C++ is a statically typed, free-form, multi-paradigm, compiled, general-purpose programming language.

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1answer
267 views

How to convert OpenCV camera capture to Irrlicht texture without killing fps?

I am looking to include images captured from the users webcam into my application so I've been looking into using OpenCV to capture from the webcam and then render it in Irrlicht. I've created a basic ...
0
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1answer
70 views

FindNextValidTechnique fails

My effect file compiles successfully, but FindNextValidTechnique fails. Technique part of the shader: technique Diffuse { pass Pass0 { VertexShader = compile vs_2_0 ...
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0answers
43 views

Tetris implementing rotation

I am currently at the last stage of the Tetris Clone using SDL library, the only thing left is rotation. For each piece I have a separate class, and in order to move the pieces down I use a method: ...
1
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3answers
1k views

How do I determine the look-at vector of a free-look camera?

I'm trying to create a free-look camera with DirectX 10. I've figured out how to get the directions for forward and back and left to right. However, I don't know how to rotate the look-at vector of ...
1
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0answers
28 views

How to make expanding ring with constant thickness?

I need to generate this burst or (donut-shaped) pulse. I'm having a difficult time how to generate such shape. At first, I was thinking of scaling the image but that didnt work out because the line or ...
1
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2answers
373 views

What's the most efficient way to deal with in-game messages in Allegro 5?

I have a little 2D game made with Allegro, and I want to introduce strings during gameplay. For example, I've just made it so a key is needed to open a door, so I'd need some tutorial text to appear ...
0
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1answer
44 views

Parsing .OBJ to fit the gldrawelements() call. c++/opengl

I'm struggling trying to get this to work like it should. Ive been able to make an obj loader that fits the glDrawArrays() call, with uv and facenormals, but when trying to modify it to fit ...
2
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1answer
55 views

Set the name of an animation in collada to be used by AssImp

I am using the collada file format to contain my model and animation but when I use AssImp to load the file the name will be empty for the animation. Where is the name for animation set on the collada ...
4
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0answers
56 views

Diamond-Square algorithm output is random and noisy

I have implemented a rough interpretation of the Diamond-Square algorithm in C++ to create some semi-realistic fractal terrain, but the output just seems like a random y value at each point rather ...
0
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2answers
221 views

Render specific part of a texture in OpenGL (2D Sprite Sheet)

I've looked at this answer to find out how to render just a part of a texture: http://stackoverflow.com/questions/6884285/c-opengl-render-part-of-an-image I tried that, but the problem is, this is how ...
2
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1answer
1k views

glsl shader to allow color change of skydome ogre3d

I'm still very new to all this but learning a lot. I'm putting together an application using Ogre3d as the rendering engine. So far I've got it running, with a simple scene, a day/night cycle system ...
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1answer
219 views

AABB Collision Problems in SFML

I have a problem with AABB collision. I am making a top down rougelike in SFML and my collision algorithm does't quite work properly. HERE IS A GIF OF THE PROBLEM. It mostly works, except for when ...
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0answers
52 views

Weird Collisions in ODE

I'm trying to get a basic OBB/OBB Collision System working. For this I use ODE. My problem is: Whenever I use the dSpaceCollide and pass in my Space and my Callback, my Callback shows me, that a ...
2
votes
1answer
61 views

Cannot connecting texture to heightmap using mapped uniform location

In my shader program, I have my attributes and uniforms added to a map for each. What I have displayed is a heightmap, but cant seem to connect the graphic texture to display. mUniformList ...
1
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0answers
36 views

Swept AABB vs AABB Calculation Error

I'm having issues running simple AABB vs AABB collision detection. I'm able to successfully detect collisions without checking with velocity. But for some reason my code keeps prematurely firing ...
0
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1answer
77 views

Cocos2d background sound not playing a second time C++

I'm using cocos2d-x on windows10 UWP project. I use the SimpleAudioEngine to load the music: CocosDenshion::SimpleAudioEngine::getInstance()->playBackgroundMusic("level_music1.wav",true); On the ...
0
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1answer
66 views

Bullet: No Bouncing off the walls

I'm using Bullet Physics for Collision Detection in a first person game. The collision basically work fine, I cannot walk through objects. But if I walk against the wall and release the key I get ...
1
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1answer
456 views

Why current scene in cocos2dx has no children when accessed from outside scene class?

I want to access a sprite in a scene, but I cannot get the running scene from outside the scene class. The scene is created using: Scene* MyScene::createScene() { auto scene = Scene::create(); ...
1
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1answer
285 views

Trying to implement Camera

I'm trying to implement a Camera class in order to walk and look on the world as follow: #ifndef _CAMERA_H_ #define _CAMERA_H_ #include <glm\glm.hpp> class Camera { public: Camera(); ...
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0answers
15 views

Syncing entities. Best way? [closed]

W're a team from a IT school, building a multiplayer game and w're asking ourself about syncing the entities over the network. For now, we have found two ways to do : The server ask each connected ...
0
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0answers
28 views

How do I save/load the state of my console snake game [closed]

I'm making a snake console game but I want to be able to save the state of the game (where the snake is, where the mice are, where the power-ups are, and where the mongoose is). I've looked at quite a ...
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0answers
26 views

Adding Function in C++ [closed]

i have been trying to make a simple Game that a hero fires some bullets toword obejects so Gusy How Can i Make a Funcion that Fires some bullets Towords Object and The Object Disappears in C++
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1answer
63 views

How to Load and Apply a Cube Map with DDS Texture Loader?

So I have been spending a lot of time recently implementing a working skybox/skysphere, and have almost completed it. The last thing that I need to do is to load my given texture, a skybox texture ...
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0answers
28 views

Defining camera/view space

Im working on expanding my camera class, but having trouble defining camera/view space in the manner of this diagram: What Im trying to achieve is to define the camera as a true object much like a ...
2
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4answers
520 views

Why is my A* Pathfinding incredibly slow?

I'm trying to use A* to make my enemies move about, but it takes up to 20 seconds to get a path to walk. My grid is only 64*64. This is my code: #include "AStar.h" #include "Node.h" #include ...
57
votes
10answers
15k views

Is UDP still better than TCP for data-heavy realtime games?

I know that UDP is usually recommended for real-time multiplayer games with high data usage. Most articles are serval years old, and since ~80% of all data transmitted on the internet is TCP, a lot ...
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2answers
496 views

Should I draw directly on a CCLayer or a CCSprite?

Now I am a little confused in my cocos2d-x cpp project. I want to draw lines with user's finger touch. Following the screenshot of a CCScene: In the screen, there are two squares. I want show an ...
0
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2answers
369 views

Moving one object from one point to another with acceleration

How would someone implement moving an object from one point in 2D space to another using these formulae to update objects: m_position.setX/Y( m_position.X/Y() + m_velocity.X/Y() * dt + 0.5 * m_acc * ...
1
vote
1answer
509 views

Bullet 3D Physics Objects Not Rotating?

So I've got Bullet 3D controlling the motion of objects rendered with DirectX. In the clipping below I've got 2 identical rectangles & 5 balls. The lowest rectangle has a mass of 0 and doesn't ...
3
votes
0answers
13 views

RWTexture3D in Compute Shader on Intel HD 4000

I'm having some weird issues running a Compute Shader with DirectX 11 on an Intel HD 4000 GPU. The goal is to write different shapes into a DXGI_FORMAT_R32_FLOAT 3D Texture with a size of ...
1
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1answer
21 views

Convert Triangle/OBB Test to OBB/OBB Test

I'm using the collision library OZCollide (http://www.tsarevitch.org/ozcollide/) and I want to do OBB vs. OBB collision tests. The problem is, that this function doesn't seem to exist (see my other ...
4
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1answer
52 views

How to buffer an image in winbgim?

So ive always had problems with buffers and never used them before. I read up on the topic online but since winbgim is so old i couldnt find any definite answers to the topic. So im gonna ask them ...
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2answers
94 views

How can I represent a tile-based map and related properties on disk?

I'm trying to load a tile-based map in my game. I've been watching SDL tutorials for a while now but they never covered how to represent the map in a file? How can I represent a tile map on-disk in a ...
0
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1answer
65 views

Frustum culling takes ages c++

I have two ways of doing frustum culling taken from different web sources. First one takes 200ms to check 10k AABBs, second around 50ms for the same box count. I read some forum answers, people say ...
1
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1answer
77 views

OpenGL App not setting cursor position appropriately

I have written a small application using OpenGL, and have implemented some rudimentary camera controls. Unfortunately, I cannot get the application to set my cursor position correctly. The cursor is ...
0
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1answer
52 views

Is window creation decoupled from game engine?

I'm new to game development, and I was wondering about a architecture question. The window creation code in C++ is given by doing the following: Fill out a WNDCLASS struct Register the window class ...
0
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1answer
31 views

Why when releasing a DirectX Texture it fail

I have an instance where a class creates a DX9 texture via UINT usage = D3DUSAGE_RENDERTARGET; HRESULT hr = D3DXCreateTexture (m_D3DDevice, 200, ...
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0answers
8 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 . ...
3
votes
1answer
178 views

C++ A Star Algorithm [path takes wrong route] using <deque> & unique_ptr

I am having issues, trying to get my A Star algorithm working, the main problem is with my process of the algorithm, I am using something known as the TL engine which has some of its own datatypes and ...
0
votes
1answer
198 views

Constant buffer not updating

I'm trying to rotate models independently of each other however I cannot for the life of my figure out how. I have gotten to the stage of writing this: std::vector<int>::size_type st = ...
0
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0answers
22 views

OBB/OBB Test in OZCollide

I want to know if anybody, who tried OZCollide (http://www.tsarevitch.org/ozcollide/), knows whether OBB vs. OBB Tests are possible or not. I know there is a AABB vs. OBB function but I can't find one ...
1
vote
1answer
115 views

Passing an SDL KeyboardState(Uint8*) to Lua

I'm working on my first big project and I've decided to integrate Lua with my C++ framework. Everything's worked out so far, but the only way I've managed to pass the SDL_GetKeyboardState(NULL) array ...
1
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1answer
52 views

How do I correctly shift arrays on a Tetris line clear?

I'm writing a Tetris clone in C++ and I am at the last stage, I need to delete a row when it is full. Once a piece falls it is stored in a boolean array grid[20][10]. For example I check which row is ...
0
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0answers
22 views

OBB Collision Intersection Problem

I'm trying to create OBB's around objects and then collide them using DirectX 11 and C++. It all works fine until I rotate one (or more) of the boxes and then the collision detection returns true too ...
0
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1answer
27 views

Drawn frustum does not match with glm::perspective

I am working on a personal project and I got a 3d viewport with moving camera working nicely. Now I am working on being able to freeze the time and switch to a debug camera and move in the game ...
1
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1answer
31 views

How do I toggle color writes in SlimDX 11/Direct3D 11 with FeatureLevel 10?

I'm having trouble setting the RenderTargetWriteMask field of a RenderTargetDescription struct. I simply want to toggle color writes but every time I try to enable the the color writes are changed ...
5
votes
1answer
422 views

OpenGL Fast-Object Instancing Error

I have some code that loops through a set of objects and renders instances of those objects. The list of objects that needs to be rendered is stored as a std::map>, where an object of class ...
4
votes
2answers
239 views

Rotating a 3rd person camera toward a target

I have a 3rd person camera that doesn't look directly at the player but somewhere in front of him. When the user enter shooting mode, I want the camera to turn around the player to face the target. ...
1
vote
1answer
78 views

Handling animations in a Platformer

I'm developing a 2D platformer game using the Cocos2d-x Engine, i can load correctly the animations according in which action the player is(running, jumping, standing, etc). Now i'm trying to add the ...
0
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1answer
50 views

Create a crosshair openGL

How do I draw a white crosshair in the middle of screen in openGL, it's all well and good knowing how to render objects in 3d space, but I have literally no idea on how to draw something that sticks ...