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Coordinates

Started by TheVoid Oct 27, 2002 at 6:39 AM 3 replies 250+ views

Original Post

Oct 27, 2002 at 6:39 AM

Hello! First, look at the picture at: http://flux5.w.interia.pl/picture.gif How to draw the same rectangle form 3D space in 2D space? Does anyone know an equation that allows to convert (x,y,z) coordinates to (x,y) coordinates? I''m sure that it exists.

Basiror

Oct 27, 2002 at 10:43 AM

switch to orthographic mode with glortho(...)
and set the z value to zero

TheVoid

Oct 27, 2002 at 12:01 PM

But I want to know an equation too.

IllMind

Oct 27, 2002 at 12:40 PM

Check www.thepixels.net in the tutorials section. The OpenGL tutorial 0 explains 3d fundementals quite well. About a 1/3 of the way down there is an equation for converting a 3d point to 2d. I dont know if its what you need, but it might help.

TheVoid

Oct 27, 2002 at 2:47 PM

OK. Thanks!

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