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...

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

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...

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...

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...

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...

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...

Anybody know where I can find more detailed help on using WireGL?

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...

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...

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...

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...

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...