int loadTexture(char* filename)
{
	int texWidth, texHeight;
	FILE *fp; 
	if ( (fp = fopen(filename,"rb")) == NULL) {
		fprintf(stderr, "Unable to open %s\n", filename);
		return -1;
	}

	char buff[128];

	fgets(buff, 128, fp);
	while(buff[0] == '#') fgets(buff, 128, fp);
	if(strncmp(buff, "P6", 2)) { 
		fclose(fp); 
		return -1; 
	}

	fgets(buff, 128, fp);
	while(buff[0] == '#') 
		fgets(buff, 128, fp);
        
	sscanf(buff, "%d %d", &texWidth, &texHeight);
        
	fgets(buff, 128, fp);
	while(buff[0] == '#') 
		fgets(buff, 128, fp);

	image = new GLubyte [ texWidth * texHeight * 3];
	fread(image, 1, texWidth * texHeight * 3, fp);
	
	fclose(fp);
	return 0;
}