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Camera

Started by Apouche Apr 29, 2003 at 4:45 PM 0 replies 900+ views

Original Post

Apr 29, 2003 at 4:45 PM

I use Direct3D and, in fact here is what I want to do. I have a ship that moves in the 3D space and I want my Third person Camera to always follow it. How can I do that ? I use the D3DXLookAtLH function but it doesn''t really work because my camera don''t use with it. Furthermore, when for example my ship turn left (a Yaw angle not a Roll) I still want my camera to be behind it. Don''t forget that it is a third person camera so there is a distance separating the ship and the camera. Thanks...

Enselic

Apr 29, 2003 at 5:09 PM

I've never actually implemented an 3rd-person camera myself, but if you want a really simple one, and if you have the direction vector of the ship, you could just set the camera position at the point vShipDirection * -X and and the the "look-at" point to vShipPosition where X is a number that suits your scale. If you want a smooth moving camera with interpolation and stuff I think you should look into quoternions. But as I've said, I've never implemented a 3rd-person camera myself.

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[edited by - Enselic on April 29, 2003 6:09:35 PM]

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