07-08-2003, 09:09 PM

can anybody give me some source code on how to generate 1000 3D points to form/ produce a sphere, cone, cylinder, pyramid, cube using opengl.

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07-08-2003, 09:09 PM

can anybody give me some source code on how to generate 1000 3D points to form/ produce a sphere, cone, cylinder, pyramid, cube using opengl.

gvm

07-08-2003, 11:09 PM

hm... maybe you should buy a book about OGL programming??? or 'bout math?

check this one: Francis S.Hill "Computer Graphics Using OpenGL SE" (good for beginners)

check this one: Francis S.Hill "Computer Graphics Using OpenGL SE" (good for beginners)

kehziah

07-08-2003, 11:21 PM

OpenGL is for *displaying* things, not generating them.

You give it the 1000 points, and it draws something. It won't generate the points for you.

You give it the 1000 points, and it draws something. It won't generate the points for you.

roffe

07-08-2003, 11:28 PM

Don't have any source code, but for a detailed description look up math books about analytic geometry. These are from the top of my head:

sphere at point P:

(x-Px)^2 + (y-Py)^2 + (z-Pz)^2 = r^2

cylinder=extruded circle=>

(x-Px)^2 + (y-Py)^2 = r^2

cone=cylinder where r decreses by dr/dz

sphere at point P:

(x-Px)^2 + (y-Py)^2 + (z-Pz)^2 = r^2

cylinder=extruded circle=>

(x-Px)^2 + (y-Py)^2 = r^2

cone=cylinder where r decreses by dr/dz

07-09-2003, 01:22 AM

Originally posted by roffe:

Don't have any source code, but for a detailed description look up math books about analytic geometry. These are from the top of my head:

sphere at point P:

(x-Px)^2 + (y-Py)^2 + (z-Pz)^2 = r^2

cylinder=extruded circle=>

(x-Px)^2 + (y-Py)^2 = r^2

cone=cylinder where r decreses by dr/dz

How about torus?

Don't have any source code, but for a detailed description look up math books about analytic geometry. These are from the top of my head:

sphere at point P:

(x-Px)^2 + (y-Py)^2 + (z-Pz)^2 = r^2

cylinder=extruded circle=>

(x-Px)^2 + (y-Py)^2 = r^2

cone=cylinder where r decreses by dr/dz

How about torus?

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