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OpenGL

Jul 20, 2011 at 8:49am
the swift (14)
I recently have been trying to figure out how to get OpenGL working on Dev-C++. I downloaded the glut3.7.6 dev pack and got that working on Dev-C++ (I think).

So I was looking for tutorials on OpenGL and found this one: http://www.youtube.com/watch?v=TH_hA_Sru6Q

I tried to follow the glut installation things but couldn't figure out where to put them in Dev... That's why I installed the glut3.7.6 dev pack...

I tried compiling this source code

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// A Simple OpenGL Project
// Author: Michael Hall
//
// This C++ code and project are provided "as is" without warranty of any kind.
//
// Copyright 2010 XoaX - For personal use only, not for distribution
#include <gl/glut.h>

void Draw()
{
	glClear(GL_COLOR_BUFFER_BIT);
	glColor3f(1.0, 1.0, 1.0);
	glBegin(GL_LINES);
		glVertex3f(0.25, 0.25, 0.0);
		glVertex3f(0.75, 0.75, 0.0);
	glEnd();
	glFlush();
}

void Initialize()
{
	glClearColor(0.0, 0.0, 0.0, 0.0);
	glMatrixMode(GL_PROJECTION);
	glLoadIdentity();
	glOrtho(0.0, 1.0, 0.0, 1.0, -1.0, 1.0);
}

int main(int iArgc, char** cppArgv)
{
	glutInit(&iArgc, cppArgv);
	glutInitDisplayMode(GLUT_SINGLE | GLUT_RGB);
	glutInitWindowSize(250, 250);
	glutInitWindowPosition(200, 200);
	glutCreateWindow("XoaX.net");
	Initialize();
	glutDisplayFunc(Draw);
	glutMainLoop();
	return 0;
}
Edit & run on cpp.sh


Except the compiler won't run due to the whole bunch of linker errors.

Can anyone point me to source code I can get to see how OpenGl works... Or point me to the right way on how to get OpenGL working on Dev-C++ if I did it wrong...

I'm a beginner to these things...... You'll probably have to walk me through step by step
Last edited on Jul 20, 2011 at 8:51am
Jul 20, 2011 at 9:17am
Catfish (666)
If you created a Project then go to Project Options, Parameters and at the Linker area be sure the GLut library is added.

Edit: also when you start a new project in Dev-C++ you'll find an OpenGL Project template at the Multimedia section. It does not use GLut.
Last edited on Jul 20, 2011 at 9:19am
Jul 20, 2011 at 9:41am
the swift (14)
I have no idea what the GLut library is... Like I said before, really new to these things...
Jul 20, 2011 at 10:21am
Catfish (666)
GLut is there to simplify OpenGL for you. Meaning that you don't necessarily have to use it.

Anyway, all .lib files are stored in your C:\Dev-Cpp\lib\ folder. If you installed the GLut devpack correctly you should have a file libglut32.a in there?

Edit:
Also a "glut" Project template should appear in the Multimedia section when you start a new Project.
Last edited on Jul 20, 2011 at 10:23am
Jul 20, 2011 at 12:55pm
the swift (14)
YES FINALLY!!!

Thank you so much, didn't see the Multimedia section before, but I've got it now. THANKS SO MUCH!!!
Jul 20, 2011 at 1:24pm
Catfish (666)
Glad you got it to work; though I wouldn't use GLut myself.

Anyway check this out: http://nehe.gamedev.net/
The OpenGL tutorials are on the left.
OpenGL game downloads are on the right (they often come with source code).
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