#include <GL/gl.h>
#include <GL/glu.h>
#include "glut.h"
#include "glslprogram.h"


GLSLProgram	*Pattern;
float		 Time;




void
Display( )
{
	. . .

	Pattern->Use( );
	Pattern->SetUniformVariable( "uTime",  Time );
	glCallList( SphereList );
	Pattern->UnUse( );	// Pattern->Use(0);  also works

	. . .
}


void
InitGraphics( )
{

	. . .

	// do this *after* opening the window and init'ing glew:

	Pattern = new GLSLProgram( );
	bool valid = Pattern->Create( "pattern.vert",  "pattern.frag" );
	if( ! valid )
	{
		fprintf( stderr, "Shader cannot be created!\n" );
		DoMainMenu( QUIT );
	}
	else
	{
		fprintf( stderr, "Shader created.\n" );
	}
	Pattern->SetVerbose( false );
}




// not great programming style, but if you are uncomfortable with compiling
// multiple files in visual studio, this works too...

#include "glslprogram.cpp"