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Type: Posts; User: yaba

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  1. Thread: questions...

    by yaba
    Replies
    5
    Views
    365

    Re: questions...

    I basically track the mouse coords, use an overlay for the rubberband & convert the pixel values(x,y) to world coords using gluUnproject(with z=0) to pass to glFrustum. The near/far clipping planes...
  2. Thread: questions...

    by yaba
    Replies
    5
    Views
    365

    Re: questions...

    yes, I load the identity matrix before calling glFrustum...is that the wrong thing to do?
  3. Thread: questions...

    by yaba
    Replies
    5
    Views
    365

    questions...

    Hi,

    I've implemented a virtual trackball for moving the scene around. I also have a rubberband zooming function using glFrustum with the appropriate x,y clipping plane values. However, when I move...
  4. Thread: gluPickMatrix

    by yaba
    Replies
    5
    Views
    1,240

    Re: gluPickMatrix

    thanks v-man, glFrustum works..just 1 more problem though, in order to have the zooming rectangle match the user-dragged rectangle precisely, it has to be drawn on the plane of the eye position...
  5. Thread: gluPickMatrix

    by yaba
    Replies
    5
    Views
    1,240

    Re: gluPickMatrix

    so I use glFrustum with the x,y clipping planes set to the values obtained from the dragging rectangle(after I convert the screen coords to world coords using gluUnProject)? and the near & far z...
  6. Thread: gluPickMatrix

    by yaba
    Replies
    5
    Views
    1,240

    gluPickMatrix

    Hi

    I've been trying to implement a simple zooming function using gluPickMatrix & gluPerspective. What I want is to let the user drag out a rectangle to zoom in on. I track the mouse events to...
  7. Replies
    2
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    332

    projection onto hemisphere

    maybe this question doesn't belong in this forum but I was trying to do this in opengl for a trackball so...

    I was wondering if someone could explain this code I found for projecting 2D points...
  8. Thread: wireGL

    by yaba
    Replies
    2
    Views
    376

    wireGL

    Anybody know where I can find more detailed help on using WireGL?
  9. Replies
    5
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    612

    Re: updating an existing opengl window

    oic..what about having multiple machines, each doing some of the rendering to a single window on 1 machine and at different times? is that possible? maybe using glutSetWindow..although I'm not sure...
  10. Replies
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    612

    Re: updating an existing opengl window

    wow sounds like u're really experienced...

    I've been playing around with my program the last few days, trying out different things. I'm still a little confused as to how to add additional points...
  11. Replies
    5
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    612

    updating an existing opengl window

    Hi,

    Thanks for all your help getting started with glut, Rob http://www.opengl.org/discussion_boards/ubb/smile.gif

    Cld anyone offer some advice about taking input(vertices) to add to an...
  12. Replies
    3
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    523

    Re: glut library error

    Thanks for the help. I had tried using -L/usr/local/lib before, but it gave me a different error. Anyway, I tried the same thing on a different machine(adding the -lX* options) and it compiles fine...
  13. Replies
    3
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    523

    glut library error

    Hi

    I'm new to OpenGL. I tried to compile a simple GLUT program on AIX with the following command :
    cc -o test test.c -I/usr/local/include/GL -L/usr/local/lib/libglut.a -lglut -lGL -lGLU

    I get...
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