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zooming

Started by redrum Jun 2, 2004 at 4:02 PM 3 replies 450+ views

Original Post

Jun 2, 2004 at 4:02 PM

Hi, i am working on a fps, and i am trying to add a zoom effect for my sniper weapon. Whatever i tried did not work, i tried to use glScalef and gluPerspective but no way. What am i doing wrong? Thanks for your help.

Sneftel

296

Sneftel

Jun 2, 2004 at 4:08 PM

gluPerspective is the key. Just decrease your fov and the view should become magnified. That''s what real telescopes do, after all.

"Sneftel is correct, if rather vulgar." --Flarelocke

redrum

Author

redrum

Jun 2, 2004 at 4:18 PM

i used this code to modify fov but it did not help

glMatrixMode(GL_PROJECTION);
glPushMatrix();
glLoadIdentity(); //very important
gluPerspective(35, ratio, 1, 1000);

Rasmadrak

Jun 2, 2004 at 9:37 PM

it should be gluPerspective(ratio,"value","value","value");

the first variable in gluPerspective is the FOV in degrees... =)
hope it helps!

redrum

Author

redrum

Jun 3, 2004 at 7:42 AM

if you can send me a bit of code that would be great because i have a presentation tomorrow and i still cannot zoom using gluPerspective.
The view does not change even a little when i press the right mouse button.

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