Normals!?! | GameDev.net

Original Post

Jul 1, 2000 at 5:59 AM

In my 3d engine the lighting is screwed up really badly. Example: LoadData Rotate_World Draw_World Rotate_Objects Draw_Objects Do I need to rotate face normals by the World rotation? Thanks for any advice...

XBTC

Jul 1, 2000 at 12:10 PM

If you do your lighing-calcs after the rotations\transformations (I mean if you use the rotated\translated vertices for your light-calcs)you´ll have to rotate your face-normals.

HTH,XBTC!

Edited by - XBTC on July 1, 2000 1:12:30 PM

shamen

Jul 4, 2000 at 9:11 AM

Dont forget, if you scale an object, you''ll have to re-calculate your normals, or let OpenGL generate them for you (slow)! Avoid glScale.

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