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

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2
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4answers
534 views

Moving camera, or camera with discrete “screens”?

I'm making a game with a friend, but having trouble deciding on a camera style. The basic idea for the game, is having a randomly generated 2-dimensional world, with settlements in it. These ...
2
votes
1answer
44 views

How to calculate if a point is contained in rectangular camera viewport with rotation?

I am working with my camera, and am trying to improve it so that I can calculate if a world point is on screen, taking rotation into account. Currently, my camera rectangle is calculated as so: ...
1
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0answers
19 views

Error in projecting coordinates from FitViewport to screen in LibGDX

i'm using a FitViewport to render my "game world". Viewport virtual dimensions are fixed 400x240. I use viewport.unproject method to scale input touches from screen coordinates to world coordinates, ...
11
votes
4answers
5k views

Why the clip space in OpenGL has 4 dimensions?

I will use this as a generic reference, but the more i browser online docs and books, the less i understand about this. const float vertexPositions[] = { 0.75f, 0.75f, 0.0f, 1.0f, 0.75f, ...
1
vote
1answer
195 views

reflection plane 3d

Hey there I'm trying to create a plane that can have a texture on it and reflect the 3d elements around it. for example a plane with a laminate floor texture and above it a cube rotating. I want the ...
0
votes
1answer
104 views

How can I implement a quaternion camera?

I am trying to implement a quaternion camera in OpenGL 3.3. I have so far used these tutorials below however I have a bug which I cannot work out how to fix. ...
1
vote
1answer
243 views

Camera lookAt target changes when rotating parent node

have the following issue.I have a camera with lookAt method which works fine.I have a parent node to which I parent the camera.If I rotate the parent node while keeping the camera lookAt the target , ...
0
votes
0answers
45 views

LibGDX with Parallax Camera, unable to accurately select objects

So, basically I borrowed the ParallaxCamera test that LibGDX provides and got the camera set up rather nicely. However, I noticed that when I specify a speed other than 1, my game objects shifted ...
0
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1answer
123 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 ...
1
vote
1answer
85 views

Unity free look camera on two axes. How do I do it?

I'm new to Unity and c# but have programming experience... I have a a simple "game" in Unity that shows one sphere orbiting another. How do I allow the camera to be moved by the user in a "free ...
1
vote
1answer
82 views

What is next to interpolate camera position with smooth speed changes?

I am working on a path camera to be used in demo playback. (3d game) The spline math used is catmull rom. I am on my second attempt to get constant position speed :( (someone else is doing rotation). ...
6
votes
3answers
2k views

Detect if a sprite has left the camera in libgdx?

Is there a method to know if a sprite has left the camera of the stage? or I have to do my operations? :P
1
vote
1answer
62 views

Why is the camera tilting around the z axis when I only specified x and y?

My goal is to program a camera to point towards the mouse cursor. I attached the following script to the Main Camera. using UnityEngine; using System.Collections; public class CameraController : ...
1
vote
2answers
195 views

Is using camera and viewport in Libgdx always necessary?

I understand that camera and viewport are important to keep virtual measurement units and handle different aspect ratios and resolutions when building games with worlds bigger than the screen (e.g. ...
1
vote
0answers
24 views

Quaternion camera in 3D space with Pitch and Yaw

I am having trouble implementing a quaternion camera that can fly freely in 3D space with only Pitch and Yaw rotations. It works fine except when you look up or down and then try to look left or ...
-1
votes
1answer
37 views

Camera rolls instead of looking up and down

I got a small script from the official Unity forum which is: public class MouseRotationUpDown : MonoBehaviour { public float RotationSpeed = 5; void Update () { ...
0
votes
1answer
65 views

How to put the “camera” inside a cube in OpenGL

I'm really new to OpenGL and can't seem to figure out how to put the "camera" inside the cube I've created so that I can move in an FPS-like style. I tried to use gluLookAt and gluPerspective but I'm ...
-1
votes
1answer
58 views

Why is this unity camera moving in weird directions?

I have the following script public class CameraScript : MonoBehaviour { public bool AllowZoom; public float zoom; public float Speed; Transform board; void Start(){ ...
2
votes
1answer
92 views

2D Camera sizing and movement

Apologies if this is a basic question, or been asked a 1,000 times in the past... I'm new to Unity, and having problems understanding some of the basics to do with 2D cameras (orthographic), and ...
4
votes
1answer
151 views

Convert large range of numbers to a smaller scale

What is a good formula to use in order to relate two different scale distances to each other? For example, I have a camera that can have a minimum size of 2 and a maximum of 10. I would like the ...
1
vote
1answer
87 views

Camera movement constrained to pixel boundaries

So a friend and me, we are currently making a game in C# using XNA. We are trying to get the camera to move in full pixel motion, but we just don't get it right. This concept is hard to explain, but ...
0
votes
1answer
75 views

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, ...
3
votes
2answers
701 views

3D zooming technique to maintain the relative position of an object on screen

Is it possible to zoom to a certain point on screen by modifying the field of view and rotating the view of the camera as to keep that point/object in the same place on screen while zooming ? Changing ...
2
votes
1answer
82 views

What can cause shadow slicing while moving camera?

Can't explain better than with video: https://youtu.be/4nIMIL6w-0M The effect I'm trying to achive is a simple fog of war. See, I have a point light casting shadows on a plane. The plane has a ...
5
votes
3answers
2k views

Perfect FPS camera angle

I am making a multiplayer FPS and I am in search of some helpful tips on the perfect FPS camera angle. Because it is a multiplayer, I am making a full body model holding the gun, I find, however, that ...
3
votes
2answers
62 views

Unity Change Sceneview to camera view

On selecting camera, I get the camera preview. In Unity, while editing the scene, I wish to switch in such a perspective view that is exactly visible by the main camera. Is there a short cut to ...
2
votes
4answers
5k views

2D camera perspective projection from 3D coordinates — HOW?

I am developing a camera for a 2D game with a top-down view that has depth. It's almost a 3D camera. Basically, every object has a Z even though it is in 2D, and similarly to parallax layers their ...
2
votes
1answer
54 views

DirectX is the camera a point or a plane?

I've built an application in SlimDX using an orbit camera. Currently I treat the position of the camera as a singular point in space. I've noticed my projections from 3D space to 2d space are off by ...
0
votes
1answer
72 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. ...
0
votes
1answer
37 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 ...
2
votes
1answer
356 views

delay camera xna

I read this tutorial http://www.riemers.net/eng/Tutorials/XNA/Csharp/Series2/Camera_delay.php but i didnot unsterstand it. Is there another way to delay the camera position movement without this ...
0
votes
1answer
232 views

How to move the camera in XNA only after few moments?

I made the camera position 10 units from an object, but not behind it. I dont want the camera position behind the object right away when it rotates, I want that when I will rotate the object, the ...
3
votes
2answers
201 views

Camera placement sphere for an always fully visible object

Given an object: With the bounds [x, y, z, width, height, depth] And an orthographic projection [left, right, bottom, top, near, far] I want to determine the radius of a sphere which allows me to ...
0
votes
1answer
129 views

Move camera from wherever camera is to pinned point

So, I need to switch/ move/ animate camera from point X (not point A,as I don't know where the camera is at that momemnt) to point B (place where you want your camera to move). This is for ...
2
votes
1answer
560 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 ...
1
vote
1answer
52 views

Why value 1 in OrthographicCamera viewPort width?

So, I read that camera = new OrthographicCamera(1, h/w); creates a camera with an appropriate width and height for the field view.. However, I can't understand that value 1 for the viewport width, ...
5
votes
1answer
151 views

What direction is forward when the rotation is (0, 0, 0)?

I'm representing the rotations of my actors (or gameobjects) with euler angles (one float for each axis). And I've always considered the vector (1,0,0) (x,y,z) to be the actor's direction if all ...
0
votes
0answers
60 views

WebCamTexture.width and height returning 16,16 unless reinitialized

I am trying to store a picture from a camera with WebCamTexture. The function Savepicture(string path) uses a Texture2D to set pixels retrieved from the WebCamTexture class field, I end up getting a ...
1
vote
1answer
28 views

6DOF camera: inverted yaw and roll when orientation changes

Whenever I change the orientation of the camera, yaw and roll become inverted (or correct); the strafing, movement and pitch do remain correct however. Can you tell what is causing this and how to ...
0
votes
1answer
80 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 ...
0
votes
1answer
244 views

World Location issues with camera and particle

I have a bit of a strange question, I am adapting the existing code base including the tile engine as per the book: XNA 4.0 Game Development by example by Kurt Jaegers, particularly the aspect that I ...
0
votes
2answers
198 views

A 2D Camera Follow Script That Does Not Rotate?

I am attempting to make a 2D racing game. So far I have a player car (sprite) and a main camera. I would like to know how to make the main camera follow the player car while still showing signs of ...
0
votes
1answer
51 views

Given a constant rotation and target point, find position so that point will be in camera center

Given a fixed rotation and a target "center" point, how to I find the position the camera should be in so that that point is the center? LookAt changes the rotation keeping the position constant. ...
0
votes
1answer
82 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 ...
0
votes
0answers
162 views

Problems with First Person Camera in C++ OpenGL

I'm building a first person camera for my application but I'm having a couple of problems relating to moving the camera. In general, I have 2 vectors, one for the camera's position and one for the ...
0
votes
0answers
62 views

OpenGL Diffuse Lighting Issue

I seem to have a problem in my OpenGL scene where if I (the camera) am looking at an plane it's brightness changes depending on what angle I am to the plane. It seems as though the camera is a source ...
0
votes
1answer
83 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, ...
0
votes
1answer
51 views

In Unity, what does the camera script's “Behaviour missing” error mean?

I started in Unity few days ago and made a cube with a tank control style. Now I'd like to create controls similar to 3D fighting games (Gunz, Blade Symphony, …): Control body direction with the mouse ...
0
votes
1answer
95 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 ...
0
votes
0answers
32 views

Rotate the camera on a given angle

Good day! I apologize in advance for my bad english. The task is as follows: "On the stage there is a camera and a gun with rays when a ray gun out of sight of the camera (vertical) is required to ...