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Index › Programming Questions & Help › OpenGL and 3D Libraries › Basic 3D Camera Question
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Basic 3D Camera Question (Read 1240 times)
Driscoll
Basic 3D Camera Question
Mar 4th, 2010, 4:37pm  
What do I need to do to have a free camera, completely movable, pitchable, rollable, and yawable? Basically like a plane in a flight simulator, not one that is locked on one axis, like a FPS player. I have a good deal of experience in 3d, but I am embarassed to say that I can't figure this out.

My question is about the best way to approach the math, and setting the camera in processing. The rest, like input and drawing, I already know. Thanks!
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gll
Re: Basic 3D Camera Question
Reply #1 - Mar 5th, 2010, 12:59am  
I tried many things, but using the quaternions was the most efficient.

http://www.gamasutra.com/view/feature/3278/rotating_objects_using_quaternions.ph...

http://www.euclideanspace.com/maths/geometry/rotations/conversions/eulerToQuater...

You could then produce the 4x4 Matrix for public PMatrix3D camera; in PGraphics3D. I'm not sure what is the best way to update this matrix, since it's problematic with the cameraInv.

Something like camera(PMatrix3D mat); would have been helpful in this case.
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LaBelle / ANAR.ch / LaBelle.spaceKIT.ca
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Quark
Re: Basic 3D Camera Question
Reply #2 - Mar 5th, 2010, 3:18am  
You might like to try the OCD library it looks like it mioght do what you want.
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