//**************************************************************************/
// Copyright (c) 2012 Autodesk, Inc.
// All rights reserved.
// 
// These coded instructions, statements, and computer programs contain
// unpublished proprietary information written by Autodesk, Inc., and are
// protected by Federal copyright law. They may not be disclosed to third
// parties or copied or duplicated in any form, in whole or in part, without
// the prior written consent of Autodesk, Inc.
//**************************************************************************/

// World-view-projection transformation.
float4x4 gWVPXf : WorldViewProjection < string UIWidget = "None"; >;

// Vertex shader input structure.
struct VS_INPUT
{
    float4 Pos : POSITION;
    float4 Norm : NORMAL;
	float4 Tang : TANGENT;
	float4 Binorm : BINORMAL;
};

// Vertex shader output structure.
struct VS_TO_PS
{
    float4 HPos : POSITION;
    float4 Norm : TEXCOORD0;
	float4 Tang : TEXCOORD1;
	float4 Binorm : TEXCOORD2;
};

// Vertex shader.
VS_TO_PS VS(VS_INPUT In)
{
    VS_TO_PS Out;
	
    // Transform the position from object space to clip space for output.
    Out.HPos = mul(gWVPXf, In.Pos);

	Out.Norm = In.Norm;
    Out.Tang = In.Tang;
	Out.Binorm = In.Binorm;
	
    return Out;
}

// Pixel shader.
float4 PS0(VS_TO_PS In) : COLOR0
{
    return In.Norm;
}

float4 PS1(VS_TO_PS In) : COLOR0
{
    return In.Tang;
}

float4 PS2(VS_TO_PS In) : COLOR0
{
    return In.Binorm;
}

// Techniques.
technique Normal4AsColor
{
    pass P0
    {
        VertexProgram = compile vp40 VS();
        FragmentProgram = compile fp40 PS0();
    }
}

technique Tangent4AsColor
{
    pass P0
    {
        VertexProgram = compile vp40 VS();
        FragmentProgram = compile fp40 PS1();
    }
}

technique Binormal4AsColor
{
    pass P0
    {
        VertexProgram = compile vp40 VS();
        FragmentProgram = compile fp40 PS2();
    }
}