gluLookAt() vs. glTranslatef() and glRotate4f()

Sky · 2003-03-09T04:28:08

In lesson 10 it uses glTranslatef() and glRotate4f() to move the world around the camera, but in lesson 34 it uses GluLookAt() to change the camera position itself. It seems like GluLookAt() would be much easier to use... What are the pros and cons of each? And which one is easier on the proccessor

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Started by Sky January 21, 2003 07:22 AM

10 comments, last by Sky 21 years, 1 month ago

Julio

116

January 23, 2003 07:28 AM

quote:
Using glTranslate to move or fake a camera i VERY expensive on the hardware.

no neccessarily true. you can''t render a new scene by actually moving the camera. the rest of the world is moved so it looks like the camera is moving. gluLookAt might (and probably is) more optimized than gltranslatef, but it has to work the same way.

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MisterQue

122

March 09, 2003 04:28 AM

hello i''m new

I made my camera with glTranslatef and glRotate
and it works fine... at the moment

please, have a look at it and say me what you think:
http://213.221.106.91/forum/attachment.php?s=&postid=734832

the code is some kind of weird and most comments are in german, but if you want, i translate it

gluLookAt() vs. glTranslatef() and glRotate4f()

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gluLookAt() vs. glTranslatef() and glRotate4f()

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