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Questions tagged [camera]

Game worlds are viewed from a camera, which is the viewpoint from which the game world is observed from.

3
votes
2answers
2k views

3D camera implementation

I've been bashing my head against the concept of a 'camera' for my 3D world for some time now, and I'm not sure I'm doing this right anymore. Maybe I've been working on this for too long and have ...
4
votes
3answers
2k views

How to determine what triangle in a mesh the cursor is pointing to?

I have a game I'm working on in which items are "placed" and "selected". In order to do this, I need to determine what triangle in a mesh the cursor is pointing to. I have no trouble with getting ...
4
votes
3answers
8k views

Camera Rotation using angles

I currently try to rotate a camera (using gluLookAt()) around a point , i successfully do it for rotating around one global axis. But when i want to use more than one axis , I'm stuck . I've ...
6
votes
2answers
509 views

Size of the world and clipping area

I have a 32x32x32 cube (I say 32 because that's the size of the texture). I can make the vertices of this cube go from (0,0,0) to (32,32,32). This mean the camera will be moving += 1 when ever a key ...
4
votes
1answer
1k views

FPS Camera Look Direction

I'm using XNA to create an FPS camera that uses a Direction vector instead of a Target vector control the camera's orientation. I'm having trouble with the math for looking up and down when the ...
2
votes
2answers
4k views

Camera field of view: 3D projections & trigonometry

Okay, here goes. I have a camera at (Xc, Yc, Zc.) The Xc and Yc coordinates are latitude/longitude, and the Zc coordinate is an altitude in metres. I have a point at (Xp, Yp, Zp) and a field of view ...
3
votes
2answers
2k views

Scrolling 2D sprites on a map with a camera

I'm working on a 2D sprite-based strategy-type game (ok, full disclosure: it's a tower defense game), and I'm having a problem getting the actors to behave correctly when I move the camera. I've got ...
36
votes
5answers
18k views

Realistic Camera/Screen Shake from Explosion

I'd like to shake the camera around a bit during an explosion, and I've tried a few different functions for rocking it around, and nothing seems to really give that 'wow, what a bang!' type feeling ...