Tagged Questions
The viewpoint from which the game world is observed from.
1
vote
1answer
96 views
Strange 3D game engine camera with X,Y,Zoom instead of X,Y,Z
I'm using a 3D game engine, that uses a 4x4 matrix to modify the camera projection, in this format:
r r r x
r r r y
r r r z
- - - zoom
Strangely though, the camera does not respond to the Z ...
3
votes
2answers
91 views
What's a pre-multiplied 4x4 matrix?
I'm using a 3d game engine, that uses a 4x4 matrix to modify the camera projection.
The matrix is in the regular 4x4 format:
r r r x
r r r y
r r r z
- - - zoom
The description for the ...
3
votes
1answer
78 views
Is there a standard camera position / orientation?
I've come across a need to position a camera for an arbitrary (unknown) scene. The camera can be updated later, but I thought I'd give it a reasonable default, and the thought crossed my mind that ...
4
votes
1answer
134 views
How can I achieve a zoom-like camera effect?
I have a top down 3D camera:
view = Matrix.CreateLookAt(new Vector3(0,0,20), Vector3.Zero, Vector3.Up);
Now I want to achieve the effect like when I zoom in the scene and only show a section at the ...
4
votes
1answer
60 views
Getting the Bounds of a 2D Cameras View with Zoom
I am using a 2D camera, which does rotations and zoom. Currently, I am using the following to get my MinX, MinY, MaxX and MaxY...
public float MinX
{
get
{
return ...
6
votes
1answer
210 views
Design of a camera system
Thinking about a common game, doesn't matter the type of the game, it's very likely that we need some camera type. For example:
Debug camera: controlled by keyboard and mouse, with that we are able ...
2
votes
2answers
185 views
Why is my quaternion camera rotating around strange axes?
I can't get it to work for the life of me. Its rotating the camera in the global coordinate system, or some other random coordinate system, not the camera local coordinate system. WASDEC work ...
1
vote
2answers
163 views
Can a 4x4 matrix describe a camera's perspective?
I'm working with a closed-source 3D engine, and it only allows you to set the view projection via a 4x4 matrix. Can this matrix describe the camera's translation, rotation & perspective?
I turned ...
1
vote
2answers
93 views
Creating a rotation offset based on camera position with XNA
I have an XNA project where characters have the ability to pick up and move objects around (in 3d). When an object is picked up by a character, I want ithe objects position to always be out in front ...
1
vote
3answers
216 views
How can I rotate a camera about it's target point?
I'm drawing a scene where the camera freely moves about the universe. The camera class keeps track of the view (or look at) point, the position of the camera, and the up vector. These vectors/points ...
2
votes
1answer
88 views
Steady zoom on center in LWJGL (Modelview)
I am having a problem in LWJGL with zooming in and out. I am using glScaled(zoom, zoom, 1) before glTranslated. There are 2 problems:
1. The rate of zoom speeds up a lot when zooming out (lower zoom ...
12
votes
5answers
435 views
Creating my own kill cam
I plan on creating my own kill cam system for a sandbox tool set. After thinking about the mechanics of the kill cam itself, however, I'm quite lost. I'm trying to recreate the ones commonly seen in ...
2
votes
1answer
125 views
Smooth Camera Rotation around 90 degrees
I'm developing a third person 3D platformer in XNA. My problem is when I try to rotate the camera around the player.
I would like to rotate (and animate) the camera 90 degrees around the player. So ...
1
vote
1answer
81 views
What game systems exist which uses camera input?
The group and I is in the middle of a semester project where we are currently researching on which game systems are using camera as input or as an interactive medium?
We would like some help listing ...
0
votes
2answers
138 views
Determine corners of a specific plane in the frustum
I'm working on a game with a 2D view in a 3D world. It's a kind of shoot'em up. I've a spaceship at the center of the screen and i want that ennemies appear at the borders of my window. Now i don't ...
