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

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Displaying streaming video on dynamic texture

We are working in Unity 3D on pro licence and we are faced with the task to display streaming video as a dynamic texture in out Unity3D web project. We have a standard IP-camera , which is capable of ...
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1answer
65 views

Why does everything appear backwards when using orthographic projection?

I may not be calculating my orthographic projection matrix properly. What can I do to ensure that my scene renders correctly when using orthographic projection? The rendering order appears to be ...
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3answers
124 views

Applying scale to objects appears to have little effect when close up.

I just started out with D3D 11. My goal is to write a cube voxel engine (Minecraft style). Actually it's working pretty solid already, but when I finally tried to change the size of my cubes, I ran ...
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1answer
115 views

Automatically zoom out the camera to show all players

I am building a game in XNA that takes place in a rectangular arena. The game is multiplayer and each player may go where they like within the arena. The camera is a perspective camera that looks ...
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3answers
123 views

Can I use a translate function to implement a viewport?

I read this great question and its accompanying great answer about rendering a viewport in a top down 2D game: As for actually drawing the objects the camera can "see", you now draw all objects ...
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1answer
142 views

Cartesian Coordinates & Layout [duplicate]

The way cartesian coordinations are presented and used is kinda confusing. When working with 2D the vertical axis is Y, though when working with 3D the vertical axis is Z and Y becomes the "depth" ...
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1answer
463 views

Understanding the z-axis vector from OpenGL modelview matrix

I would like to shoot spheres in the current view direction in a simple scene. I use an FPS camera, so no z-rotation. The vector pointing in the correct direction should be (m[8], m[9], m[10]) where m ...
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2answers
329 views

Creating a 2D perspective in 3D game

I'm new to XNA and 3D game development in general. I'm creating a puzzle game kind of similar to tetris, built with blocks. I decided to build the game in 3D since I can do some cool animations and ...
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2answers
248 views

What should I consider when selecting a field-of-view (FOV) for a space game?

I am making a space game (like the game Freelancer). You control a space ship in third person. What are some gameplay considerations that I should weigh when selecting a field-of-view (FOV) for such ...
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3answers
229 views

How to put a “mask” in front of the camera in Ogre?

Is there any easy way to put kind of a "mask" in front of the camera in an Ogre 3d application, so that parts of the scene are always covered by that mask? The idea is that I want to have an effect as ...
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1answer
119 views

How to make camera rotation independent from frame rate?

I multiply the mouse movement by a given number to get camera rotation of a desired speed. But it only works at 60 FPS. When I don't limit the frame rate I get around 350 FPS and the camera rotation ...
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208 views

Accumulating rotations for camera

It seems there are three ways to store a camera's rotation: in angles, view matrix or quaternion. I was using euler angles since when I used a matrix it had a tendency to accumulate rounding errors ...
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1answer
469 views

How do I make camera follow the player within some bounds?

I am creating a simple ambient/explorer platformer. Because I want the player to only be able to see a new area once they have reached it, I decided to split up the world in rooms. To not make things ...
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2answers
402 views

Frustum Culling/Only rendering what's viewed by the Camera in HTML5 Canvas?

I coded up a simple 2D Camera for my HTML5 Canvas-Based Game Engine but I noticed the performance wasn't very good. So a lot of people suggested only rendering things that are shown by the camera but ...
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1answer
859 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 ...
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1answer
787 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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1answer
145 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?
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58 views

Setting up a camera to make the world look large

I am attempting to configure my camera to give the impression of a normal sized player in a giant room. Since units are arbitrary, I figured this should be possible (despite the fact that the room is ...
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1answer
41 views

Fit a bounding box in the scene modifying FOV

Suppose I have a radius for a spherical bounding box around a mesh. My goal is to render the scene such as when the camera moves, the bounding box whose centre the camera look at, occupies always ...
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1answer
83 views

Pygame Scrolling Map

I have two questions. I'm working in a rogue-like and I've manage to implement a camera on the player, the camera shows just the players surroundings and is fixed in the side of the windows. The ...
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1answer
258 views

OpenGL - Calculating camera view matrix

Problem I am calculating the model, view and projection matrices independently to be used in my shader as follows: gl_Position = projection * view * model * vec4(in_Position, 1.0); When I try to ...
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1answer
191 views

Unity 2D camera drifts from player as speed increases

I have a dilemma that I did not have in XNA before porting my game to Unity. First-- my goal is to mimic Super Mario World 2's camera tracking in x. The camera tracks to 1 block ahead of the player, ...
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1answer
163 views

How do I ensure that my 2D side-scroller camera stays within the world bounds?

I have tried implementing a basic 2D sidescroller camera in XNA, but I don't want it to be able to scroll past the edges of my tile map! I tried to fix it, but when I get the left side working, the ...
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1answer
138 views

Draw character silhouette when not visible

I have a mesh representing my character. I want to give it a partially transparent greyish silhouette when other objects are blocking it from view of the camera. I'm using Ogre3D, and GLSL as a ...
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1answer
55 views

Camera Aligned To Sphere Surface

I am writing a planet renderer and have come across a problem that is really limiting the usability of the program. When I am on the planet (anywhere but the north pole) I cannot rotate the camera to ...
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1answer
64 views

How are scripted camera usually managed?

I noticed that many open games (think platformers, adventure, action...) have very complex cameras that appear to mix both automatic placement most of the time, and sort of pre-placed camera ...
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1answer
660 views

How to automatically render all opaque meshes with a specific shader?

I have a specular outline shader that I want to be used on all opaque meshes of the scene whenever a specific camera renders. The shader is working properly when it is manually applied to some ...
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2answers
317 views

Rotate around the centre of the screen

I want my camera to rotate around the centre of screen and I'm not sure how to achieve that. I have a rotation in the camera but I'm not sure what its rotating around. (I think it might be rotating ...
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3answers
66 views

2D Camera doesn't work when I have split my code into DrawableComponents

I have the following camera written: public class Camera { public Vector2 Position; Viewport Viewport; public Matrix Transformation { get { return ...
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1answer
938 views

How to set orthgraphic matrix for a 2d camera with zooming?

I'm using ID3DXSprite to draw my sprites and haven't set any kind of camera projection matrix. How to setup an orthographic projection matrix for camera in DirectX which it would be able to support ...
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1answer
134 views

3D Camera raytracing (PSM SDK) [duplicate]

I am currently creating a 3D Camera on the Playstation Mobile SDK (which is basically openGL with just a little bit of abstraction). The game I am trying to make is a 3D Tactical. That means my world ...
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1answer
393 views

Weapon as camera's child, rotation messed up

I put my weapon as a camera child, it works, but when i rotate my player it seems the weapon rotate a little too. I'll attach some images so you can see it. As you can see, when i look up i ...
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2answers
837 views

First person camera with Bullet Physics

Before integrating the Bullet Physics, the camera worked fine. But instead of using my own simple struct for transform data, I use rigid body structs provided by the physics library now. There are ...
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1answer
136 views

Optimize maximum performance “Frustum.contain ()” on XNA?

I wonder if it is possible to optimize the performance of "BoundingFrustum" requesting return of the visible elements that are found only on the part of the ground before the player .. Checker and not ...
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1answer
648 views

Camera in Flash

Im having a hard time trying to work out how to implement a smooth camera in flash. In something like openGL i would use a transformation matrix to move the camera around the scene. However with ...
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1answer
374 views

Tiled map seen from an angle

I have working code to display a tiled map. It's composed of a OrthogonalTiledMapRenderer and an OrthoGraphicCamera : camera.setToOrtho(false, WORLD_WINDOW_SIZE.x, WORLD_WINDOW_SIZE.y); ...
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1answer
733 views

XNA - moving the 3rd person camera

I'm having following problem: Can't set my camera to follow object from behind and rotate when I use left/right arrow. I've tried different tutorial and examples but it still doesn't work for me. ...
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1answer
432 views

OpenGL ModelView matrix

Hello I am trying to understand matrix operations behind OpenGL and I have some questions. 1- When we first create a simple window using glut and opengl, we use such a command below to draw a simple ...
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1answer
90 views

XNA 3D coordinates seem off

I'm going through a book, and the example it gave me seems like is should work, but when I try and implement it, it falls short. My Camera class takes three vectors in to generate View and Projection ...
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1answer
151 views

Camera wont stay behind model after pitch, then rotation

I have a camera position behind a model. Currently, if I push the left thumbstick making my model move forward, backward, or strafe, the camera stays with the model. If I push the right thumbstick ...
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1answer
488 views

Pitch camera around model

Currently, my camera rotates with my model's Y-Axis (yaw) perfectly. What I'm having trouble with is rotating the X-Axis (pitch) along with it. I've tried the same method for cameraYaw() in the form ...
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1answer
160 views

Averaging Camera Position

I'm making a camera which tracks the player. I am using a basic algorithm to calculate a position for the camera relative to the player. Then I am taking an average of this over the last x number of ...
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3answers
2k views

3D XNA Tracking Camera

I'm trying to implement a camera that tracks a 3D model in my game. I've taken a look at this MSDN article on creating a 3rd person camera, as well as experimenting on my own; but I don't get the ...
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1answer
332 views

How to prevent 2D camera rotation if it would violate the bounds of the camera?

I'm working on a Camera class and I have a rectangle field named Bounds that determines the bounds of the camera. I have it working for zooming and moving the camera so that the camera cannot exit its ...
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2answers
399 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 ...
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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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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 ...
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1answer
77 views

Libgdx 2D Game, Random generated World of random size, how to get mouse coordinates?

I'm a noob and English is not my mothertongue, so please bear with me! I'm generating a map for a Sidescroller out of a 2D-array. That is, the array holds different values and I create blocks based ...
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1answer
64 views

How to implement camera pan like in Maya?

I am trying to implement camera pan like the one in Maya. I've got it almost working. The problem is that the mouse cursor is moving faster than the 3d mesh (in fact I am moving the camera but I ...
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70 views

OpenGL/GLM Camera

I want to make a camera that can freely look and walk on X/Z plane and rotate 360 degrees. I'm using OpenGL and the lookAt function from the GLM library to create the view matrix. I've looked through ...