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Nokobon

Unity GLTools on Linux

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Hi,

I'm am trying to run the "First Triangle" example code from OpenGL Superbible 5th Edition on Ubuntu 10.04.
Unfortunately there is no explanation how to set up a project including GLTools on Linux and I'm not experienced using Libraries in C++ with Eclipse.

I've got the source and header files of GLTools (including Glew) from the homepage of the Superbible.

OpenGL and Glut are working properly.
I added the header-files folder of GLTools to the include directory of my C++ Compiler in Eclipse.

Now when building the project I get some errors saying there are no matching functions for some calls.

for example:
at
triangleBatch.CopyVertexData3f(vVerts);
this error occures:
no matching function for call to ‘GLBatch::CopyVertexData3f(GLfloat [9])’

The headers are included without any problem.

So what do I need to do?
I assume I have to compile GLTools by my self, don't I?
If yes, can you tell me how to do that?

Here's the Source Code Example:

// Triangle.cpp
// Our first OpenGL program that will just draw a triangle on the screen.

#include <GLTools.h> // OpenGL toolkit
#include <GLShaderManager.h> // Shader Manager Class



#ifdef __APPLE__
#include <glut/glut.h> // OS X version of GLUT
#else
#define FREEGLUT_STATIC
#include <GL/glut.h> // Windows FreeGlut equivalent
#endif

GLBatch triangleBatch;
GLShaderManager shaderManager;

///////////////////////////////////////////////////////////////////////////////
// Window has changed size, or has just been created. In either case, we need
// to use the window dimensions to set the viewport and the projection matrix.
void ChangeSize(int w, int h)
{
glViewport(0, 0, w, h);
}


///////////////////////////////////////////////////////////////////////////////
// This function does any needed initialization on the rendering context.
// This is the first opportunity to do any OpenGL related tasks.
void SetupRC()
{
// Blue background
glClearColor(0.0f, 0.0f, 1.0f, 1.0f );

shaderManager.InitializeStockShaders();

// Load up a triangle
GLfloat vVerts[] = { -0.5f, 0.0f, 0.0f,
0.5f, 0.0f, 0.0f,
0.0f, 0.5f, 0.0f };

triangleBatch.Begin(GL_TRIANGLES, 3);
triangleBatch.CopyVertexData3f(vVerts);
triangleBatch.End();

}



///////////////////////////////////////////////////////////////////////////////
// Called to draw scene
void RenderScene(void)
{
// Clear the window with current clearing color
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);

GLfloat vRed[] = { 1.0f, 0.0f, 0.0f, 1.0f };
shaderManager.UseStockShader(GLT_SHADER_IDENTITY, vRed);
triangleBatch.Draw();

// Perform the buffer swap to display back buffer
glutSwapBuffers();
}


///////////////////////////////////////////////////////////////////////////////
// Main entry point for GLUT based programs
int main(int argc, char* argv[])
{
gltSetWorkingDirectory(argv[0]);

glutInit(&argc, argv);
glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGBA | GLUT_DEPTH | GLUT_STENCIL);
glutInitWindowSize(800, 600);
glutCreateWindow("Triangle");
glutReshapeFunc(ChangeSize);
glutDisplayFunc(RenderScene);

GLenum err = glewInit();
if (GLEW_OK != err) {
fprintf(stderr, "GLEW Error: %s\n", glewGetErrorString(err));
return 1;
}

SetupRC();

glutMainLoop();
return 0;
}

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