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7.2

How to pan the camera in perspective projection

Asked by SunnyDark in 3D Game Programming, Graphics & Game Programming

Tags: 3D, camera, perspective projection, pan

Hello experts.
I have a 3D application wich defines a 3D scene and a camera with perespective projection matrix than can orbit, zoom and pan.
My goal is: If i click some point in the 3D scene and begin to pan the view (with the mouse of course) I would like the point I picked to end up directly in the new location of the mouse.
I understand that this can be done easily with orthographic projection, but with perespective projection if I pick a point close to the viewer it moves farther away than the mouse and if I pick a point far from the viewer it moves less than the mouse...
The only case where the point I pick is close enough to the new position of the cursor is if I pick something very near to the camera target...
I am sure that there has to be a simple solution to this problem...

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How to pan the camera in perspective projection

Asked by SunnyDark in 3D Game Programming, Graphics & Game Programming

Tags: 3D, camera, perspective projection, pan

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