Qt is a cross-platform application development framework widely used for the development of GUI programs.

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7
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2answers
666 views

OpenGL or OpenGL ES

What should I learn? OpenGL 4.1 or OpenGL ES 2.0? I will be developing desktop applications using Qt but I may start developing mobile applications in a few months, too. I don't know anything about ...
6
votes
1answer
176 views

OpenGL flat shading of non-planar polygons using TBOs

I'm trying to implement flat shading for non-planar polygons (using a single normal vector per polygon) based on buffer textures, but I can't seem to figure out how to set up things correctly. The ...
6
votes
2answers
647 views

What resources are available for using Qt as a toolkit for games [closed]

Qt is an excellent application toolkit and overall the best for C++. While some large projects use Qt (KDE for example), I haven't seen many games using it. So I decided to make my own. But what does ...
5
votes
1answer
589 views

Why do my game objects jitter when moving the camera?

I'm moving from Qt Widgets' QGraphicsScene to Qt Quick's QQuickItem for rendering my game objects. One of the things this involves is setting up a scene and the view onto that scene, as this was ...
5
votes
1answer
555 views

Working Qt controls in a 3d environment

I need some advice from a Qt expert. The background: I have a 3D engine (ogre3d) working in concert with Qt. The 3D Content is displayed in a widget (using a custom OS window in the client area). I'm ...
4
votes
3answers
7k views

What are the advantages and limitations of using Qt for game development? [closed]

I know there is already a thread asking for example 3d games written using Qt. What I'd like to have a discussion about is whether or not Qt is a good framework for game development. In my experience ...
2
votes
2answers
142 views

Movement through forces and impulses

I'm trying to get some decent-looking movement in my game using this tutorial. In the image below... something crazy is going on. What should happen is that the NPC should start on the left side of ...
2
votes
1answer
1k views

Is it possible to billboard a sprite using a transformation matrix?

None of the current topics on billboarding seemed to answer this question. But, given a sprite (or quad) that has it's own 4x4 transformation matrix a camera with a view matrix (a standard 4x4 ...
2
votes
3answers
2k views

Application toolkits like QT versus traditional game/multimedia libraries like SFML

I currently intend to use SFML for my next game project. I'll need a substantial GUI though (RPG/strategy-type) so I'll either have to implement my own or try to find an appropriate third party ...
2
votes
1answer
497 views

Most efficient way to implement walls and shadows in 2d

I am making a 2d top-down programming game similar to robocode. There will be up to 1000 walls (lines) in the arena, and up to 50 robots. Each robot can see in a 90 degree arc, and cannot see through ...
2
votes
0answers
54 views

Moving and rotating to a position with forces and impulses [closed]

Carrying on from this question, I'm still stuck trying to implement the behaviour mentioned in this tutorial. My movement has improved slightly thanks to the help I received: But the character ...
1
vote
2answers
1k views

QT for lan game devleopment

I am making a small game for a course in my school and was planning on using QT to build it. I have worked with pygame[last year] and turbo c++[about 5 years agao] to make games, small easy stuff. ...
1
vote
1answer
40 views

How to enable depth test with QOpenGLWidget? It renders black screen

Currently I am writing a small application with Qt and OpenGl and I choosed QOpenGLWidget for rendering graphics. That's how I declared my widget: class GLWidget : public QOpenGLWidget, protected ...
1
vote
0answers
44 views

Planning to start a right game design pattern [closed]

I'm planning start a game development (I did develop many promo games but now I will start my games with the best code design patterns). I will use QT Creator with C++14, OpenGL and some physical ...
1
vote
0answers
230 views

Box2D Qt wrong collisions

I am working on a simple Box2D game (with Qt), but my objects don't collide correctly: As you can see on the picture, objects try to go through each other and slide over. My b2World: b2Vec2 ...
1
vote
0answers
349 views

What is the right way to use a QStateMachine for a text adventure game? [closed]

I have seen a couple topics about this already but they were a bit vague for me so I decided to make this. I'm working on a little adventure game just for fun in Qt, its basically just text on the ...
1
vote
1answer
512 views

How to have qt5 work on desktop like on mobile devices (es2, correct glsl version)?

I am looking for help/information concerning this issue : My work: I have an opengl es2 render engine that works on an iOS app. I almost managed to make it work by calling the same openGL rendering ...
1
vote
0answers
359 views

How to make an oscillation move on opengl qt

I'm trying to make a character make an oscillation move. That is, the character will start by rotating to a certain angle, say 60 degrees, and then slowly come back to an upright position then rotate ...
0
votes
2answers
4k views

looking for simple 3d games made with Qt [closed]

Hi i need to make simple education games in 3d for that i need GUI and editor like function this is no problem . but the openGL stuff i need to learn by example. do you know places where i see ...
0
votes
1answer
172 views

How to rotate a triangle towards the point in Qt?

I have an issue with items rotating. I have a point and a triangle which needs to be rotated with its apex point towards the taregt point. The right side of the picture represents how it is should to ...
0
votes
1answer
73 views

QT SFML Integration Trouble

I have been having trouble linking sfml to qt creator I have downloaded the pre-compiled libraries and headers for MINGW on the sfml website here : http://www.sfml-dev.org/download/sfml/2.3.2/ This ...
0
votes
0answers
40 views

Qt 5 - QOpenGLWidget not updating the screen

I'm creating a level editor for my game using Qt for gui and i'm in really early stages. Right now i'm trying to dynamically add objects ( entities ) on screen when i click a button. So far the ...
0
votes
0answers
13 views

Config SFML in QTCreator with file.pro

I know that are a method with cmake , but i wouldlike config my project in Qtcreator usinig qmake and my doubt is what my file .pro must have for work it ?. I will run in windows , maybe later linux . ...
0
votes
1answer
249 views

OpenGL shows a black screen

I am new at OpenGL, I try this example: http://stackoverflow.com/a/31524956/4564882 but I get only a black widget. The code is exactly the same. this is the code associated to the QopenGLWidget: ...
-1
votes
1answer
109 views

Smooth radial collision

I'm trying to make collisions smoother in my game. Currently, entities will stop completely when they collide with an obstacle. I saw the following article recently: http://www.gamedev.net/page/...
-1
votes
1answer
255 views

How to go about front end UI to main Game Engine and then to Game Over Phase [closed]

I am about to complete my first ever game. I have used Qt for windowing and OpenGL for actual game logic. I am confused about .. things which are related to design so according to FAQ, these kinda ...