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

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7
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1answer
493 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
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2answers
1k 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 ...
3
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1answer
1k 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 ...
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vote
2answers
414 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 ...
9
votes
4answers
16k views

How can I orbit 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
1k 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 ...
14
votes
5answers
1k 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
550 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 ...
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1answer
118 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 ...
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3answers
4k 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 ...
7
votes
3answers
6k views

How should I implement a first-person camera?

I'm a beginner programmer and I'm creating a project which allows me to walk around rooms via a first person camera. So far, I have the buildings drawn and on, but now I'm stuck and don't know how to ...
13
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3answers
6k views

How do I implement a quaternion based camera?

UPDATE The error here was a pretty simple one. I have missed a radian to degrees conversion. No need to read the whole thing if you have some other problem. I looked at several tutorials about this ...
5
votes
2answers
1k views

Why is my Unity camera chasing player script running slow?

I have a camera class, that is suppose to chase my player, which works, but its really really slow. It only has this line of code, which makes sense to me, player moves, camera moves. Any idea of why ...
2
votes
2answers
2k views

Why isn't my mouse input working as expected in a DX10 game?

I've made myself a camera for a DirectX 10 game, and the keyboard control works fine. However, I can't see to get the mouse to work. My biggest problem is I can't find out how to hide the mouse on the ...
5
votes
1answer
620 views

How can I implement view wobble when my player is running?

I'm creating a FPS in XNA. So far its' going great. What I'm looking at doing is replicating the camera movements that you see in Modern Warfare. So, if you are walking the camera stays pretty ...
2
votes
3answers
1k views

How do I move a 2D top-down racing camera smoothly and show what's ahead of the player?

I'm trying to make a camera that follows a race car. Right now, I'm smoothing the camera movement out by moving the camera's position a fixed percentage lerp'ed from the camera's position to the car's ...
7
votes
1answer
449 views

In a scrolling 2D game, should the objects move or should the camera move?

I'm new to game design and don't really know how things are done. I'm thinking of building an iOS game where a ship has to fly as high up as possible (at variable speeds), collecting power ups, et ...
2
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2answers
3k views

camera movement along with model

I am making a game in which a cube travels along a maze with the motive of crossing the maze safely. I have two problems in this. The cube needs to have a smooth movement like it is traveling on a ...
5
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2answers
547 views

Manipulating a free camera

I have a camera class in my code which stores two 4x4 matrices. One for the view matrix and one for the projection matrix. Originally, I had two floats in the class for pitch and yaw and these were ...
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vote
1answer
592 views

XNA 3rd Person Camera - pitch reverses when facing backwards?

I have a 3rd person camera which rotates around the Y axis fine (yaw) and when I am facing forward (0, 0, -1) moving the mouse up moves the camera up and down great. But the more I turn the player and ...
4
votes
1answer
2k views

How can I track a falling ball with a camera?

I have been trying to get my camera to follow a falling ball but with no success. here is the code float cameraY = (FrustumHeight / 2)+((ball.getPosition().y) /2) - (FrustumHeight /2); ...
7
votes
3answers
332 views

How does the camera/UI know who the player is?

I'm in a bit of a dilemma regarding how certain engine components — like camera and UI — know who to follow, whose health and other attributes to represent on the screen. How do you ...
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3answers
436 views

Move camera on X and Z only

How would you implement movement on a camera in order to always move it on X and Z coordinates, and if the camera has pitch yaw or roll it still moves only in those coordinates and doesn't fly up?
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3answers
2k views

XNA 4.0: 2D Camera Y and X are going in wrong direction

I asked this question on stackoverflow but assumed this might be a better area to ask it as well for a more informed answer. My problem is that I am trying to create a camera class and have it so ...
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2answers
1k views

UDK: Sidescrolling Camera not working

I tried the sidescrolling camera from http://udn.epicgames.com/Three/CameraTechnicalGuide.html#Example%20Side-Scrolling%20Camera but there are some warnings ...
4
votes
3answers
641 views

Zelda LttP (Super Nintendo) room changes?

I'm trying to make a tile-world adventure game on iOS similar to Zelda Link to the Past on SNES, and one issue I've run into is having my camera move beyond walls revealing the rooms on the other ...
0
votes
1answer
223 views

3D Camera control in DCC

I'm trying to build a simple world editor and I would like to implement a camera similar to what's used in 3ds Max, Maya or even Unity. From what I can figure out from Unity, the panning behavior ...
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2answers
567 views

OpenGL Camera causes spatial distortion

I'm trying to implement a 3D camera of the "Orbit around the origin" variety in a game engine I'm developing in order to learn about 3D graphics and game programming. I have a basic handle on the ...
0
votes
2answers
519 views

CubeRealm OpenGL rotation problems, need help. :\

I'm totally new to OpenGL and I'm working on a Sandbox game called CubeRealm. My problem you see is rotation. I've got it in my head that to rotate the 'camera' I just rotate all the scene by the ...
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votes
1answer
442 views

How to create a camera hack for a Torque 2D game?

first I’m not programmer, I’ve been using a popular game for some time and I think it would make a great medium for machinima. Problem is that it’s a top down view startegy game and it doesn’t give ...
7
votes
1answer
955 views

Scrolling a WriteableBitmap

I need to simulate my background scrolling but I want to avoid moving my actual image control. Instead, I'd like to use a WriteableBitmap and use a blitting method. What would be the way to simulate ...
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vote
1answer
876 views

moving 2D camera

I've got a camera that places the character about a 1/4 way into the screen. The problem I'm having is that when the character moves left the character stays in place now placing the character 3/4 the ...
5
votes
1answer
3k views

Mouse location is off due to camera

I'm building a top down shooter but I have a little issue with my camera and mouse. When I add the camera that I use to my game (see here) my mouse pointer seems to be in the wrong location. When I ...
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1answer
3k views

OpenGL 3D Camera

And here I am again, looking for help with my OpenGL camera once again. This is starting to get embarrassing. Anyway, here's the deal: I think my OpenGL First Person free roaming camera is starting ...
4
votes
1answer
4k views

OpenGL ES 2.0: Moving Camera in Orthogonal (2D) Projection

I have quite large 2D game scene. The scene is much larger than the screen of the LCD. Therefore, I have to move the camera (view) in desired directions, to display particular parts of the scene. ...
0
votes
1answer
322 views

Conversion from matrix defining rotation and position to camera matrix

I have a matrix that defines the rotation and translation of an object, relative to (0, 0, 0). Assuming that the identity matrix defines the camera to be at (0, 0, 0) pointing at (0, 0, 1), how would ...
7
votes
2answers
579 views

Portal Projection

Ok ok I admit, I'm bored and toying with a portal script like the one on steam. I've figured out the following: relative positioning of the mirrored cameras render to texture for the portal (the ...
0
votes
1answer
747 views

How do I open the camera in a CCScene node in a Cocos2D application?

I am new to Cocos2D and I can't find the way to open the camera from the library. I want to open the camera in the my game, can any one help me with with this? Thank you in advance.
1
vote
1answer
836 views

FlxSprite ignore camera follow in flixel

I am using flixel v2.5 and am using FlxG.camera.follow to get the camera to follow the player. I have a background FlxSprite that I don't want to move with the camera. Is there a way I can set this ...
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vote
1answer
148 views

Looking for online resources to understand game camera properties

What are some good online resources to understand game camera properties, such as fov, aspect-ratio and more?
2
votes
1answer
542 views

Why are my 2D positions “off” after adding a camera transformation in XNA?

My game's source is on github. I am following this tutorial to create a 2D camera. After I adding the transformation to the SpriteBatch, all of my positions seem to be "off" when I move the ship (and ...
5
votes
2answers
705 views

Recommended 3D camera settings and model sizes for an FPS

I'm making a simple FPS and I can't decide on the size of my models and my camera settings. Could someone please recommend a good combination of: camera field of view near and far planes model ...
4
votes
4answers
1k views

From camera coordinates to world coordinates

I want to calculate world coordinates from camera coordinates. However, I seem to have problems with my understandings of how matrices in HLSL work. From world to camera is clear: cameraPosition = ...
2
votes
1answer
323 views

Does PushButton Game Engine have the notion of a Camera?

I am playing around a bit with the PushButton Engine for game development in Flash and have come across a need for a Camera like the Camera that follows Mario in Mario Games. Flashpunk has a nice ...
2
votes
1answer
535 views

Calculating camera zoom value (top-down)

I need some help in 'camera maths'. I have a birds eye view of two characters. One character is static and the other can move. I would like the camera to always show both characters in full and, in ...
2
votes
1answer
267 views

Why doesn't the y Axis work with SuperBible frame reference or GluLookAt

I'm currently trying to understand how to use the GLFrame Class in the superbible book, and acording to the 4th edition of the book, the camera matrix derived from the Frame of reference class should ...
3
votes
2answers
421 views

Silverlight scrolling with camera

I'm trying to get my head around scrolling a 2D map that uses a physics engine. If I was to launch a projectile, would I actually be applying the physics to the background images rather than the ...
9
votes
4answers
2k views

Camera Control Techniques in Games

I am an MPhil student in Computing Science working on the problem of camera control in graphics. Though the literature of camera control dates back to the end of 1980s, the majority of them (up to my ...
3
votes
3answers
835 views

2D XNA game Camera issue

I'm currently making a 2D Worm-clone in XNA, and have regrets about the way I've made my camera. I declare my camera in my Main class and the camera follows the player. In my draw I then begin my ...
6
votes
4answers
1k views

Equation for bouncing graph?

I basically want my camera in 3D move automatically. Currently, I have linear movement which is rather dumb, so I'd like to do a bouncing movement. However, what is a good equation for bouncing? I ...