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camera rotation

Started by nareshn2003 Sep 15, 2005 at 12:29 AM 4 replies 500+ views

Original Post

nareshn2003

Sep 15, 2005 at 12:29 AM

Hi Where can i found good tutorial on camera rotation that similar like arcball (trackball) . Can i do whithout calculating 4D vector ? please sugges me camera rotation tutorial using mouse 2d position for beginner .

Peregrin

Sep 15, 2005 at 12:31 AM

NeHe lesson 48 - ArcBall Rotation.

nareshn2003

Author

nareshn2003

Sep 15, 2005 at 12:43 AM

Hi

It's object rotation not camera rotation . I am confused with camera rotation.

Peregrin

Sep 15, 2005 at 1:02 AM

Sorry, all the references I found to arcball were in the context of object control.

Take a look at Quaternion Camera Class, by Vic Hollis.

matthughson

Sep 15, 2005 at 1:18 AM

Hey, are you trying to have a camera rotation around a point (like an orbit)? Or are you trying to make a camera that behaves like a First-Person Shooter? Sorry, I know you gave an example, but I'm not familar with arcball.

Also, are you using DirectX by any chance?

Matt Hughson

Rasmadrak

Sep 15, 2005 at 3:32 AM

simply use your friends sin and cos and tan...

Camera.x = sin(ViewDirection*PiOver180)*DistanceFromObject;
Camera.y = cos(ViewDirection*PiOver180)*DistanceFromObject;

tricker with tan I just noticed.. but this ^^ should get you started...

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