/*Inside and Outside Shader*/

surface playingCard (float Ka = 1, Kd = 1, Ks = 0.1, roughness = 1;
		float Opec = 1;
		string OutSideTxt = "";
		string InSideTxt = "";
		color hilitecolor = 1;
		float blend = 0)
	{
	
	float switch = 1;
	color ambientcolor, diffusecolor, speccolor;
	color surfcolor1, surfcolor2 = 1;
	
/* STEP 1 - make a copy of the surface normal one unit in length */
normal	n = normalize(N);
normal	nf = faceforward(n, I);


/* STEP 3 - calculate the lighting components */
ambientcolor = Ka * ambient();
diffusecolor = Kd * diffuse(nf);

vector    i = normalize(-I);
speccolor = Ks * specular(nf, i, roughness) * hilitecolor;

/*My Code*/

if (OutSideTxt != "" || InSideTxt != "") /*This first Statement is to make sure that there are 
											textures in the string - if there are not then the
											it doesn't work*/

if (switch == 1 && n == nf)	/*Here I made a true statement with the switch and the normals and 
								textured it accordingly.*/
	{
	surfcolor1 = texture(OutSideTxt);
	surfcolor2 = texture(InSideTxt);
	}
else if (switch == 1 && n != nf) /*You will notice here that the statement is also true but the 
									textures are opposite*/
	{ 
	surfcolor1 = texture(InSideTxt);
	surfcolor2 = texture(OutSideTxt);
	}

/*Added a multiplyer to the opacity for more variance*/

Oi = Os * Opec;

/*Added a blend to the the textures so we could see through the to the other side - Was orginally 
a test; however, this turned out to be an inaccurate test*/

color mixedColor = mix(surfcolor1, surfcolor2, blend);

/* STEP 4 - calculate the apparent surface color */
Ci = Oi * Cs * mixedColor * (ambientcolor + diffusecolor + speccolor);
}