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Thread: MouseCoords

  1. #1


    ok, when i get x,y coords from glutMouseFunc
    how can i convert it to 3d space coords, and how can i get z coord?

    trying to do this:
    i have many GL_QUADS(only x,z changes,y is the height of gl_quad,currently always 0.0f)

    when i get the x,y coords from glut i need to search for the right GL_QUAD and change that's y coord

    gl_quads are stored in mutated binary tree

    from my last post someone sayd to use gluUnProject but it doesn't return right values

  2. #2

    Re: MouseCoords

    Check out gluUnProject.

  3. #3
    Senior Member Regular Contributor
    Join Date
    Jul 2000
    Augsburg, Germany

    Re: MouseCoords

    First get the z-value from the z-buffer with glReadPixels. Then use your (x/y/z-buffer) values as parameter for gluUnProject.


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  1. MouseCoords
    By in forum OpenGL: Basic Coding
    Replies: 2
    Last Post: 07-12-2001, 05:45 PM

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