[opengl] Forum Topics

Hello, I have simple problem for professionalist (that i think ) but i asked all available AI about it and none was able to help and solve problem. so nothing is able to help me in this. I have simple app that show 3 colored axes and camera that move …

How to be the next Pubg maker! Learn Game Development now We all know how fun it is to play games in our leisure time and we enjoy it to a certain point but just imagine this; A specific type of game that you always wanted to play but you …

I'm trying to use CLion (thus CMake) to create OpenGL applications using C++ on MacOS Monterey using a 2021 (so M1 based) Macbook. Glew2 and GLFW3 are installed correctly using Homebrew, XCode and the commandline tools are installed as well. Creating and compiling/running through XCode works fine, but using the …

Hi all, I've started to dive into OpenGL w/C++ to expand my library knowledge but I had a few questions. I've been following a tutorial online that basically walks step by step through the compiler linking, functions, and basics of an OpenGL program. I really would love to create some …

Hi, I am a begginer and I can't find an useful full and free tutorial for using Open GL in game development... do anyone know a place to learn it? Also, an full C++ free tutorial would help me a lot!

i am trying to get gstreamer to capture frames and have them put into a picture box on a glade form , this is my Code snippet so far , can anyone give me come guidance GstCaps *caps = gst_sample_get_caps(sample); // Get a string containg the pixel format, width and …

I worked about 2 weeks with OpenTK and I like to know how to texture triangles. I like to give my program, the flexibility to make shapes like triangles, cubes, spheres and to give them different textures (or shaders). I like to give my window a icon, but it says …

I am now learning OpenTK. I have some trouble learning how buffers, vectors and how to make more than 2 3d shapes. and if I try to set the texture or shaders, it will change all the shapes to the same textures and shaders. I have read a lot of …

Pls i need help. im new to OpenGL and have been given an assignment to loop a background automaticall. Pls can someone help me?

Hey everybody, I was just wondering, how do you create Lens Distortion in OpenGL? As in, the rendered image looks bloated or sucked in when you implement it. I would typically want it in a simple format that works nicely and doesn't eat up too much CPU. As an extra, …

I'm coding a program to learn OpenGL in C++ (based off of The Benny Boxes tutorials) and I've run into a snag where I don't get any errors, but my shaders refuse to apply to the triangle that I'm rendering. I'm going to give you all the relevant code but …

I've been working with my own system using CPU-managed hitdefs (rectangles for mouse-events) since I didn't want to redraw everything for the gl feedback buffer... (basically I can do all the hitdef position management once during the frame loop) now that modern gl has come into play, I would like …

Since OpenGL uses the strange system of 1s and 0s to represent location on the screen, I'm trying to figure out how to switch it to standard x, y coordinates like those that are used on a graph. And so far, my searches on the rest of the internet have …

now I know your first thought is going to be rotation matrices, but take a moment to think about how they're applied... I'm wondering if there isn't something more efficient, or if there really needs to be that many operations per bone and vertex. I'm looking for the smallest data …

So I'm maing a 3D game editor in Java using LWJGL (Lightweight Java Game Library), I have the editor set up so that the user can create new levels, load up saved levels, save and quick save current levels, import textured models etc.. the basics. I am now trying to …

I am trying to run the code in openGL in Visual Studio 2013 after installation. It shows error as "Cannot open source file <GL/glew.h> and <GL/glut.h> ". Also it shows "Identifier glutInit is undefined". Can you please resolve this issue ?? #include <GL/glew.h> #include <GL/glut.h> #pragma comment(lib, "glew32.lib") int main(int …

on my university I got an assignment to build a program on OpenGl that read from a given txt file a coordinates of some lines and draw them to the screen. i thank everyone that might help me, I know a little bit programming on C but I'm a little …

Hi I am a beginner in game programming and would like to make a rocketmania clone using opengl, the display and interaction part is done. I also have a classes named gameboard and tiles with their properties. but I am having problems on game logic, where the fuel flows into …

void PatratTexturat(PATRAT patrat, int numar) { switch(numar) { case 1: if(numar==1) glBindTexture(GL_TEXTURE_2D, id_textura[2]); else glBindTexture(GL_TEXTURE_2D,id_textura[3]); break; case 2: if(numar==2) glBindTexture(GL_TEXTURE_2D, id_textura[4]); else glBindTexture(GL_TEXTURE_2D, id_textura[5]); break; case 3: if(numar==3) glBindTexture(GL_TEXTURE_2D, id_textura[6]); else glBindTexture(GL_TEXTURE_2D, id_textura[7]); case 4: if(numar==4) { glBindTexture(GL_TEXTURE_2D, id_textura[8]); } else { glBindTexture(GL_TEXTURE_2D, id_textura[9]); } break; case 5: glBindTexture(GL_TEXTURE_2D,id_textura[10]); break; …

void PatratTexturat(PATRAT patrat, int numar) { switch(numar) { case 1: if(numar==1) glBindTexture(GL_TEXTURE_2D, id_textura[2]); else glBindTexture(GL_TEXTURE_2D,id_textura[3]); break; case 2: if(numar==2) glBindTexture(GL_TEXTURE_2D, id_textura[4]); else glBindTexture(GL_TEXTURE_2D, id_textura[5]); break; case 3: if(numar==3) glBindTexture(GL_TEXTURE_2D, id_textura[6]); else glBindTexture(GL_TEXTURE_2D, id_textura[7]); case 4: if(numar==4) { glBindTexture(GL_TEXTURE_2D, id_textura[8]); } else { glBindTexture(GL_TEXTURE_2D, id_textura[9]); } break; case 5: glBindTexture(GL_TEXTURE_2D,id_textura[10]); break; …

Hi there, i have a ball: [icode] void ball (void) { glColor3f(0.0, 1.0, 0.0); //set ball colour glTranslatef(0.0,0.0,1); //moving it toward the screen a bit on creation glutSolidSphere (0.6, 7, 7); //create ball. } [/icode] I am trying to get the ball to move in a direction when i press …

Hello everyone, I am trying to write an object loader in c++. Currently, I have a file that is made up of many sub objects and I am having a little difficulty figuring out how to process the data. First of all, here is an example of part of the …

The module pyglet leans on OpenGL for graphics and is used in the scientific community together with Python. This short code snippet shows you how to use it to display an animated GIF file. The download is free, so give it a try. You don't have to download OpenGL to …

Linux Mint 17 I have recently download the SFML library but I don't know where to put the files. There is a lib directory and an include directory. The lib directory appears to have a lot of sym links in it. garrett@mint-desktop ~/Desktop/SFML-2.3.2/lib $ ls -l total 904 lrwxrwxrwx 1 …

Hello, can anyone help me in searching code for hand gesture recognition system using opencv in c++. Thanks

Hi. I am familiar with the following C graphics libraries: Cairo, SDL, SDL2, and OpenGL. The problem I have found with these is that they either require shared libraries (Cairo/SDL/SDL2) or are difficult to make cross-platform (OpenGL). I am wondering if there are any graphics libraries for C that do …

I am in the process of making a small game-engine for educational purposes, and I have come accross a very fustrating error. When debugging the program with the c++ gdb debugger an error occurs on the `glGenVertexArrays(0, &m_vertexArrayObject);` - line 21 in the implementation of the `addVertices` method, line in …

Hi everyone, I need some help with the lookat matrix... This is my code [CODE] Matrix Matrix::CreateLookAt(Vector3 eye, Vector3 target, Vector3 up) { Vector3 forward = target - eye; forward.normalize(); Vector3 side = Vector3::cross(forward, up); side.normalize(); up = Vector3::cross(side, forward); Matrix m; // Defaults to identity matrix m.m11 = side.x; …

I know coding in c++ pretty much ..but I want to learn graphics .. I am using DEV-C++ 5.11 .. Can anyone tell me online link to graphics site?

Hello Everyone! I'm using C++ to write a small 2D app with SDL and OpenGL. I'm trying as much as possible to keep my code cross-platform. However, I've hit a bump. I can't find a good, easy way to display text on the screen. I am able to do it, …

I am working on the qt opengl application for drawing a tree and getting the following error. Any idea would be appreciated. :-1: error: No rule to make target 'debugwidgetbase.ui', needed by 'ui_debugwidgetbase.h'. Stop.

My dears , I have a opengl c++ program that works fine in the vs2013 and draws tree. Now I want to use that program in the qt gui open gl project. I know how to make gui program and add classes and headers. But I do not know how …

recently ive seen video of a man which showed on how A* works, that is some algorhythm for pathfinding in 2d in games, to show this he made a game in c# (visual studio only), where he could explore the "maze" board in 3d and could see the red square …

Ive made a java program to do automated tasks for a game. It takes screen shots with java.robot every 250 milliseconds. The program is working great, but it will always crash at around the 30min mark Im running this program on my mac, and this is the crash report that …

Ive made a java program to do automated tasks for a game. It takes screen shots with java.robot every 250 milliseconds. The program is working great, but it will always crash at around the 30min mark Im running this program on my mac, and this is the crash report that …

Hi, I have a C++ code running OpenGL GUI (CEGUI), I need to wrap this window inside a C# Application. I guess I will compile the C++ as a dll, and add entry points for the C# app. What is the preffered way to do this? I thought of these …

**BREAKOUT GAME IN OPENGL** code is in C. Use the 's' and 'd' to move the paddle. Bounce the ball off the paddle to keep it from falling off the bottom of the screen. Break all the bricks to win. So far the program is running. but the right brick …

import java.awt.Frame; import java.awt.event.KeyEvent; import java.awt.event.KeyListener; import java.awt.event.WindowAdapter; import java.awt.event.WindowEvent; import javax.media.opengl.*; import javax.media.opengl.awt.GLCanvas; import javax.media.opengl.glu.*; import com.sun.opengl.util.Animator; import com.sun.opengl.util.FPSAnimator; public class Object3D implements GLEventListener, KeyListener { GLProfile glp; GLCapabilities caps; GLCanvas canvas; GLU glu; float rotX = 0.0f; // Rotate screen on x axis float rotY = 0.0f; // …

Does my old Intel 946GZ Express Chipset Family supports OpenGL 2.0...? Plz reply soon i want to sale it to a minecraft lover...!

I wanted to start my own game. I have experience developing in C, C++ and Java. I also have tried out Python and currently I am learning OpenGL. I would like to know if there are preferrable programming languages that are suited best when it comes to game programming. Thanks …

If I (have to) use C/C++, I'm mostly working on time-critical or real-time applications. Examples are OpenGL texture Streaming (Example: Streaming Satalite Data on planet surface in realtime: https://www.youtube.com/watch?v=ws2ra5MvDi4) or real-time PSM audio maonpulation (Example: Automatic tuning a guitar to a C64= SID tremolo: http://www.yousry.de/audio-example-real-time-tune-detection-tuning-auto-tuning/). During development I'm using "**-O0 …

Alright, so im making falling numbers and i need to display points while its running. in the code its keeping track, but i have no way of displaying it. in regular C++ i would just do cout<<score; but in openGL it doesn't work that way as most of you know. …

//Program to implement Basic Incremental Algorithm //Working on ubuntu #include <GL/glut.h> #include<stdlib.h> #include <stdio.h> GLfloat x0,x1,y0,y1; //Input variables taken as global int flag=1; //variable for display1() void init(void) { glClearColor(0.0,0.0,0.0,0.0); glMatrixMode(GL_PROJECTION); glLoadIdentity(); gluOrtho2D(0.0,500.0,0.0,500.0); } void PutPixel(GLfloat x,GLfloat y) { glBegin(GL_POINTS); glVertex2f(x,y); //To display pixels on-screen glEnd(); glFlush(); } void display1(void) …

Hello again. :) It's possible to avoid frustum splitting in cascaded shadow mapping? It's very hard to build! :(

Ok so first off, I've recently returned to C++, and I'm very new to both OpenGL, and Code::Blocks IDE (used to use Bloodshed Dev before) .. so please don't flame me if there's a basic solution to this I'm trying to read a ".asc" file which has the vertices of …

i would like to develop opengl apps on windows using c++ how do i get the proper header files and linker libaries im using mingw compiler at the moment on windows 7 x64.

Hello everyone, I'm a first year (just finished) software engineer student and i am looking to start making my first game, nothing that complex ofcourse it is meant as a learning experience, however i am incapable of finding any proper tutorials on the use of say OpenGL or DirectX. All …

Hey! I'm using OpenGl GLUT on xcode 5.1.1 on mac osx 10.8.5 and I've can't figure out how to load bmp,jpg or png images as textures to my application. I've tried installing FreeImage and SOIL unsuccessfully. I'm a total newbie and some help would really be appreciated.

ok, so I'm kindof a complete noob when it comes to stuff dealing with windows specifically... I know it's possible to have an interactive OpenGL desktop BG in XP as [this article](http://engineering.imvu.com/2010/11/24/how-to-write-an-interactive-60-hz-desktop-application/) proves it works in C++. but I want to get it working in python and have no idea …

Hello, So I was testing my matrix class and the results look questionable and the inverted matrix isn't returning the vertex to it's original value (a seperate issue). Given a perspective projection at 45 degrees with a near of 1 and a far of 1000, the camera at the orgin …