Game worlds are viewed from a camera, which is the viewpoint from which the game world is observed from.
1
vote
0answers
30 views
How would I warp a mesh with code?
I recently asked a question about putting a camera at the head of a 3D human model here and it worked out rather well and whatnot, but there is still a problem that bothers me:
How would I ...
1
vote
0answers
16 views
Scale aware adaptive camera zooming
I would like to implement an interactive zoom on a 3d object with mouse wheel.A naive approach is simple where you just scale camera marix Z poistion or modify FOV.But I would like the zoom scaling to ...
3
votes
2answers
149 views
Three Screens = Three Cameras?
I have three screens which are at an angle to each other. Basically, the left and right cameras need to move relative to the main camera in such a way that it would look like each screen is a window ...
0
votes
1answer
41 views
Lock mouse in center of screen, and still use to move camera Unity
I am making a program from 1st person point of view. I would like the camera to be moved using the mouse, preferably using simple code, like from XNA
var center = this.Window.ClientBounds;
...
1
vote
0answers
24 views
Three.js camera turning leftside right
In Three.js I am trying to implement an orbiting camera can be rotated around the x and the y axis. I am using these two functions:
function rotateX(rot) {
var x = camera.position.x,
...
1
vote
1answer
45 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 ...
4
votes
1answer
63 views
Lighting computation viewing direction
This is something that's really cooking my noodle. When I'm computing the light response for a material in my fragment shader, I'm using the standard 3 normalized vectors, in eye space: fragment ...
0
votes
1answer
32 views
Libgdx Do a fixed rotation for orthographic camera
Im trying to rotate my orthographic camera in the render loop to a fixed angle, but I can only make the camera spin with the code I got:
in the create
OrthographicCamera camera = new ...
0
votes
0answers
15 views
Is it possible to mask over CameraUI AS3?
My idea is to use the CameraUI to take a photo and then transpose that photo onto a blank sprite. So I want to have a mask layer over the CameraUI to line up the object with the size of the sprite. ...
1
vote
1answer
71 views
How do I create a camera?
I am trying to create a generic camera class for a game engine, which works for different types of cameras (Orbital, GDoF, FPS), but I have no idea how to go about it.
I have read about quaternions ...
1
vote
1answer
74 views
How to prevent showing outside of Game Map ( Cocos2D-x ) ( Scrolling game )
I'm trying to make a tower defense game and it can zoom in/out and scrolling over my world map. How to scroll over the game and how to restrict it not to show outside of my map(black area).
At below ...
14
votes
2answers
951 views
Camera vs Viewport
I'm don't have a clear understanding of what precisely is the difference between the camera coordinates and the viewport coordinates. Can anyone please clarify?
0
votes
1answer
54 views
Implementing Camera Zoom in a 2D Engine
I'm currently trying to implement camera scaling/zoom in my 2D Engine.
Normally I calculate the Sprite's drawing size and position similar to this pseudo code:
render()
{
var x = sprite.x;
...
0
votes
1answer
111 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 ...
1
vote
1answer
111 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 ...
2
votes
1answer
53 views
Why are my 2D world click-positions offset after camera movement?
I'm writing a 2D game engine. I need to add a camera to my world that can zoom in and out as well as move away from its initial position at (0,0) at the center of the world.
The main issue can be ...
0
votes
0answers
47 views
Issue with turntable rotation openGL
I am trying to implement turn table like rotation in my openGL app.
In turn-table like rotation, z-axis is not supposed to roll. But in my app z-axis rolls like anything when I try to rotate the ...
1
vote
1answer
110 views
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 ...
4
votes
3answers
189 views
Why does Unity in 2d mode employ scaling and the default othographic size the way it does?
I previously used SFML, XNA, Monogame, etc to create 2d games, where if I display a 100px sprite on the screen, it will take up 100px. If I use 128px tiles to create a background, the first tile will ...
0
votes
0answers
62 views
How do I find the camera direction vector for 3D sound purposes? (C++, DirectX)
Question
I'm trying to make a sound class for playing 3D sound effects with DirectSound and DirectX, without using DirectSound's 3D libraries. The plan is to have every game object constantly play ...
0
votes
0answers
20 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
2answers
74 views
Smooth camera movement between followed objects
I have 2d game where my camera follows the player. Simplified, it copies the player position as its own.
Now I have some other object in the game, that I want to camera to follow. This is easy enough ...
0
votes
1answer
98 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 ...
0
votes
1answer
75 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 ...
1
vote
1answer
112 views
LibGDX keep camera within bounds of TiledMap
I have a simple TiledMap which I can render fine. I have a player hopping (with Box2D) around and my camera follows the player around:
cam.position.set(
player.position().x * Game.PPM + ...
0
votes
2answers
67 views
Why does my side-scroller character move in the wrong direction?
I'm trying to understand why my rectangle moves in the opposite direction I want it to.
I have a float for translation:
glTranslatef(translate_x, 0, 0);
if ...
0
votes
1answer
122 views
openGL Camera setup for Zoom in/out centered at point under cursor
I am trying to implement a zoom in/out navigation mode in a openGL 3dViewer. I was able to implement zoom functionality centered at screen center just by moving eye towards the center in perspective ...
0
votes
2answers
66 views
Player's camera, how to obtain smooth movement
In a 2D platformer, I have a player that can move both horizontally and vertically. I also have a camera that moves in relation to player. In every update I do this:
public void RepositionCamera()
...
0
votes
1answer
48 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
103 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, ...
1
vote
5answers
335 views
What is this type of camera called?
I am trying to find a name like "perspective view" of how a camera like this is called:
It is 2d and 3d at the same time. I'm having a hard time trying to find the name.
0
votes
2answers
58 views
what function creates rotation effect in three.js?
which part of the code is responsible for the rotation in this example? Is it the camera or the scene itself?
http://threejs.org/examples/#canvas_camera_orthographic
0
votes
1answer
76 views
Camera rotation around point, but without centering
Let's say i have the following:
Point somewhere in space
Camera with position and orientation (up, right, forward)
I want to rotate camera around the point, but also keep this point in same place ...
1
vote
0answers
74 views
Generating transformation matrix for 2D camera with pan/zoom/rotate
Question
How do you implement a camera with pan/zoom/rotation for a 2d game? Is it acceptable to multiply together a series of transformation matrixes to generate a final transformation matrix that ...
0
votes
0answers
125 views
Shifting the camera and setting a new scene when using Box2D
My jsFiddle:
// START -- MOVE CAMERA
var p = new b2Vec2();
p = (ball.body.GetWorldCenter().x) * physics.scale;
pos.push(p);
var length = pos.length;
var s = (pos[length - 1] - pos[length - 2]); //in ...
0
votes
0answers
45 views
Focus a turntable style camera on an object
I have a turntable style camera in the maya / blender / alembic / opensubdiv example. I want to be able to match the camera translation to any objects translation pivot point in the scene and then ...
4
votes
1answer
199 views
OpenGL rendering looks squeezed
I am rendering bunch of cubes of unit size, but for some reason they look like they are squeezed a bit in the screen-space y axis. Why is this?
My projection matrix:
Projection = ...
2
votes
1answer
62 views
Camera roll has no effect
Consider my following (abstracted) C# w/ SharpDX code:
class Game
{
Camera _camera = new Camera();
private void Window_KeyDown(object sender, KeyEventArgs e)
{
// Roll
if ...
0
votes
2answers
106 views
Java: Camera Rendering
Which is the best way to detect whenever an object or tile is inside the Camera Range so I can draw it? With "best" I mean more efficient, and quicker.
Thanks
1
vote
1answer
170 views
How do I fix my planet-facing camera?
Summary
I'm having trouble implementing a camera controller suitable for first person use around a planet.
The camera needs to be oriented correctly according to gravity (vector from camera ...
0
votes
0answers
47 views
3D model editor manipulators
I'm trying to make my own 3D model editor to better learn 3D programming. I have my translate manipulators and I'm trying to calculate the Vector2 that the mouse would have to move in order to move an ...
0
votes
2answers
103 views
FPS camera specification
I remember I once composed a FPS viewing transformation, as a composition of 3 rotations, each with an angle as a parameter. The first angle specified the left/right rotation around the y-axis, the ...
0
votes
0answers
207 views
Irrlicht - Camera rotation like FPS
I'm constructing a game in OpenGL and initially I started using GLUT for the general purposes. However, later on I bumped over the problem of 3D model import and, after so many time trying to import ...
2
votes
0answers
56 views
How to set “near” value properly?
Usually, the camera's near value is set to sth like 0.1f. However, this (assuming 1.0f = 1 metre) makes everything that's closer than 10 cm from the camera invisible. On the other hand, when working ...
0
votes
1answer
86 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 ...
0
votes
0answers
76 views
Box2dLights rendering in bigger scale
So basically my box2dLights are rendering in wreid places.
The circle in center is my player and as you can see lamp which should be aligned to player is in the right-top corner.
my code:
package ...
0
votes
1answer
108 views
On Screen Coin Animation
am working with side scrolling skater game. I want to perform coin animation such that as player collect coin it moves upside and attach with currency sprite.
My main character and coin present in ...
2
votes
1answer
190 views
3D Camera Rotation
Please, forgive me, but I need help and I've been stuck on this for a few weeks now, I'm making no progress and everywhere I go and I see a different answer, everything I try doesn't work. I've had ...
1
vote
0answers
73 views
3D Camera Y-Axis wrong angle
I am trying to build a camera class, though I am running into a problem. When I move the camera above/below, and try to move towards the ground, I am moved off in what seems to be about 45 degrees in ...
0
votes
1answer
53 views
How to realize a camera that is following the player [duplicate]
I want to create a simple space game, like Asteroids. Unlike Asteroids, the map is supposed to be larger than what the player can see:
The grey part is what the player can see in the game window, to ...
