434 Topics
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 | I need to convert a true type font into a list of three dimensional vertices using openGL. I looked at the NeHe tutorial, but it only creates a display list from the font and as far as I can tell it is not possible for me to extract the vertices … |
| | I need to know how to extract the data in a display list in opengl. I have a font and use it to create a display list to draw, but then I want to get the actual vertexes of it so I can use them for collision checking. How can … |
| | I'm trying to make my rectangles appear on screen, but it appears blank when I run the program. [CODE]#include <GL/glut.h> #include <stdlib.h> #include <math.h> using namespace std; struct GLPoint { GLint x; GLint y; }; void init(void) { glClearColor (1.0, 1.0, 1.0, 0.0); glShadeModel (GL_SMOOTH); } void display(void) { int … |
 | Hello there guys! :) I've been given a sample code for my upcoming assignment in Computer Graphics and, according to the guide available in the course's site, I've set up Visual Studio 2008. What we've been given is a solution with some sample code which we must use as a … |
 | I don't really know what to ask here because the only indication I have that there is something wrong in my program is that nothing is showing on the screen. I'm loading a .obj model (it's just a cube, and i've checked all the verts/faces and they're all proper values) … |
| | I'm currently trying to learn OpenGL with the use of GLFW and the Addison Wesley book 'OpenGL Programming guide 7th edition'. Here is one of the first sample programs they present, it is meant to draw a white box. In this example I mixed it with a simple glfw window … |
| | Hi, I have drawn a human face using simple shapes such as big circle for the face, little circles for the eyes, lines for eyebrows and triangle for the nose. I have been asked to create a template for various expressions of the face (fear, happiness, disgust, etc). Once I'm … |
| | Hi, Does anyone know how to animate object so it follows a previously drawn spline? I tried by translating all object vertices by Spline_point[i]-Spline_point[i-1] by frames but this doesn't work. Does anyone have a better idea? |
| | I drew a circle to represent a human face. I am drawing an arc to represent the mouth but I am having troubling positioning it in the right place. I have checked the value of x and y in the computation of the arc but can't seem to figure out … |
| | What does it mean if my opengl objects are opaque from one side and translucent from another? |
| | [CODE]//#include <stdafx.h> #include <iostream> //line_poly_file.cpp #include <fstream> #include <windows.h> #include <glut.h> GLsizei wh = 250; GLsizei ww = 250; void DisplayLines ( void ) ; void MyInit ( ) ; void DisplayLines ( void ) { GLint xj, yj, j; glClear ( GL_COLOR_BUFFER_BIT ) ; fstream inStream; //inStream.open("R.txt", ios ::in); … |
| | Hi everybody ^^ I'm quite a newbie in loading image file, so I've try to improve myself by loading the TGA image structure (You can found it at [url]http://en.wikipedia.org/wiki/Truevision_TGA[/url], I'm quite believe in the information there) My problem is after loading and draw it onto the screen using OpenGL ES, … |
| | I am still having major trouble with my openGL model program. The big issue is that I cannot figure out how to debug it since I am saving the important data to the graphics chip using vertex buffer objects (VBOs) so at least as far as I can tell, I … |
| | I am working on an assignment for school and i seem to be having some issues. I am using OpenGl with free glut, and attempting to animate a pendulum. I can draw out the pendulum, but cannot determine how to make it swing. I have to make it swing from … |
| | How do I do 2D opengl? I need to be able to put stuff up on the screen so that it is not rendered in three dimensions, and I need the 3d stuff to still be 3d behind it. |
| | Hi, I'm learning OpenGL. I assumed this would be the best section to post this thread, because many games are made in OpenGL. There's no place to post this in my other forum, so yeah, I came here. Anyways, here's the problem. I first off do not have glut.h I …  |
 | Dear Friends I am wirting an application for drawing a rectangle on the screen using opengl and mfc. So I implemented the OnPaint function, OnDraw function is also giving the same problem. It's drawing fine. I want to implement pan, zoom, and rotate functionalities. Now everytime the mouse moves I … |
| | Really quick question (I hope) before I buy Maya I want to know if it has the option of exporting coordinates for triangle vertexes rather than images. If it doesn't, is there software that would allow for modeling while exporting vertexes for 3d triangles?  |
| | I am still unable to get OpenGL Vertex Buffer Objects to work. I will just show you the code I have written so far: 3dglgui.h (I think this should be fine): [CODE]#ifndef CLASS_NAME #define CLASS_NAME "OpenGL Windows Class"//This can be overwritten to specify a unique class name #endif //Header Guards … |
| | hello. Can you recomend me any good OpenGL models type? I would like a type wich would have good editors for that model type and it would be possible to use "skeletal animation" with it.  |
 | Hi All! I'm try to make a game in C++ with OpenGl. So far i've programmed the sprite and the platform. the next thing is to create a AI bot who will try to kill you in the game. but I've got the most bisarr problem with that: The AIBot … |
| | Hi i am having problems with my assignment. i am supposed to make a 2d top down view game and i started on doing the main menu. i tried at making a main menu and it worked. after that i changed the codes and put them into classes and this …  |
| | Hello again. I need help on OpenGL in console mode (with GLUT). How can I use full screen with GLUT? Please answer me. (don't miss Daniela Ruah (NCIS: Los Angeles) photos in Esquire of September... She's hot, hot, hot, hot, hot!!! :* ) |
 | I'm not sure where this post fits, but after staggering here and there I Thought I would throw it here! I find difficult to make coordinates by hand (Not very good at x-y-z though I know the XY coordinate). Is there a tool that will allow you to draw let … |
 | Ok, first of all, I'm not sure if this belongs to C section. Since WinAPI is written in C, I'll post here. I'm using OpenGL with Win32 windows (not sure how to call that). I can't switch to fullscreen mode after creating the window. I'm using Windows 7 (64-bits) and … |
| | So I got curious with OpenGL and I ended up having a copy of the "redbook", as people call it. Initially when I tried relying only on online sources like tutorials and whatnot they were all written using WinMain which was a drag so that sort of put me away …  |
| | I try to make the triangle move smoothly but instead the triangle is gone when I enter move button. WHY? can someone please check and tell me what is the problem? it can move without dt( in my code for elapse time).[CODE] #include <windows.h> #include <GL/gl.h> #include <GL/glut.h> #include <time.h> … |
| | When I try to call wglMakeCurrent, I get an access violation. My program only runs in one thread and one window, and I've got a valid device context and rendering context, I can't see what the problem is. I'm using VC++ 2010 and am running Widows 7 64-bit. [code=c++] static … |
| | I have written a code but I am getting run time error : I have introduced all the error functions , but no error comes . Debug it with gdb which says : Starting program: /home/sudhanshu/OpenGL_ES/example/cube/cube [Thread debugging using libthread_db enabled] Program exited normally. What is the problem I am … |
 | I am developing an OpenGL application (mostly 2D Ortho) compiled in gcc. As a requirement, in order to offer remote online tech support for the application, I need to be able to view and control this application remotely from time to time using something like VNC viewer. I tried using … |
| | Hi, I am writting a game engine for my fps game that uses C++ as the language and OpenGL as the renderer. I find though that the graphics are looking more like Half-Life 1 rather than Half-Life 2 (if you know what I mean). Even though both these games used … |
| | I have reinstalled my compiler successfully (finally) and got right back to work. I have created a glModel class as follows: [CODE]class glModel { private: int numv; int numn; unsigned int model; unsigned int textu; unsigned int norma; float *vars; float *norm; public: glModel():numv(0),numn(0){vex=new float[1];tex=new float[1];nex=new float[1];} glModel& Vertex(float tx, … |
| | Hello World ! I have problem regarding background music in my 3D scene demo in openGL..anybody knows a simple source code to load audio files in openGL? |
| | Hey I am a real amateur and I am trying to teach myself and I have been following the tutorials at [url]http://www.youtube.com/watch?v=VJGqalveGmM[/url] and I am just not able to get it to work, any help would be greatly appreciated. This is the error I am getting, I have been doing … |
| | Hi, I have a question and I apologize if it is too newbish. I have been for a while now trying to learn OpenGL but I cannot understand how its coordinate systems works. I know coordinate geometry as I did some math long ago as well as equations (linear, polynomial … |
| | Hi, I am writing a game in C++ and OpenGL. My whole environment is based on cubes so I guessed bounding box collisions were best. I can currently move around and my program is detecting collisions (I used this tutorial: [url]http://www.3dcodingtutorial.com/Collision-Detection/Collision-Boxes.html[/url]). Now I want to make it so that when … |
| | I decided to post this problem in a new thread. I have a simple program in OpenGL and it doesn't work. What happens is that a transparent window forms and when you hit the 'X' it says that the Release of the Device Context and Rendering Context failed. Here is … |
| | ookay people, here is the code c++; im trying to read BMP image file. [CODE]#include <iostream> #include <fstream> using namespace std; void listing (void) { unsigned char pixel; int x, pix; ofstream debug("debug.txt", ios::out); ifstream inpaint( "source.bmp",ios::binary); if(!inpaint) { cout << "File not opened\n"; exit(1); } for(x=1; x<=54; x++) { … |
| | Can somebody help me, I wish to learn OpenGL and I don't understand how to set it up. I am using a windows XP machine with Code::Blocks 8.2 and MingGW. How do I get OpenGL working? |
| | When I put crosshair (glutSolidCube()) at screen centre..it is affected by MOdelview transformation...how to hold it at screen centre this cube...(crosshair)...help me ... |
| | Hello World ! I have problem regarding displaying a text which should not be affected by model view transformation...I have to display a cross-hair at the center screen for targetting enemies...when I put cross hair in the middle of center, it gets affected by some model view trasformation...as in pC … |
| | Hello everyone! I have found a really weird result when I display a 2D texture (with GL_QUAD) on the screen at a different size to what it normally is: E.G when I display a 64x32 image(texture) on the screen at 128x64 and it contains an alpha channel the pixelated borders … |
| | Hello World ! How to load a Bitmap image or any other format in openGL ? I am so much confused where I need to begin my innings ? confused while studying lot of theories and concepts...plz can anyone tell me the steps from starting altough i have read some … |
| | So, I've bought two books, one on DirectX 10 and one on OpenGL. The first one i bought was the directX 10 book, and NONE of the code compiled because of some LPCSTR error. So stupid me thinking it was another thing that microsoft goofed on i bought a book …  |
| | I am trying to render a car using OpenGL. The car has a chassis and 4 wheels. The chassis is simply a cuboid and the wheels are cylinders. I have their positions from the Bullet physics engine as openGL matrices. If I pass these matrices to glMultMatrixf() in turn and … |
| | So I'm learning OpenGL on my own and I have to say I'm really liking it. I really have not been able to do much, you'd laugh if i told you how much i knew but are there any real techniques for drawing shapes? I'm having trouble trying to figure … |
| | Hello World ! I want to move a rectangle from going one point to another point in openGl. I am reaching the position but movement is so fast when I execute the program..it already in reached state. how to add delay so that I can see moving rectangle. |
| | I am currently writing a program that uses OpenGL and so it uses the include file: #include <GL/glut.h> Now when I try to compile and run the program I get this message in the error folder: "fatal error C1083: Cannot open include file: 'glut': No such file or directory" Lastly, … |
| | I am a humble programmer who is about to lose his remaining sanity at trying to get FTGL and/or FreeType working with Visual Studio 2010. FTGL is version 2.1.2 and FreeType is version 2.4.4. Inside of the project directory I have freetype.dll and ftgl_dynamic_MT_d.dll, and I have linked to the … |
| | Hey guys, I just started to try and use OpenGL and I wanted to run an example but I get linker errors. The code is just fine but it has linker errors says the console. Linker Errors/Console: [CODE] [Linker error] undefined reference to `glFinish@0' [Linker error] undefined reference to `wglSwapBuffers@4' … |
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