it

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •