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

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Free camera rotation in 3D space

I'm using a view matrix to do camera movement and rotation. viewMatrix = new Matrix4f(); viewMatrix.setIdentity(); Matrix4f.rotate((float) Math.toRadians(rx), new Vector3f(1,0,0), viewMatrix, ...
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51 views

OpenGL ES 2.0 basic camera issues

I am having issues with the camera, I cant find how to invert the AXIS Now A point is 0,0,0 B point is 1,0,0 C point is 0,0,1 What I want is A point 0,0,0 B point 0,0,1 C point 1,0,0 ...
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394 views

LibGDX full screen display mode and camera resize

I'm creating a simple 2D platformer and I have problem with my camera y position when I enter full screen mode. But first here's my code screenY = Gdx.graphics.getHeight(); public void ...
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186 views

How do I rotate a cube around an axis, relative to the camera view?

I want to be able to rotate a cube, either by dragging vertically to rotate it around the Y-axis, or dragging horizontally to rotate it around the X-axis. However, when the camera is rotated 90 ...
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1answer
139 views

Pan camera within bounds of large image

I have a camera that I pan around a large image which works fine, however when I reach the end of the image I can keep panning on and on, forver. I have looked everywhere for an answer on how to ...
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91 views

Calculations for a camera system

I am building an interactive application in Starling for which a camera system is required. Since there is no existing camera system in flash and the addons for starling do not meet our requirements, ...
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73 views

Everything black except where there's a light

I have a camera in my scene with a map created at runtime: As you can see everything can be seen. Now I want the map to be invisible (black as the background) except where there are lights. How can ...
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191 views

Check if is object in camera field and not covered by other object

I know how to check if object is in camera view but how I can check if that object is cover by something elese? In my case I want to turn on or off some effect when I look at light. At this moment my ...
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2answers
112 views

Stop Lerp at relative location?

In my Unity 2D platformer, I'm trying to move the camera down a bit when the character is crouching but not moving. I've done this with the following: cameraPosition = ...
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1answer
396 views

2D game with angled top-down camera perspective [closed]

I want to create a game similar to binding of isaac, a slightly angled top-down 2D game. In binding of isaac, the character moves and shoots along a 4-way path, so when he is shooting towards East, ...
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63 views

Aligning Camera to Rectangle

I'm working on a game in Java, and I'm having some trouble with finding the correct camera position. I've already made a Rectangle that shows exactly where I want the camera to be, and at what scale: ...
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3answers
198 views

Backround turning, follow the character

In my Unity2d-platformer, I need background to follow the character, so I just attach it. And when character turn left from right (or right-to-left), background turn too. How can I make my ...
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1answer
501 views

libgdx - Box2d debug draw not correct

I have a problem where the bodies in my debug draw does not draw correctly, take a look: As you can see, there is some space between the dynamic body and the ground. I have checked the contact ...
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48 views

How to compute the forward facing direction from three angles and then translate along it?

Given: float yaw, pitch, roll; How does one compute the forward direction: vec3 forward = computeForwardFromEulers(yaw, pitch, roll); Next, I would like to use this information to translate an ...
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1answer
371 views

Distortion problem with perspective projection

For various reasons – partly educational, partly technical – I'm writing a 3D game engine from scratch, using OpenGL 3.0; aiming for Core Profile, eventually, so of course I'm using a custom matrix ...
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1answer
139 views

Sprites and Box2d

I'm starting to see how box2d works now, except I dont know how to scale the screen to diffrent screen sizes and how i can convert Sprite sizes to box2d units. I know box2d uses meters and such, but ...
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199 views

Camera Movement Smoothing

I am trying to smooth a camera I create in my game, but I can't seem to find a way to actually do this correctly. What I have : //Calculate the "current" Forward vector var cameraForward = ...
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1answer
167 views

GameObject is only rendered when it has a negative z scale

I have an orthographic camera that looks like this: I create 2d polygonal meshes that have uniform z values in their vertices. I use Camera.ViewportToWorldPoint() to map these viewpoint vertices to ...
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1answer
775 views

Camera Rolling when Implementing Pitch and Yaw

I am implementing a camera in opengl for an android game and am having problems getting the pitch/yaw/roll of the camera correct. I have read many tutorials on quaternions and have implemented a basic ...
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1answer
397 views

How to combine the camera that follows the player and the camera shake effect in Unity?

I need to combine both camera that follows the player and the camera shake effect in the same moment. The problem is in that, if I make the shake effect for the camera, then the camera doesn't follow ...
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1answer
156 views

3D Translations relative to 3D Rotations

I'm trying to program camera movement to be relative to camera rotation. (Forward is always forward, regardless of pitch, yaw, and roll) I want to be able to move forward, backward, left, right, up, ...
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1answer
201 views

XNA: Camera's Rotation and Translation matrices seem to interfere with each other

I've been following the guide here for how to create a custom 2D camera in XNA. It works great, I've implemented it before, but for some reason, the matrix math is throwing me off. public sealed ...
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1answer
202 views

Doing a turntable camera animation on a world matrix rather than view matrix

I have a camera class that contains a 4x4 view matrix as a member variable. Most of my camera controls work fine when doing them directly on the view matrix. In an attempt to unify all of my scene ...
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1answer
132 views

TiledMap not drawing completely [closed]

While attempting to constrain camera scrolling to within the TiledMap I discovered that it seems the renderer for the map is not drawing the entire map. The map is 1600x960px so one would assume the ...
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1answer
701 views

Change players state and controls in-game

I'm using Unity 3D Let's say the player is an ice cube. You control it like a normal player. On press of a button, ice transforms (with animation) into water. You control it completely different than ...
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1answer
77 views

Why doesn't my game start in landscape mode?

I want my game to run on all Android devices in LANDSCAPE_FIXED mode, but this mode works only for some screen resolutions. PORTRAIT_FIXED works well for all devices. I'm testing this on and emulator. ...
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1answer
687 views

Background Sprite Setting

For my 2d game, I want to set background image. So that I am using multiple background images for that purpose. But it can't set correctly on screen that illustrated in following image. Also for ...
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1answer
386 views

Free Look Camera Like Arma 2 while pressing ALT [closed]

I'm trying to create a simple script that give me the possibility to rotate the camera while pressing a key. So, in a pseudo-code way, how I can intercept the Input event and limit the player's ...
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1answer
133 views

Incomplete mesh using DrawIndexedPrimitives after rotating mesh

Through help on this site I was able to draw the triangles of an unrotated, nonscaled nontransformed mesh created in Blender and exported to OBJ, accurately imported through Assimp and rendered in XNA ...
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1answer
305 views

Strange quaternion camera streching in WebGL

So after a lot of researching about quaternions I almost got the quaternion camera working. Almost, cause it rotates in a proper way only in a vertical axis. Other rotations stretches and deforms the ...
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1answer
665 views

First person camera world matrix issue (in THREE.js and webGL)

I'm trying to create a Portal-like effect in webGL using THREE.js. I have two scenes connected by a pair of portals. The view of the 2nd scene in rendered inside the 1st portal using stencils and ...
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1answer
1k views

How to get plane rotation by known normal vector

I have a FPP quaternion Camera and Plane with known normal vector. I want to find the orientation of this Plane so I can replace it to the Camera orientation to put the camera forward vector to a ...
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3k views

How to clamp player movement correctly?

I have a 2D space shooter game. I looked up some questions from unity community and came across this solution. Below is the code for my player's movement: //horizontal <- || -horizontal -> ...
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756 views

What are the correct angles in the Top-down perspective?

In the following picture it says that in the Top-down perspective the angles are 90°, but if it would be 90° then you shouldn't see the front of the building and the roof at the same time... So what ...
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1answer
609 views

moving first person camera with the mouse on right click

I am new to game development and I am trying to get the game input working. I have successfully got all the movement keys for walking/running/looking around working; however, I am having a terrible ...
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1answer
1k views

XNA 2D Camera, zoom into player

My 2D camera follows the character fine without any zooming. However, when I tried adding a zoom feature using the Matrix.CreateScale(), the camera no longer follows the character properly. public ...
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3answers
295 views

OpenGL camera moves faster than player

I have a side scroller game made in OpenGL, and I'm trying to center the player in the viewport when he moves. I know how to do it: cameraX = Width / 2 / TileSize - playerPosX cameraY = Height / 2 / ...
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1answer
300 views

Obtain rectangle indicating 2D world space camera can see

I have a 2D tile based game in XNA, with a moveable camera that can scroll around and zoom. I'm trying to obtain a rectangle which indicates the area, in world space, that my camera is looking at, so ...
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1answer
399 views

OpenGL camera translate and rotate on cameras local axis

How can I make rotation and translation on a local camera axis in OpenGL? I want to make camera like "aeroplane" camera with a pitch yaw and roll. I want to have good explanation on everything! Can ...
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1answer
587 views

XNA Zoom in/out on model instead of scaling the model

I'm trying to implement zoom in/out functionality into my game. I can change the cameraDistance value with the Z and X keys. Instead of zooming, it looks like the model is scaled smaller or larger ...
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1answer
489 views

XNA Arcball and moving model - the model is altered instead of the camera

I'm trying to implement an arcball type camera, I've got all controls working very nicely. I can rotate the X/Y axis with my mouse and zoom in and out with the Z/X keys. The problem is, that the ...
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1answer
240 views

Orbiting a camera around the Y axis whilst remaining up

I've been having difficulty with a problem which I thought was going to be a simple solution. I have a camera facing downwards on a character. The can camera be lowered and when it's lowered it ...
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votes
1answer
806 views

Android OpenGLES 2 ray picking, resulting coordinate jumpy in certain spots?

I am trying to implement object picking based on touch coordinates via an intersecting ray test. I am having trouble finding information on converting the touch coordinates to the coordinate system ...
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2answers
151 views

Moving camera along generated terrain?

I'm generating my terrain on the GPU, using diamond square subdivision (no height map involved). How can I anchor the camera's position to always be on top of the generated terrain? Thanks
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2answers
207 views

Min. Distance for Spotlights in Ogre3d?

I have a simple scene with only one empty box. Within that box I have the camera attached to a scene node, which the user can move (translate/rotate). Additionally a spotlight is attached to the ...
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1answer
390 views

How do I create a camera for a strategy game?

How do I make a camera for a strategy game? Think something in the style of Warcraft 3, so you can lower the camera angel and view the world in a somewhat 3D format. Do I need to have some coordinate ...
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votes
1answer
1k views

XNA - move camera over tilemap

I am trying to build a game based on Advance Wars in XNA. I am so far where the tiles are placed on the screen, except here starts my problem. During the game, I ofcourse want to move the camera ...
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2answers
1k views

Making a Camera look at a target Vector

I have a camera that works as long as its stationary. Now I'm trying to create a child class of that camera class that will look at its target. The new addition to the class is a method called ...
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1answer
304 views

Limit the amount a camera can pitch

I'm having problems trying to limit the range my camera can pitch. Currently my camera can pitch around a model without restriction, but having a hard time trying to find the value of the ...
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1answer
51 views

Camera changes view when controller connected

I have a weird situation. I have a model set to 0 for X,Y and Z. My camera's position is set to: 0 (X-value, but updates when the model moves around) the model's height + 20f (about the same level ...