Visit Our UNIX and Linux User Community


i am new to opengl , how to work opengl in ubuntu


 
Thread Tools Search this Thread
Operating Systems Linux Ubuntu i am new to opengl , how to work opengl in ubuntu
# 1  
Old 08-27-2009
Error i am new to opengl , how to work opengl in ubuntu

Hi,

i am new to opengl, how to work openGL in ubuntu ,,

i am not getting which packages as to be install and how to install those packages.

and how to work with small programs..


Please guide me ,,, it will appriceated ...
# 2  
Old 08-28-2009
Ubuntu is really the wrong platform for programming... There's such a heavy snow of *-dev packages needed to do anything at all. You will of course need to install gcc and perhaps g++. needed libraries might begin with libgl1-mesa-dev, glutg3-dev, libglui-dev, libglut3-dev... Not having an ubuntu machine I can't say how many more would be necessary to install to stop it complaining about missing headers. Also, using SDL would be a lot easier than using OpenGL raw. It sets it up for you so you can use OpenGL raw, but in a relatively simple and platform-independent way. There are many tutorials for SDL opengl available on the internet.
# 3  
Old 08-31-2009
Hi Sir,

I worked with c programs in ubuntu for openGL,,, now im trying to execute the c++ programs for openGL ,,,, while compiling its showing error message as

root@lxdevenv:/usr/include/GL# g++ -c -I$QTDIR/include ravvv.cpp
ravvv.cpp:1:18: error: kapp.h: No such file or directory
ravvv.cpp:2:24: error: qwidget.h: No such file or directory
ravvv.cpp:3:75: error: qpainter.h: No such file or directory
ravvv.cpp:4:23: error: qimage.h: No such file or directory
ravvv.cpp:7: error: expected class-name before ‘{’ token
ravvv.cpp:8: error: expected `}' at end of input
ravvv.cpp:8: error: expected unqualified-id at end of input
root@lxdevenv:/usr/include/GL#


and my code is

#include <kapp.h>
#include <qwidget.h>
#include <qpainter.h> // The QPainter class draws graphics on widgets.
#include <qimage.h>

class MyWindow : public QWidget
{
public:
// Constructor for the window, just call the QWidget constructor
MyWindow() : QWidget() { }
protected:
void paintEvent(QPaintEvent *);
};

// This function is called when the window area must be updated.
// Load and view the image
void MyWindow:SmilieaintEvent(QPaintEvent *ev)
{
// Load the image that we want to show
QImage image;
if (image.load("test.jpg", 0)) // If the image was loaded,
{ // Show the image.
// Draw graphics in this window
QPainter paint(this);
// Draw the image we loaded on the window
paint.drawImage(0, 0, image, 0, 0,
image.width(), image.height());
}
}


int main(int argc, char **argv)
{
KApplication app(argc, argv)
// Create the window
MyWindow window;
app.setMainWidget(&window);
window.setCaption("ImageIO Example");
window.setGeometry(100,100,300,300);
window.show();
return app.exec();
}


guide me ..it will appreciated ....
# 4  
Old 09-01-2009
It looks like you need qt-dev, or something like qt-dev.

This code will only work with qt by the way, which is wholly unnecessary for OpenGL. It's probably a bad idea in general to tie functionality that has nothing to do with a GUI into a GUI, as it will make it very hard to make the code work anywhere else. You need X and mesa and SDL; write for that and your GL code should work anywhere.

here's a better introduction I think. Took me a while to find it. SDL is nearly everywhere these days, unlike qt.

Last edited by Corona688; 09-01-2009 at 05:20 PM..
# 5  
Old 09-02-2009
Bug Installation of SDL

Hi Sir,

I installed SDL and executed the small program ,,, its executed without any error ,,

after that i downloaded SDLgears-1.0.2.tar.gz

and i did ./configured it ..
done make
after that i did ./SDLgears
I got the output ,,,

Thanking You Sir ,,,

---------- Post updated at 12:36 AM ---------- Previous update was at 12:32 AM ----------

Hi Sir,

As im new to OpenGL im not getting which are the different applications for each Features in openGL ..

if possible give me the example for different applications ,,


Thanking You,
# 6  
Old 09-02-2009
That's too broad a question for me to have a useful answer to, could you be more specific?
# 7  
Old 09-03-2009
Error what are the different applications of OpenGL

Hi Sir,

What i meant to say is what are the different applications where openGL is Used..

I need programming(c language) examples for each applications ,,,,

Previous Thread | Next Thread
Test Your Knowledge in Computers #120
Difficulty: Easy
The UNIX certification mark is commercially licensed by AT&T.
True or False?

9 More Discussions You Might Find Interesting

1. UNIX Desktop Questions & Answers

Difference between opengl es and directfb

i dont know in which forum to ask this question ..... :( . pardon me if it is not this forum i wanted to know difference between openGL ES and directfb as far i know directfb is alternative to x11 in linux for embedded devices. something like ... application | ... (1 Reply)
Discussion started by: alexzander18
1 Replies

2. Solaris

Solaris 8 and openGL

Hi everybody, Sorry to bother you one more time, but I have a problem with my Solaris 8 installation. Actually, Solaris works well, I can start X and access my desktop (CDE), but I'm having troubles using Cadds (a CAO software). Cadds works, but the 3D visualization is very slow compare to... (4 Replies)
Discussion started by: firstpost
4 Replies

3. Programming

How to install openGL packages?

Hi, Any one help me regarding how to install openGL packages to work in linux. And i installed some of the packages(gl,glu), but i don't know whether they are installed are not .. Which command is should use to check whether openGL is installed are not .. I am Thankful for any kind of... (3 Replies)
Discussion started by: Ravikishore
3 Replies

4. Programming

Draw a 3D cylinder using openGL.

Hi, please give me, how to code to draw 3D cylinder in openGL, that should be rotated in x-direction. waiting for your reply .. (2 Replies)
Discussion started by: Ravikishore
2 Replies

5. Programming

How to Decode an image using openGL

Hi, How to decode an image using openGL library libjpeg .. which are the steps needed to do this using C language.. actually my work is to decode the image, store it on the buffer, and place it on cube surface.. please guide me,,any answer will appreciated .. (8 Replies)
Discussion started by: Ravikishore
8 Replies

6. Ubuntu

How to draw cylinder using openGL

Hi Sir, i am new to openGL, i want to know how to draw cylinder using openGL code in C or C++.. And i have to insert bitmap images on cylinder.. How to do this .. please guide me ... Thanking You in advance .. (0 Replies)
Discussion started by: Ravikishore
0 Replies

7. Programming

How to compile openGL code which is in C++ in ubuntu

Hi, I am trying to compile openGL code which is written in c++ ..but i am getting error msgs like this root@lxdevenv:~/Desktop# g++ diss.cpp -o diss -I/usr/X11R6/include/ -L/usr/X11R6/lib -lX11 -lXi -lXmu -lglut -lGL -lGLU diss.cpp:1:23: error: windows.h: No such file or directory... (2 Replies)
Discussion started by: Ravikishore
2 Replies

8. AIX

Need to install opengl for GXT4500.

Hi, I try to install opengl bat it give a error that i need the opengl base level fileset 5.3.0.0 I use AIX 5.3 and my oslevel is now 5300-03. Where can i find the opengl files i need (5.3.0.0)? Thanks Peter. (1 Reply)
Discussion started by: xeonbb
1 Replies

9. Linux

Help with OpenGL in Fedora Core 4.

I'm pretty much new to this Linux stuff, I installed FC4 the other night to try it out. I'm having a slight problem when launching Quake 3, it's giving me the error GLimp_Init() - could not load OpenGL subsystem I've updated my video drivers to the latest version and went through fglrxconfig,... (3 Replies)
Discussion started by: Filth Pig
3 Replies

Featured Tech Videos