assimp/tools/assimp_view/Shaders.cpp

/*
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Open Asset Import Library (assimp)
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*/
#include "assimp_view.h"

namespace AssimpView  {

// ------------------------------------------------------------------------------------------------
std::string g_szNormalsShader = std::string(

    // World * View * Projection matrix\n"
    // NOTE: Assume that the material uses a WorldViewProjection matrix\n"
    "float4x4 WorldViewProjection	: WORLDVIEWPROJECTION;\n"
    "float4 OUTPUT_COLOR;\n"
    
    // Vertex shader input structure
    "struct VS_INPUT\n"
    "{\n"
        "// Position\n"
        "float3 Position : POSITION;\n"
    "};\n"

    // Vertex shader output structure for pixel shader usage
    "struct VS_OUTPUT\n"
  "{\n"
        "float4 Position : POSITION;\n"
    "};\n"

    // Vertex shader output structure for FixedFunction usage
    "struct VS_OUTPUT_FF\n"
    "{\n"
        "float4 Position : POSITION;\n"
    "float4 Color : COLOR;\n"
    "};\n"

    // Vertex shader for rendering normals using pixel shader
    "VS_OUTPUT RenderNormalsVS(VS_INPUT IN)\n"
    "{\n"
        "// Initialize the output structure with zero\n"
        "VS_OUTPUT Out = (VS_OUTPUT)0;\n"

        "// Multiply with the WorldViewProjection matrix\n"
        "Out.Position = mul(float4(IN.Position,1.0f),WorldViewProjection);\n"

        "return Out;\n"
    "}\n"

    // Vertex shader for rendering normals using fixed function pipeline
    "VS_OUTPUT_FF RenderNormalsVS_FF(VS_INPUT IN)\n"
  "{\n"
        "VS_OUTPUT_FF Out;\n"
        "Out.Position = mul(float4(IN.Position,1.0f),WorldViewProjection);\n"
    "Out.Color = OUTPUT_COLOR;\n"
        "return Out;\n"
    "}\n"

    // Pixel shader
    "float4 RenderNormalsPS() : COLOR\n"
    "{\n"
        "return OUTPUT_COLOR;\n"
    "}\n"

    // Technique for the normal rendering effect (ps_2_0)
    "technique RenderNormals\n"
    "{\n"
        "pass p0\n"
        "{\n"
        "CullMode=none;\n"
        "PixelShader = compile ps_2_0 RenderNormalsPS();\n"
        "VertexShader = compile vs_2_0 RenderNormalsVS();\n"
        "}\n"
    "};\n"

    // Technique for the normal rendering effect (fixed function)
    "technique RenderNormals_FF\n"
    "{\n"
        "pass p0\n"
        "{\n"
          "CullMode=none;\n"
          "VertexShader = compile vs_2_0 RenderNormalsVS_FF();\n"
      "ColorOp[0] = SelectArg1;\n"
      "ColorArg0[0] = Diffuse;\n"
      "AlphaOp[0] = SelectArg1;\n"
      "AlphaArg0[0] = Diffuse;\n"
        "}\n"
    "};\n"
    );

// ------------------------------------------------------------------------------------------------
std::string g_szSkyboxShader = std::string(

    // Sampler and texture for the skybox
    "textureCUBE lw_tex_envmap;\n"
    "samplerCUBE EnvironmentMapSampler = sampler_state\n"
    "{\n"
      "Texture = (lw_tex_envmap);\n"
      "AddressU = CLAMP;\n"
      "AddressV = CLAMP;\n"
      "AddressW = CLAMP;\n"

      "MAGFILTER = linear;\n"
      "MINFILTER = linear;\n"
    "};\n"

    // World * View * Projection matrix\n"
    // NOTE: Assume that the material uses a WorldViewProjection matrix\n"
    "float4x4 WorldViewProjection	: WORLDVIEWPROJECTION;\n"
    
    // Vertex shader input structure
    "struct VS_INPUT\n"
    "{\n"
        "float3 Position : POSITION;\n"
        "float3 Texture0 : TEXCOORD0;\n"
    "};\n"

    // Vertex shader output structure
    "struct VS_OUTPUT\n"
    "{\n"
        "float4 Position : POSITION;\n"
        "float3 Texture0 : TEXCOORD0;\n"
    "};\n"

    // Vertex shader
    "VS_OUTPUT RenderSkyBoxVS(VS_INPUT IN)\n"
    "{\n"
        "VS_OUTPUT Out;\n"

        // Multiply with the WorldViewProjection matrix
        "Out.Position = mul(float4(IN.Position,1.0f),WorldViewProjection);\n"

        // Set z to w to ensure z becomes 1.0 after the division through w occurs
        "Out.Position.z = Out.Position.w;\n"
    
        // Simply pass through texture coordinates
        "Out.Texture0 = IN.Texture0;\n"

        "return Out;\n"
    "}\n"

    // Pixel shader
    "float4 RenderSkyBoxPS(float3 Texture0 : TEXCOORD0) : COLOR\n"
    "{\n"
        // Lookup the skybox texture
        "return texCUBE(EnvironmentMapSampler,Texture0) ;\n"
    "}\n"

    // Technique for the skybox shader (ps_2_0)
    "technique RenderSkyBox\n"
    "{\n"
        "pass p0\n"
        "{\n"
          "ZWriteEnable = FALSE;\n"
          "FogEnable = FALSE;\n"
          "CullMode = NONE;\n"

          "PixelShader = compile ps_2_0 RenderSkyBoxPS();\n"
          "VertexShader = compile vs_2_0 RenderSkyBoxVS();\n"
        "}\n"
    "};\n"

  // -------------- same for static background image -----------------
    "texture TEXTURE_2D;\n"
    "sampler TEXTURE_SAMPLER = sampler_state\n"
    "{\n"
        "Texture = (TEXTURE_2D);\n"
    "};\n"

    "struct VS_OUTPUT2\n"
    "{\n"
        "float4 Position : POSITION;\n"
        "float2 TexCoord0 : TEXCOORD0;\n"
    "};\n"

    "VS_OUTPUT2 RenderImageVS(float4 INPosition : POSITION, float2 INTexCoord0 : TEXCOORD0 )\n"
    "{\n"
        "VS_OUTPUT2 Out;\n"

        "Out.Position.xy = INPosition.xy;\n"
        "Out.Position.z = Out.Position.w = 1.0f;\n"
        "Out.TexCoord0 = INTexCoord0;\n"

        "return Out;\n"
    "}\n"

    "float4 RenderImagePS(float2 IN : TEXCOORD0) : COLOR\n"
    "{\n"
        "return tex2D(TEXTURE_SAMPLER,IN);\n"
    "}\n"

    // Technique for the background image shader (ps_2_0)
    "technique RenderImage2D\n"
    "{\n"
        "pass p0\n"
        "{\n"
            "ZWriteEnable = FALSE;\n"
            "FogEnable = FALSE;\n"
            "CullMode = NONE;\n"
    
            "PixelShader = compile ps_2_0 RenderImagePS();\n"
            "VertexShader = compile vs_2_0 RenderImageVS();\n"
        "}\n"
    "};\n"
    );

std::string g_szDefaultShader = std::string(

    // World * View * Projection matrix
    // NOTE: Assume that the material uses a WorldViewProjection matrix
    "float4x4 WorldViewProjection	: WORLDVIEWPROJECTION;\n"
    "float4x4 World					: WORLD;\n"
    "float4x3 WorldInverseTranspose	: WORLDINVERSETRANSPOSE;\n"

    // light colors
    "float3 afLightColor[5];\n"
    // light direction
    "float3 afLightDir[5];\n"

    // position of the camera in worldspace\n"
    "float3 vCameraPos : CAMERAPOSITION;\n"

    // Bone matrices
//	"#ifdef AV_SKINNING \n"
    "float4x3 gBoneMatrix[60]; \n"
//	"#endif // AV_SKINNING \n"

    // Vertex shader input structure
    "struct VS_INPUT\n"
    "{\n"
        "float3 Position : POSITION;\n"
        "float3 Normal : NORMAL;\n"
//		"#ifdef AV_SKINNING \n"
            "float4 BlendIndices : BLENDINDICES;\n"
            "float4 BlendWeights : BLENDWEIGHT;\n"
//		"#endif // AV_SKINNING \n"
    "};\n"

    // Vertex shader output structure for pixel shader usage
    "struct VS_OUTPUT\n"
    "{\n"
        "float4 Position : POSITION;\n"
        "float3 ViewDir : TEXCOORD0;\n"
        "float3 Normal : TEXCOORD1;\n"
    "};\n"

    // Vertex shader output structure for fixed function
    "struct VS_OUTPUT_FF\n"
    "{\n"
        "float4 Position : POSITION;\n"
        "float4 Color : COLOR;\n"
    "};\n"

    // Vertex shader for pixel shader usage
    "VS_OUTPUT DefaultVShader(VS_INPUT IN)\n"
    "{\n"
        "VS_OUTPUT Out;\n"

//		"#ifdef AV_SKINNING \n"
        "float4 weights = IN.BlendWeights; \n"
        "weights.w = 1.0f - dot( weights.xyz, float3( 1, 1, 1)); \n"
        "float4 localPos = float4( IN.Position, 1.0f); \n"
        "float3 objPos = mul( localPos, gBoneMatrix[IN.BlendIndices.x]) * weights.x; \n"
        "objPos += mul( localPos, gBoneMatrix[IN.BlendIndices.y]) * weights.y; \n"
        "objPos += mul( localPos, gBoneMatrix[IN.BlendIndices.z]) * weights.z; \n"
        "objPos += mul( localPos, gBoneMatrix[IN.BlendIndices.w]) * weights.w; \n"
//		"#else \n"
//		"float3 objPos = IN.Position; \n"
//		"#endif // AV_SKINNING \n"

        // Multiply with the WorldViewProjection matrix
        "Out.Position = mul( float4( objPos, 1.0f), WorldViewProjection);\n"
        "float3 WorldPos = mul( float4( objPos, 1.0f), World);\n"
        "Out.ViewDir = vCameraPos - WorldPos;\n"
        "Out.Normal = mul(IN.Normal,WorldInverseTranspose);\n"

        "return Out;\n"
    "}\n"

    // Vertex shader for fixed function pipeline
    "VS_OUTPUT_FF DefaultVShader_FF(VS_INPUT IN)\n"
    "{\n"
        "VS_OUTPUT_FF Out;\n"

//		"#ifdef AV_SKINNING \n"
        "float4 weights = IN.BlendWeights; \n"
        "weights.w = 1.0f - dot( weights.xyz, float3( 1, 1, 1)); \n"
        "float4 localPos = float4( IN.Position, 1.0f); \n"
        "float3 objPos = mul( localPos, gBoneMatrix[IN.BlendIndices.x]) * weights.x; \n"
        "objPos += mul( localPos, gBoneMatrix[IN.BlendIndices.y]) * weights.y; \n"
        "objPos += mul( localPos, gBoneMatrix[IN.BlendIndices.z]) * weights.z; \n"
        "objPos += mul( localPos, gBoneMatrix[IN.BlendIndices.w]) * weights.w; \n"
//		"#else \n"
//		"float3 objPos = IN.Position; \n"
//		"#endif // AV_SKINNING \n"

        // Multiply with the WorldViewProjection matrix
        "Out.Position = mul( float4( objPos, 1.0f), WorldViewProjection);\n"

        "float3 worldNormal = normalize( mul( IN.Normal, (float3x3) WorldInverseTranspose)); \n"

        // per-vertex lighting. We simply assume light colors of unused lights to be black
        "Out.Color = float4( 0.2f, 0.2f, 0.2f, 1.0f); \n"
        "for( int a = 0; a < 2; a++)\n"
        "  Out.Color.rgb += saturate( dot( afLightDir[a], worldNormal)) * afLightColor[a].rgb; \n"
            "return Out;\n"
    "}\n"

    // Pixel shader for one light
    "float4 DefaultPShaderSpecular_D1(VS_OUTPUT IN) : COLOR\n"
    "{\n"
        "float4 OUT = float4(0.0f,0.0f,0.0f,1.0f);\n"

        "float3 Normal = normalize(IN.Normal);\n"
        "float3 ViewDir = normalize(IN.ViewDir);\n"

        "{\n"
            "float L1 = dot(Normal,afLightDir[0]) * 0.5f + 0.5f;\n"
            "float3 Reflect = reflect (Normal,afLightDir[0]);\n"
            "float fHalfLambert = L1*L1;\n"
            "OUT.rgb += afLightColor[0] * (fHalfLambert +\n"
                "saturate(fHalfLambert * 4.0f) * pow(dot(Reflect,ViewDir),9));\n"
        "}\n"
        "return OUT;\n"
    "}\n"

    // Pixel shader for two lights
    "float4 DefaultPShaderSpecular_D2(VS_OUTPUT IN) : COLOR\n"
    "{\n"
        "float4 OUT = float4(0.0f,0.0f,0.0f,1.0f);\n"

        "float3 Normal = normalize(IN.Normal);\n"
        "float3 ViewDir = normalize(IN.ViewDir);\n"

        "{\n"
            "float L1 = dot(Normal,afLightDir[0]) * 0.5f + 0.5f;\n"
            "float3 Reflect = reflect (ViewDir,Normal);\n"
            "float fHalfLambert = L1*L1;\n"
            "OUT.rgb += afLightColor[0] * (fHalfLambert +\n"
            "saturate(fHalfLambert * 4.0f) * pow(dot(Reflect,afLightDir[0]),9));\n"
        "}\n"
        "{\n"
            "float L1 = dot(Normal,afLightDir[1]) * 0.5f + 0.5f;\n"
            "float3 Reflect = reflect (ViewDir,Normal);\n"
            "float fHalfLambert = L1*L1;\n"
            "OUT.rgb += afLightColor[1] * (fHalfLambert +\n"
            "saturate(fHalfLambert * 4.0f) * pow(dot(Reflect,afLightDir[1]),9));\n"
        "}\n"
        "return OUT;\n"
    "}\n"
    // ----------------------------------------------------------------------------
    "float4 DefaultPShaderSpecular_PS20_D1(VS_OUTPUT IN) : COLOR\n"
    "{\n"
        "float4 OUT = float4(0.0f,0.0f,0.0f,1.0f);\n"

        "float3 Normal = normalize(IN.Normal);\n"
        "float3 ViewDir = normalize(IN.ViewDir);\n"

        "{\n"
            "float L1 = dot(Normal,afLightDir[0]);\n"
            "float3 Reflect = reflect (Normal,afLightDir[0]);\n"
            "OUT.rgb += afLightColor[0] * ((L1) +\n"
            "pow(dot(Reflect,ViewDir),9));\n"
        "}\n"

        "return OUT;\n"
    "}\n"
    // ----------------------------------------------------------------------------
    "float4 DefaultPShaderSpecular_PS20_D2(VS_OUTPUT IN) : COLOR\n"
    "{\n"
        "float4 OUT = float4(0.0f,0.0f,0.0f,1.0f);\n"

        "float3 Normal = normalize(IN.Normal);\n"
        "float3 ViewDir = normalize(IN.ViewDir);\n"

        "{\n"
            "float L1 = dot(Normal,afLightDir[0]);\n"
            "float3 Reflect = reflect (Normal,afLightDir[0]);\n"
            "OUT.rgb += afLightColor[0] * ((L1) +\n"
            "pow(dot(Reflect,ViewDir),9));\n"
        "}\n"
        "{\n"
            "float L1 = dot(Normal,afLightDir[1]);\n"
            "float3 Reflect = reflect (Normal,afLightDir[1]);\n"
            "OUT.rgb += afLightColor[1] * ((L1) +\n"
            "pow(dot(Reflect,ViewDir),9));\n"
        "}\n"
        "return OUT;\n"
    "}\n"


    // Technique for the default effect
    "technique DefaultFXSpecular_D1\n"
    "{\n"
        "pass p0\n"
        "{\n"
            "CullMode=none;\n"
            "PixelShader = compile ps_3_0 DefaultPShaderSpecular_D1();\n"
            "VertexShader = compile vs_3_0 DefaultVShader();\n"
        "}\n"
    "};\n"
    "technique DefaultFXSpecular_D2\n"
    "{\n"
        "pass p0\n"
        "{\n"
            "CullMode=none;\n"
            "PixelShader = compile ps_3_0 DefaultPShaderSpecular_D2();\n"
            "VertexShader = compile vs_3_0 DefaultVShader();\n"
        "}\n"
    "};\n"

    // Technique for the default effect (ps_2_0)
    "technique DefaultFXSpecular_PS20_D1\n"
    "{\n"
        "pass p0\n"
    "{\n"
          "CullMode=none;\n"
          "PixelShader = compile ps_2_0 DefaultPShaderSpecular_PS20_D1();\n"
          "VertexShader = compile vs_2_0 DefaultVShader();\n"
        "}\n"
    "};\n"
    "technique DefaultFXSpecular_PS20_D2\n"
    "{\n"
        "pass p0\n"
        "{\n"
          "CullMode=none;\n"
          "PixelShader = compile ps_2_0 DefaultPShaderSpecular_PS20_D2();\n"
          "VertexShader = compile vs_2_0 DefaultVShader();\n"
        "}\n"
    "};\n"

    // Technique for the default effect using the fixed function pixel pipeline
    "technique DefaultFXSpecular_FF\n"
    "{\n"
        "pass p0\n"
        "{\n"
            "CullMode=none;\n"
            "VertexShader = compile vs_2_0 DefaultVShader_FF();\n"
            "ColorOp[0] = SelectArg1;\n"
            "ColorArg0[0] = Diffuse;\n"
            "AlphaOp[0] = SelectArg1;\n"
            "AlphaArg0[0] = Diffuse;\n"
        "}\n"
    "};\n"
  );


std::string g_szMaterialShader = std::string(

    // World * View * Projection matrix
  // NOTE: Assume that the material uses a WorldViewProjection matrix
    "float4x4 WorldViewProjection	: WORLDVIEWPROJECTION;\n"
    "float4x4 World					: WORLD;\n"
    "float4x3 WorldInverseTranspose	: WORLDINVERSETRANSPOSE;\n"

    "#ifndef AV_DISABLESSS\n"
    "float4x3 ViewProj;\n"
    "float4x3 InvViewProj;\n"
    "#endif\n"

    "float4 DIFFUSE_COLOR;\n"
    "float4 SPECULAR_COLOR;\n"
    "float4 AMBIENT_COLOR;\n"
    "float4 EMISSIVE_COLOR;\n"

    "#ifdef AV_SPECULAR_COMPONENT\n"
    "float SPECULARITY;\n"
    "float SPECULAR_STRENGTH;\n"
    "#endif\n"
    "#ifdef AV_OPACITY\n"
    "float TRANSPARENCY;\n"
    "#endif\n"

    // light colors (diffuse and specular)
    "float4 afLightColor[5];\n"
    "float4 afLightColorAmbient[5];\n"

    // light direction
    "float3 afLightDir[5];\n"

    // position of the camera in worldspace
    "float3 vCameraPos : CAMERAPOSITION;\n"

    // Bone matrices
    "#ifdef AV_SKINNING \n"
    "float4x3 gBoneMatrix[60]; \n"
    "#endif // AV_SKINNING \n"

    "#ifdef AV_DIFFUSE_TEXTURE\n"
        "texture DIFFUSE_TEXTURE;\n"
        "sampler DIFFUSE_SAMPLER\n"
        "{\n"
          "Texture = <DIFFUSE_TEXTURE>;\n"
          "#ifdef AV_WRAPU\n"
          "AddressU = WRAP;\n"
          "#endif\n"
          "#ifdef AV_MIRRORU\n"
          "AddressU = MIRROR;\n"
          "#endif\n"
          "#ifdef AV_CLAMPU\n"
          "AddressU = CLAMP;\n"
          "#endif\n"
          "#ifdef AV_WRAPV\n"
          "AddressV = WRAP;\n"
          "#endif\n"
          "#ifdef AV_MIRRORV\n"
          "AddressV = MIRROR;\n"
          "#endif\n"
          "#ifdef AV_CLAMPV\n"
          "AddressV = CLAMP;\n"
          "#endif\n"
        "};\n"
    "#endif // AV_DIFFUSE_TEXTUR\n"

    "#ifdef AV_DIFFUSE_TEXTURE2\n"
        "texture DIFFUSE_TEXTURE2;\n"
        "sampler DIFFUSE_SAMPLER2\n"
        "{\n"
          "Texture = <DIFFUSE_TEXTURE2>;\n"
        "};\n"
    "#endif // AV_DIFFUSE_TEXTUR2\n"

    "#ifdef AV_SPECULAR_TEXTURE\n"
        "texture SPECULAR_TEXTURE;\n"
        "sampler SPECULAR_SAMPLER\n"
        "{\n"
          "Texture = <SPECULAR_TEXTURE>;\n"
        "};\n"
    "#endif // AV_SPECULAR_TEXTUR\n"

    "#ifdef AV_AMBIENT_TEXTURE\n"
        "texture AMBIENT_TEXTURE;\n"
        "sampler AMBIENT_SAMPLER\n"
        "{\n"
          "Texture = <AMBIENT_TEXTURE>;\n"
        "};\n"
    "#endif // AV_AMBIENT_TEXTUR\n"

    "#ifdef AV_LIGHTMAP_TEXTURE\n"
        "texture LIGHTMAP_TEXTURE;\n"
        "sampler LIGHTMAP_SAMPLER\n"
        "{\n"
          "Texture = <LIGHTMAP_TEXTURE>;\n"
        "};\n"
    "#endif // AV_LIGHTMAP_TEXTURE\n"

    "#ifdef AV_OPACITY_TEXTURE\n"
        "texture OPACITY_TEXTURE;\n"
        "sampler OPACITY_SAMPLER\n"
        "{\n"
          "Texture = <OPACITY_TEXTURE>;\n"
        "};\n"
    "#endif // AV_OPACITY_TEXTURE\n"

    "#ifdef AV_EMISSIVE_TEXTURE\n"
        "texture EMISSIVE_TEXTURE;\n"
        "sampler EMISSIVE_SAMPLER\n"
        "{\n"
          "Texture = <EMISSIVE_TEXTURE>;\n"
        "};\n"
    "#endif // AV_EMISSIVE_TEXTUR\n"

    "#ifdef AV_NORMAL_TEXTURE\n"
        "texture NORMAL_TEXTURE;\n"
        "sampler NORMAL_SAMPLER\n"
        "{\n"
          "Texture = <NORMAL_TEXTURE>;\n"
        "};\n"
    "#endif // AV_NORMAL_TEXTURE\n"

    "#ifdef AV_SKYBOX_LOOKUP\n"
        "textureCUBE lw_tex_envmap;\n"
        "samplerCUBE EnvironmentMapSampler = sampler_state\n"
        "{\n"
          "Texture = (lw_tex_envmap);\n"
          "AddressU = CLAMP;\n"
          "AddressV = CLAMP;\n"
          "AddressW = CLAMP;\n"

          "MAGFILTER = linear;\n"
          "MINFILTER = linear;\n"
        "};\n"
    "#endif // AV_SKYBOX_LOOKUP\n"

    // Vertex shader input structure
    "struct VS_INPUT\n"
    "{\n"
        "float3 Position : POSITION;\n"
        "float3 Normal : NORMAL;\n"
        "float4 Color : COLOR0;\n"
        "float3 Tangent   : TANGENT;\n"
        "float3 Bitangent : BINORMAL;\n"
        "float2 TexCoord0 : TEXCOORD0;\n"
        "#ifdef AV_TWO_UV \n"
        "float2 TexCoord1 : TEXCOORD1;\n"
        "#endif \n"
          "#ifdef AV_SKINNING \n"
            "float4 BlendIndices : BLENDINDICES;\n"
            "float4 BlendWeights : BLENDWEIGHT;\n"
         "#endif // AV_SKINNING \n"
    "};\n"

    // Vertex shader output structure for pixel shader usage
    "struct VS_OUTPUT\n"
    "{\n"
        "float4 Position : POSITION;\n"
        "float3 ViewDir : TEXCOORD0;\n"

        "float4 Color : COLOR0;\n"

        "#ifndef AV_NORMAL_TEXTURE\n"
        "float3 Normal  : TEXCOORD1;\n"
        "#endif\n"

        "float2 TexCoord0 : TEXCOORD2;\n"
        "#ifdef AV_TWO_UV \n"
        "float2 TexCoord1 : TEXCOORD3;\n"
        "#endif \n"

        "#ifdef AV_NORMAL_TEXTURE\n"
        "float3 Light0 : TEXCOORD3;\n"
        "float3 Light1 : TEXCOORD4;\n"
        "#endif\n"
    "};\n"

    // Vertex shader output structure for fixed function pixel pipeline
    "struct VS_OUTPUT_FF\n"
    "{\n"
        "float4 Position : POSITION;\n"
        "float4 DiffuseColor : COLOR0;\n"
        "float4 SpecularColor : COLOR1;\n"
        "float2 TexCoord0 : TEXCOORD0;\n"
    "};\n"


    // Selective SuperSampling in screenspace for reflection lookups
    "#define GetSSSCubeMap(_refl) (texCUBElod(EnvironmentMapSampler,float4(_refl,0.0f)).rgb) \n"


    // Vertex shader for pixel shader usage and one light
    "VS_OUTPUT MaterialVShader_D1(VS_INPUT IN)\n"
    "{\n"
        "VS_OUTPUT Out = (VS_OUTPUT)0;\n"

        "#ifdef AV_SKINNING \n"
        "float4 weights = IN.BlendWeights; \n"
        "weights.w = 1.0f - dot( weights.xyz, float3( 1, 1, 1)); \n"
        "float4 localPos = float4( IN.Position, 1.0f); \n"
        "float3 objPos = mul( localPos, gBoneMatrix[IN.BlendIndices.x]) * weights.x; \n"
        "objPos += mul( localPos, gBoneMatrix[IN.BlendIndices.y]) * weights.y; \n"
        "objPos += mul( localPos, gBoneMatrix[IN.BlendIndices.z]) * weights.z; \n"
        "objPos += mul( localPos, gBoneMatrix[IN.BlendIndices.w]) * weights.w; \n"
        "#else \n"
        "float3 objPos = IN.Position; \n"
        "#endif // AV_SKINNING \n"

        // Multiply with the WorldViewProjection matrix
        "Out.Position = mul( float4( objPos, 1.0f), WorldViewProjection);\n"
        "float3 WorldPos = mul( float4( objPos, 1.0f), World);\n"
        "Out.TexCoord0 = IN.TexCoord0;\n"
        "#ifdef AV_TWO_UV \n"
        "Out.TexCoord1 = IN.TexCoord1;\n"
        "#endif\n"
        "Out.Color = IN.Color;\n"

        "#ifndef AV_NORMAL_TEXTURE\n"
        "Out.ViewDir = vCameraPos - WorldPos;\n"
        "Out.Normal = mul(IN.Normal,WorldInverseTranspose);\n"
        "#endif\n"
        
        "#ifdef AV_NORMAL_TEXTURE\n"
        "float3x3 TBNMatrix = float3x3(IN.Tangent, IN.Bitangent, IN.Normal);\n"
        "float3x3 WTTS      = mul(TBNMatrix, (float3x3)WorldInverseTranspose);\n"
        "Out.Light0         = normalize(mul(WTTS, afLightDir[0] ));\n"
        "Out.ViewDir = normalize(mul(WTTS, (vCameraPos - WorldPos)));\n"
        "#endif\n"
        "return Out;\n"
    "}\n"

    // Vertex shader for pixel shader usage and two lights
    "VS_OUTPUT MaterialVShader_D2(VS_INPUT IN)\n"
    "{\n"
        "VS_OUTPUT Out = (VS_OUTPUT)0;\n"

        "#ifdef AV_SKINNING \n"
        "float4 weights = IN.BlendWeights; \n"
        "weights.w = 1.0f - dot( weights.xyz, float3( 1, 1, 1)); \n"
        "float4 localPos = float4( IN.Position, 1.0f); \n"
        "float3 objPos = mul( localPos, gBoneMatrix[IN.BlendIndices.x]) * weights.x; \n"
        "objPos += mul( localPos, gBoneMatrix[IN.BlendIndices.y]) * weights.y; \n"
        "objPos += mul( localPos, gBoneMatrix[IN.BlendIndices.z]) * weights.z; \n"
        "objPos += mul( localPos, gBoneMatrix[IN.BlendIndices.w]) * weights.w; \n"
        "#else \n"
        "float3 objPos = IN.Position; \n"
        "#endif // AV_SKINNING \n"

        // Multiply with the WorldViewProjection matrix
        "Out.Position = mul( float4( objPos, 1.0f), WorldViewProjection);\n"
        "float3 WorldPos = mul( float4( objPos, 1.0f), World);\n"
        "Out.TexCoord0 = IN.TexCoord0;\n"
        "#ifdef AV_TWO_UV \n"
        "Out.TexCoord1 = IN.TexCoord1;\n"
        "#endif\n"
        "Out.Color = IN.Color;\n"

        "#ifndef AV_NORMAL_TEXTURE\n"
        "Out.ViewDir = vCameraPos - WorldPos;\n"
        "Out.Normal = mul(IN.Normal,WorldInverseTranspose);\n"
        "#endif\n"

        "#ifdef AV_NORMAL_TEXTURE\n"
        "float3x3 TBNMatrix = float3x3(IN.Tangent, IN.Bitangent, IN.Normal);\n"
        "float3x3 WTTS      = mul(TBNMatrix, (float3x3)WorldInverseTranspose);\n"
        "Out.Light0         = normalize(mul(WTTS, afLightDir[0] ));\n"
        "Out.Light1         = normalize(mul(WTTS, afLightDir[1] ));\n"
        "Out.ViewDir = normalize(mul(WTTS, (vCameraPos - WorldPos)));\n"
        "#endif\n"
        "return Out;\n"
    "}\n"

    // Vertex shader for zero to five lights using the fixed function pixel pipeline
    "VS_OUTPUT_FF MaterialVShader_FF(VS_INPUT IN)\n"
    "{\n"
        "VS_OUTPUT_FF Out = (VS_OUTPUT_FF)0;\n"

        "#ifdef AV_SKINNING \n"
        "float4 weights = IN.BlendWeights; \n"
        "weights.w = 1.0f - dot( weights.xyz, float3( 1, 1, 1)); \n"
        "float4 localPos = float4( IN.Position, 1.0f); \n"
        "float3 objPos = mul( localPos, gBoneMatrix[IN.BlendIndices.x]) * weights.x; \n"
        "objPos += mul( localPos, gBoneMatrix[IN.BlendIndices.y]) * weights.y; \n"
        "objPos += mul( localPos, gBoneMatrix[IN.BlendIndices.z]) * weights.z; \n"
        "objPos += mul( localPos, gBoneMatrix[IN.BlendIndices.w]) * weights.w; \n"
        "#else \n"
        "float3 objPos = IN.Position; \n"
        "#endif // AV_SKINNING \n"

        // Multiply with the WorldViewProjection matrix
        "Out.Position = mul( float4( objPos, 1.0f), WorldViewProjection);\n"
        "float3 worldPos = mul( float4( objPos, 1.0f), World);\n"
        "float3 worldNormal = normalize( mul( IN.Normal, (float3x3) WorldInverseTranspose)); \n"
        "Out.TexCoord0 = IN.TexCoord0;\n"

        // calculate per-vertex diffuse lighting including ambient part
        "float4 diffuseColor = float4( 0.0f, 0.0f, 0.0f, 1.0f); \n"
        "for( int a = 0; a < 2; a++) \n"
        "  diffuseColor.rgb += saturate( dot( afLightDir[a], worldNormal)) * afLightColor[a].rgb; \n"
        // factor in material properties and a bit of ambient lighting
        "Out.DiffuseColor = diffuseColor * DIFFUSE_COLOR + float4( 0.2f, 0.2f, 0.2f, 1.0f) * AMBIENT_COLOR; ; \n"

        // and specular including emissive part
        "float4 specularColor = float4( 0.0f, 0.0f, 0.0f, 1.0f); \n"
        "#ifdef AV_SPECULAR_COMPONENT\n"
        "float3 viewDir = normalize( worldPos - vCameraPos); \n"
        "for( int a = 0; a < 2; a++) \n"
        "{ \n"
        "  float3 reflDir = reflect( afLightDir[a], worldNormal); \n"
        "  float specIntensity = pow( saturate( dot( reflDir, viewDir)), SPECULARITY) * SPECULAR_STRENGTH; \n"
        "  specularColor.rgb += afLightColor[a] * specIntensity; \n"
        "} \n"
        "#endif // AV_SPECULAR_COMPONENT\n"
        // factor in material properties and the emissive part
        "Out.SpecularColor = specularColor * SPECULAR_COLOR + EMISSIVE_COLOR; \n"

        "return Out;\n"
    "}\n"


    // Pixel shader - one light
    "float4 MaterialPShaderSpecular_D1(VS_OUTPUT IN) : COLOR\n"
    "{\n"
        "float4 OUT = float4(0.0f,0.0f,0.0f,1.0f);\n"

        "#ifdef AV_NORMAL_TEXTURE\n"
        "float3 IN_Light0 = normalize(IN.Light0);\n"
        "float3 Normal  =  normalize(2.0f * tex2D(NORMAL_SAMPLER, IN.TexCoord0).rgb - 1.0f);\n"
        "#else\n"
        "float3 Normal = normalize(IN.Normal);\n"
        "#endif \n"
        "float3 ViewDir = normalize(IN.ViewDir);\n"
        "#ifdef AV_SPECULAR_COMPONENT\n"
            "float3 Reflect = normalize(reflect (-ViewDir,Normal));\n"
        "#endif // !AV_SPECULAR_COMPONENT\n"

        "{\n"
        "#ifdef AV_NORMAL_TEXTURE\n"
            "float L1 =  dot(Normal,IN_Light0) * 0.5f + 0.5f;\n"
            "#define AV_LIGHT_0 IN_Light0\n"
            // would need to convert the reflection vector into world space ....
            // simply let it ...
        "#else\n"
            "float L1 = dot(Normal,afLightDir[0]) * 0.5f + 0.5f;\n"
            "#define AV_LIGHT_0 afLightDir[0]\n"
        "#endif\n"
        "#ifdef AV_DIFFUSE_TEXTURE2\n"
            "float fHalfLambert = 1.f;\n"
        "#else\n"
            "float fHalfLambert = L1*L1;\n"
        "#endif \n"
        "#ifdef AV_DIFFUSE_TEXTURE\n"
            "OUT.rgb += afLightColor[0].rgb * DIFFUSE_COLOR.rgb * tex2D(DIFFUSE_SAMPLER,IN.TexCoord0).rgb * fHalfLambert * IN.Color.rgb +\n"
        "#else\n"
            "OUT.rgb += afLightColor[0].rgb * DIFFUSE_COLOR.rgb * fHalfLambert * IN.Color.rgb +\n"
        "#endif // !AV_DIFFUSE_TEXTURE\n"

        
        "#ifdef AV_SPECULAR_COMPONENT\n"
            "#ifndef AV_SKYBOX_LOOKUP\n"
                "#ifdef AV_SPECULAR_TEXTURE\n"
                    "SPECULAR_COLOR.rgb * SPECULAR_STRENGTH * afLightColor[0].rgb * tex2D(SPECULAR_SAMPLER,IN.TexCoord0).rgb * (saturate(fHalfLambert * 2.0f) * pow(dot(Reflect,AV_LIGHT_0),SPECULARITY)) + \n"
                "#else\n"
                    "SPECULAR_COLOR.rgb * SPECULAR_STRENGTH * afLightColor[0].rgb * (saturate(fHalfLambert * 2.0f) * pow(dot(Reflect,AV_LIGHT_0),SPECULARITY)) + \n"
                "#endif // !AV_SPECULAR_TEXTURE\n"
            "#else\n"
                "#ifdef AV_SPECULAR_TEXTURE\n"
                    "SPECULAR_COLOR.rgb * SPECULAR_STRENGTH * afLightColor[0].rgb * GetSSSCubeMap(Reflect) * tex2D(SPECULAR_SAMPLER,IN.TexCoord0).rgb * (saturate(fHalfLambert * 2.0f) * pow(dot(Reflect,AV_LIGHT_0),SPECULARITY)) + \n"
                "#else\n"
                    "SPECULAR_COLOR.rgb * SPECULAR_STRENGTH * afLightColor[0].rgb * GetSSSCubeMap(Reflect) * (saturate(fHalfLambert * 2.0f) * pow(dot(Reflect,AV_LIGHT_0),SPECULARITY)) + \n"
                "#endif // !AV_SPECULAR_TEXTURE\n"
            "#endif // !AV_SKYBOX_LOOKUP\n"
        "#endif // !AV_SPECULAR_COMPONENT\n"

        "#ifdef AV_AMBIENT_TEXTURE\n"
            "AMBIENT_COLOR.rgb * afLightColorAmbient[0].rgb * tex2D(AMBIENT_SAMPLER,IN.TexCoord0).rgb +\n"
        "#else\n"
            "AMBIENT_COLOR.rgb * afLightColorAmbient[0].rgb + \n"
        "#endif // !AV_AMBIENT_TEXTURE\n"
            "#ifdef AV_EMISSIVE_TEXTURE\n"
            "EMISSIVE_COLOR.rgb * tex2D(EMISSIVE_SAMPLER,IN.TexCoord0).rgb;\n"
        "#else \n"
            "EMISSIVE_COLOR.rgb;\n"
        "#endif // !AV_EMISSIVE_TEXTURE\n"
        "}\n"
        "#ifdef AV_OPACITY\n"
        "OUT.a = TRANSPARENCY;\n"
        "#endif\n"
        "#ifdef AV_LIGHTMAP_TEXTURE\n"
        "OUT.rgb *= tex2D(LIGHTMAP_SAMPLER,AV_LIGHTMAP_TEXTURE_UV_COORD).rgb*LM_STRENGTH;\n"
        "#endif\n"
        "#ifdef AV_OPACITY_TEXTURE\n"
        "OUT.a *= tex2D(OPACITY_SAMPLER,IN.TexCoord0). AV_OPACITY_TEXTURE_REGISTER_MASK;\n"
        "#endif\n"
        "return OUT;\n"

        "#undef AV_LIGHT_0\n"
    "}\n"

    // Pixel shader - two lights
    "float4 MaterialPShaderSpecular_D2(VS_OUTPUT IN) : COLOR\n"
    "{\n"
        "float4 OUT = float4(0.0f,0.0f,0.0f,1.0f);\n"

        "#ifdef AV_NORMAL_TEXTURE\n"
        "float3 IN_Light0 = normalize(IN.Light0);\n"
        "float3 IN_Light1 = normalize(IN.Light1);\n"
        "float3 Normal  =  normalize(2.0f * tex2D(NORMAL_SAMPLER, IN.TexCoord0).rgb - 1.0f);\n"
        "#else\n"
        "float3 Normal = normalize(IN.Normal);\n"
        "#endif \n"
        "float3 ViewDir = normalize(IN.ViewDir);\n"
        "#ifdef AV_SPECULAR_COMPONENT\n"
            "float3 Reflect = -normalize(reflect (ViewDir,Normal));\n"
        "#endif // !AV_SPECULAR_COMPONENT\n"

        "{\n"
        
        "#ifdef AV_NORMAL_TEXTURE\n"
            "float L1 = dot(Normal,IN_Light0) * 0.5f + 0.5f;\n"
            "#define AV_LIGHT_0 IN_Light0\n"
        "#else\n"
            "float L1 = dot(Normal,afLightDir[0]) * 0.5f + 0.5f;\n"
            "#define AV_LIGHT_0 afLightDir[0]\n"
        "#endif\n"
            "float fHalfLambert = L1*L1;\n"
            
        "#ifdef AV_DIFFUSE_TEXTURE\n"
            "OUT.rgb += afLightColor[0].rgb * DIFFUSE_COLOR.rgb * tex2D(DIFFUSE_SAMPLER,IN.TexCoord0).rgb * fHalfLambert  * IN.Color.rgb +\n"
        "#else\n"
            "OUT.rgb += afLightColor[0].rgb * DIFFUSE_COLOR.rgb * fHalfLambert  * IN.Color.rgb +\n"
        "#endif // !AV_DIFFUSE_TEXTURE\n"

        "#ifdef AV_SPECULAR_COMPONENT\n"
            "#ifndef AV_SKYBOX_LOOKUP\n"
                "#ifdef AV_SPECULAR_TEXTURE\n"
                    "SPECULAR_COLOR.rgb * SPECULAR_STRENGTH * afLightColor[0].rgb * tex2D(SPECULAR_SAMPLER,IN.TexCoord0).rgb * (saturate(fHalfLambert * 2.0f) * pow(dot(Reflect,AV_LIGHT_0),SPECULARITY)) + \n"
                "#else\n"
                    "SPECULAR_COLOR.rgb * SPECULAR_STRENGTH * afLightColor[0].rgb * (saturate(fHalfLambert * 2.0f) * pow(dot(Reflect,AV_LIGHT_0),SPECULARITY)) + \n"
                "#endif // !AV_SPECULAR_TEXTURE\n"
            "#else\n"
                "#ifdef AV_SPECULAR_TEXTURE\n"
                    "SPECULAR_COLOR.rgb * SPECULAR_STRENGTH * afLightColor[0].rgb * GetSSSCubeMap(Reflect) * tex2D(SPECULAR_SAMPLER,IN.TexCoord0).rgb * (saturate(fHalfLambert * 2.0f) * pow(dot(Reflect,AV_LIGHT_0),SPECULARITY)) + \n"
                "#else\n"
                    "SPECULAR_COLOR.rgb * SPECULAR_STRENGTH * afLightColor[0].rgb * GetSSSCubeMap(Reflect) * (saturate(fHalfLambert * 2.0f) * pow(dot(Reflect,AV_LIGHT_0),SPECULARITY)) + \n"
                "#endif // !AV_SPECULAR_TEXTURE\n"
            "#endif // !AV_SKYBOX_LOOKUP\n"
        "#endif // !AV_SPECULAR_COMPONENT\n"
        "#ifdef AV_AMBIENT_TEXTURE\n"
            "AMBIENT_COLOR.rgb * afLightColorAmbient[0].rgb * tex2D(AMBIENT_SAMPLER,IN.TexCoord0).rgb + \n"
        "#else\n"
            "AMBIENT_COLOR.rgb * afLightColorAmbient[0].rgb + \n"
        "#endif // !AV_AMBIENT_TEXTURE\n"
        "#ifdef AV_EMISSIVE_TEXTURE\n"
            "EMISSIVE_COLOR.rgb * tex2D(EMISSIVE_SAMPLER,IN.TexCoord0).rgb;\n"
        "#else \n"
            "EMISSIVE_COLOR.rgb;\n"
        "#endif // !AV_EMISSIVE_TEXTURE\n"
        "}\n"
        "{\n"
        "#ifdef AV_NORMAL_TEXTURE\n"
            "float L1 = dot(Normal,IN_Light1) * 0.5f + 0.5f;\n"
            "#define AV_LIGHT_1 IN_Light1\n"
        "#else\n"
            "float L1 = dot(Normal,afLightDir[1]) * 0.5f + 0.5f;\n"
            "#define AV_LIGHT_1 afLightDir[1]\n"
        "#endif\n"
            "float fHalfLambert = L1*L1;\n"
        "#ifdef AV_DIFFUSE_TEXTURE\n"
            "OUT.rgb += afLightColor[1].rgb * DIFFUSE_COLOR.rgb * tex2D(DIFFUSE_SAMPLER,IN.TexCoord0).rgb * fHalfLambert  * IN.Color.rgb +\n"
        "#else\n"
            "OUT.rgb += afLightColor[1].rgb * DIFFUSE_COLOR.rgb * fHalfLambert   * IN.Color.rgb +\n"
        "#endif // !AV_DIFFUSE_TEXTURE\n"

        "#ifdef AV_SPECULAR_COMPONENT\n"
            "#ifndef AV_SKYBOX_LOOKUP\n"
                "#ifdef AV_SPECULAR_TEXTURE\n"
                    "SPECULAR_COLOR.rgb * SPECULAR_STRENGTH * afLightColor[1].rgb * tex2D(SPECULAR_SAMPLER,IN.TexCoord0).rgb * (saturate(fHalfLambert * 2.0f) * pow(dot(Reflect,AV_LIGHT_1),SPECULARITY)) + \n"
                "#else\n"
                    "SPECULAR_COLOR.rgb * SPECULAR_STRENGTH * afLightColor[1].rgb * (saturate(fHalfLambert * 2.0f) * pow(dot(Reflect,AV_LIGHT_1),SPECULARITY)) + \n"
                "#endif // !AV_SPECULAR_TEXTURE\n"
            "#else\n"
                "#ifdef AV_SPECULAR_TEXTURE\n"
                    "SPECULAR_COLOR.rgb * SPECULAR_STRENGTH * afLightColor[1].rgb * GetSSSCubeMap(Reflect) * tex2D(SPECULAR_SAMPLER,IN.TexCoord0).rgb * (saturate(fHalfLambert * 2.0f) * pow(dot(Reflect,AV_LIGHT_1),SPECULARITY)) + \n"
                "#else\n"
                    "SPECULAR_COLOR.rgb * SPECULAR_STRENGTH * afLightColor[1].rgb * GetSSSCubeMap(Reflect) * (saturate(fHalfLambert * 2.0f) * pow(dot(Reflect,AV_LIGHT_1),SPECULARITY)) + \n"
                "#endif // !AV_SPECULAR_TEXTURE\n"
            "#endif // !AV_SKYBOX_LOOKUP\n"
        "#endif // !AV_SPECULAR_COMPONENT\n"
        "#ifdef AV_AMBIENT_TEXTURE\n"
            "AMBIENT_COLOR.rgb * afLightColorAmbient[1].rgb * tex2D(AMBIENT_SAMPLER,IN.TexCoord0).rgb + \n"
        "#else\n"
            "AMBIENT_COLOR.rgb * afLightColorAmbient[1].rgb + \n"
        "#endif // !AV_AMBIENT_TEXTURE\n"
        "#ifdef AV_EMISSIVE_TEXTURE\n"
            "EMISSIVE_COLOR.rgb * tex2D(EMISSIVE_SAMPLER,IN.TexCoord0).rgb;\n"
        "#else \n"
            "EMISSIVE_COLOR.rgb;\n"
        "#endif // !AV_EMISSIVE_TEXTURE\n"
        "}\n"
        "#ifdef AV_OPACITY\n"
        "OUT.a = TRANSPARENCY;\n"
        "#endif\n"
        "#ifdef AV_LIGHTMAP_TEXTURE\n"
        "OUT.rgb *= tex2D(LIGHTMAP_SAMPLER,AV_LIGHTMAP_TEXTURE_UV_COORD).rgb*LM_STRENGTH;\n"
        "#endif\n"
        "#ifdef AV_OPACITY_TEXTURE\n"
        "OUT.a *= tex2D(OPACITY_SAMPLER,IN.TexCoord0). AV_OPACITY_TEXTURE_REGISTER_MASK;\n"
        "#endif\n"
        "return OUT;\n"

        "#undef AV_LIGHT_0\n"
        "#undef AV_LIGHT_1\n"
    "}\n"

    // Same pixel shader again, one light
    "float4 MaterialPShaderSpecular_PS20_D1(VS_OUTPUT IN) : COLOR\n"
    "{\n"
        "float4 OUT = float4(0.0f,0.0f,0.0f,1.0f);\n"

        "#ifdef AV_NORMAL_TEXTURE\n"
        "float3 IN_Light0 = normalize(IN.Light0);\n"
        "float3 Normal  =  normalize(2.0f * tex2D(NORMAL_SAMPLER, IN.TexCoord0).rgb - 1.0f);\n"
        "#else\n"
        "float3 Normal = normalize(IN.Normal);\n"
        "#endif \n"
        "float3 ViewDir = normalize(IN.ViewDir);\n"

        "{\n"
        "#ifdef AV_NORMAL_TEXTURE\n"
        "float L1 = dot(Normal,IN_Light0) * 0.5f + 0.5f;\n"
        "float3 Reflect = reflect (Normal,IN_Light0);\n"
        "#else\n"
        "float L1 = dot(Normal,afLightDir[0]) * 0.5f + 0.5f;\n"
        "float3 Reflect = reflect (Normal,afLightDir[0]);\n"
        "#endif\n"
        "#ifdef AV_DIFFUSE_TEXTURE\n"
            "OUT.rgb += afLightColor[0].rgb * DIFFUSE_COLOR.rgb * tex2D(DIFFUSE_SAMPLER,IN.TexCoord0).rgb * L1 +\n"
        "#else\n"
            "OUT.rgb += afLightColor[0].rgb * DIFFUSE_COLOR.rgb * L1 +\n"
        "#endif // !AV_DIFFUSE_TEXTURE\n"

        "#ifdef AV_SPECULAR_COMPONENT\n"
        "#ifdef AV_SPECULAR_TEXTURE\n"
            "SPECULAR_COLOR.rgb * SPECULAR_STRENGTH * afLightColor[0].rgb * tex2D(SPECULAR_SAMPLER,IN.TexCoord0).rgb * (saturate(L1 * 4.0f) * pow(dot(Reflect,ViewDir),SPECULARITY)) + \n"
        "#else\n"
            "SPECULAR_COLOR.rgb * SPECULAR_STRENGTH * afLightColor[0].rgb * (saturate(L1 * 4.0f) * pow(dot(Reflect,ViewDir),SPECULARITY)) + \n"
        "#endif // !AV_SPECULAR_TEXTURE\n"
        "#endif // !AV_SPECULAR_COMPONENT\n"
        "#ifdef AV_AMBIENT_TEXTURE\n"
            "AMBIENT_COLOR.rgb * afLightColorAmbient[0].rgb * tex2D(AMBIENT_SAMPLER,IN.TexCoord0).rgb +\n"
        "#else\n"
            "AMBIENT_COLOR.rgb * afLightColorAmbient[0].rgb +\n"
        "#endif // !AV_AMBIENT_TEXTURE\n"
        "#ifdef AV_EMISSIVE_TEXTURE\n"
            "EMISSIVE_COLOR.rgb * tex2D(EMISSIVE_SAMPLER,IN.TexCoord0).rgb;\n"
        "#else \n"
            "EMISSIVE_COLOR.rgb;\n"
        "#endif // !AV_EMISSIVE_TEXTURE\n"
        "}\n"

        "#ifdef AV_OPACITY\n"
        "OUT.a = TRANSPARENCY;\n"
        "#endif\n"
        "#ifdef AV_OPACITY_TEXTURE\n"
        "OUT.a *= tex2D(OPACITY_SAMPLER,IN.TexCoord0). AV_OPACITY_TEXTURE_REGISTER_MASK;\n"
        "#endif\n"
        "return OUT;\n"
    "}\n"

    // Same pixel shader again, two lights
    "float4 MaterialPShaderSpecular_PS20_D2(VS_OUTPUT IN) : COLOR\n"
    "{\n"
        "float4 OUT = float4(0.0f,0.0f,0.0f,1.0f);\n"

        "#ifdef AV_NORMAL_TEXTURE\n"
        "float3 IN_Light0 = normalize(IN.Light0);\n"
        "float3 IN_Light1 = normalize(IN.Light1);\n"
        "float3 Normal  =  normalize(2.0f * tex2D(NORMAL_SAMPLER, IN.TexCoord0) - 1.0f);\n"
        "#else\n"
        "float3 Normal = normalize(IN.Normal);\n"
        "#endif \n"
        "float3 ViewDir = normalize(IN.ViewDir);\n"

        "{\n"
        "#ifdef AV_NORMAL_TEXTURE\n"
        "float L1 = dot(Normal,IN_Light0) * 0.5f + 0.5f;\n"
        "float3 Reflect = reflect (Normal,IN_Light0);\n"
        "#else\n"
        "float L1 = dot(Normal,afLightDir[0]) * 0.5f + 0.5f;\n"
        "float3 Reflect = reflect (Normal,afLightDir[0]);\n"
        "#endif\n"
        "#ifdef AV_DIFFUSE_TEXTURE\n"
            "OUT.rgb += afLightColor[0].rgb * DIFFUSE_COLOR.rgb * tex2D(DIFFUSE_SAMPLER,IN.TexCoord0).rgb * L1 +\n"
        "#else\n"
            "OUT.rgb += afLightColor[0].rgb * DIFFUSE_COLOR.rgb * L1 +\n"
        "#endif // !AV_DIFFUSE_TEXTURE\n"

        "#ifdef AV_SPECULAR_COMPONENT\n"
        "#ifdef AV_SPECULAR_TEXTURE\n"
            "SPECULAR_COLOR.rgb * SPECULAR_STRENGTH * afLightColor[0].rgb * tex2D(SPECULAR_SAMPLER,IN.TexCoord0).rgb * (saturate(L1 * 4.0f) * pow(dot(Reflect,ViewDir),SPECULARITY)) + \n"
        "#else\n"
            "SPECULAR_COLOR.rgb * SPECULAR_STRENGTH * afLightColor[0].rgb * (saturate(L1 * 4.0f) * pow(dot(Reflect,ViewDir),SPECULARITY)) + \n"
        "#endif // !AV_SPECULAR_TEXTURE\n"
        "#endif // !AV_SPECULAR_COMPONENT\n"
        "#ifdef AV_AMBIENT_TEXTURE\n"
            "AMBIENT_COLOR.rgb * afLightColorAmbient[0].rgb * tex2D(AMBIENT_SAMPLER,IN.TexCoord0).rgb +\n"
        "#else\n"
            "AMBIENT_COLOR.rgb * afLightColorAmbient[0].rgb +\n"
        "#endif // !AV_AMBIENT_TEXTURE\n"
        "#ifdef AV_EMISSIVE_TEXTURE\n"
            "EMISSIVE_COLOR.rgb * tex2D(EMISSIVE_SAMPLER,IN.TexCoord0).rgb;\n"
        "#else \n"
            "EMISSIVE_COLOR.rgb;\n"
        "#endif // !AV_EMISSIVE_TEXTURE\n"
        "}\n"
        "{\n"
        "#ifdef AV_NORMAL_TEXTURE\n"
        "float L1 = dot(Normal,IN_Light1) * 0.5f + 0.5f;\n"
        "float3 Reflect = reflect (Normal,IN_Light1);\n"
        "#else\n"
        "float L1 = dot(Normal,afLightDir[1]) * 0.5f + 0.5f;\n"
        "float3 Reflect = reflect (Normal,afLightDir[1]);\n"
        "#endif\n"
        "#ifdef AV_DIFFUSE_TEXTURE\n"
            "OUT.rgb += afLightColor[1].rgb * DIFFUSE_COLOR.rgb * tex2D(DIFFUSE_SAMPLER,IN.TexCoord0).rgb * L1 +\n"
        "#else\n"
            "OUT.rgb += afLightColor[1].rgb * DIFFUSE_COLOR.rgb * L1 +\n"
        "#endif // !AV_DIFFUSE_TEXTURE\n"

        "#ifdef AV_SPECULAR_COMPONENT\n"
        "#ifdef AV_SPECULAR_TEXTURE\n"
            "SPECULAR_COLOR.rgb * SPECULAR_STRENGTH * afLightColor[1].rgb * tex2D(SPECULAR_SAMPLER,IN.TexCoord0).rgb * (saturate(L1 * 4.0f) * pow(dot(Reflect,ViewDir),SPECULARITY)) + \n"
        "#else\n"
            "SPECULAR_COLOR.rgb * SPECULAR_STRENGTH * afLightColor[1].rgb * (saturate(L1 * 4.0f) * pow(dot(Reflect,ViewDir),SPECULARITY)) + \n"
        "#endif // !AV_SPECULAR_TEXTURE\n"
        "#endif // !AV_SPECULAR_COMPONENT\n"
        "#ifdef AV_AMBIENT_TEXTURE\n"
            "AMBIENT_COLOR.rgb * afLightColorAmbient[1].rgb * tex2D(AMBIENT_SAMPLER,IN.TexCoord0).rgb +\n"
        "#else\n"
            "AMBIENT_COLOR.rgb * afLightColorAmbient[1].rgb + \n"
        "#endif // !AV_AMBIENT_TEXTURE\n"
        "#ifdef AV_EMISSIVE_TEXTURE\n"
            "EMISSIVE_COLOR.rgb * tex2D(EMISSIVE_SAMPLER,IN.TexCoord0).rgb;\n"
        "#else \n"
            "EMISSIVE_COLOR.rgb;\n"
        "#endif // !AV_EMISSIVE_TEXTURE\n"
        "}\n"

        "#ifdef AV_OPACITY\n"
        "OUT.a = TRANSPARENCY;\n"
        "#endif\n"
        "#ifdef AV_OPACITY_TEXTURE\n"
        "OUT.a *= tex2D(OPACITY_SAMPLER,IN.TexCoord0). AV_OPACITY_TEXTURE_REGISTER_MASK;\n"
        "#endif\n"
        "return OUT;\n"
    "}\n"


    // Technique for the material effect
    "technique MaterialFXSpecular_D1\n"
    "{\n"
        "pass p0\n"
        "{\n"
            "#ifdef AV_OPACITY_TEXTURE\n"
            "AlphaBlendEnable=TRUE;"
            "SrcBlend = srcalpha;\n"
            "DestBlend = invsrcalpha;\n"
            "#else\n"
            "#ifdef AV_OPACITY\n"
            "AlphaBlendEnable=TRUE;"
            "SrcBlend = srcalpha;\n"
            "DestBlend = invsrcalpha;\n"
            "#endif \n"
            "#endif\n"

            "PixelShader = compile ps_3_0 MaterialPShaderSpecular_D1();\n"
            "VertexShader = compile vs_3_0 MaterialVShader_D1();\n"
        "}\n"
    "};\n"
    "technique MaterialFXSpecular_D2\n"
    "{\n"
        "pass p0\n"
        "{\n"
            "#ifdef AV_OPACITY_TEXTURE\n"
            "AlphaBlendEnable=TRUE;"
            "SrcBlend = srcalpha;\n"
            "DestBlend = invsrcalpha;\n"
            "#else\n"
            "#ifdef AV_OPACITY\n"
            "AlphaBlendEnable=TRUE;"
            "SrcBlend = srcalpha;\n"
            "DestBlend = invsrcalpha;\n"
            "#endif \n"
            "#endif\n"

            "PixelShader = compile ps_3_0 MaterialPShaderSpecular_D2();\n"
            "VertexShader = compile vs_3_0 MaterialVShader_D2();\n"
        "}\n"
    "};\n"

    // Technique for the material effect (ps_2_0)
    "technique MaterialFXSpecular_PS20_D1\n"
    "{\n"
        "pass p0\n"
    "{\n"
          "#ifdef AV_OPACITY_TEXTURE\n"
          "AlphaBlendEnable=TRUE;"
          "SrcBlend = srcalpha;\n"
          "DestBlend = invsrcalpha;\n"
          "#else\n"
          "#ifdef AV_OPACITY\n"
          "AlphaBlendEnable=TRUE;"
          "SrcBlend = srcalpha;\n"
          "DestBlend = invsrcalpha;\n"
          "#endif \n"
          "#endif\n"

          "PixelShader = compile ps_2_0 MaterialPShaderSpecular_PS20_D1();\n"
          "VertexShader = compile vs_2_0 MaterialVShader_D1();\n"
        "}\n"
    "};\n"

    "technique MaterialFXSpecular_PS20_D2\n"
    "{\n"
        "pass p0\n"
      "{\n"
          "//CullMode=none;\n"

          "#ifdef AV_OPACITY_TEXTURE\n"
          "AlphaBlendEnable=TRUE;"
          "SrcBlend = srcalpha;\n"
          "DestBlend = invsrcalpha;\n"
          "#else\n"
          "#ifdef AV_OPACITY\n"
          "AlphaBlendEnable=TRUE;"
          "SrcBlend = srcalpha;\n"
          "DestBlend = invsrcalpha;\n"
          "#endif \n"
          "#endif\n"

          "PixelShader = compile ps_2_0 MaterialPShaderSpecular_PS20_D2();\n"
          "VertexShader = compile vs_2_0 MaterialVShader_D2();\n"
        "}\n"
    "};\n"

    // Technique for the material effect using fixed function pixel pipeline
    "technique MaterialFX_FF\n"
    "{\n"
        "pass p0\n"
        "{\n"
            "//CullMode=none;\n"
            "SpecularEnable = true; \n"
            "VertexShader = compile vs_2_0 MaterialVShader_FF();\n"
            "ColorOp[0] = Modulate;\n"
            "ColorArg0[0] = Texture;\n"
            "ColorArg1[0] = Diffuse;\n"
            "AlphaOp[0] = Modulate;\n"
            "AlphaArg0[0] = Texture;\n"
            "AlphaArg1[0] = Diffuse;\n"
        "}\n"
    "};\n"
    );

std::string g_szPassThroughShader = std::string(
        "texture TEXTURE_2D;\n"
        "sampler TEXTURE_SAMPLER = sampler_state\n"
        "{\n"
            "Texture = (TEXTURE_2D);\n"
            "MinFilter = POINT;\n"
            "MagFilter = POINT;\n"
        "};\n"

    // Vertex Shader output for pixel shader usage
        "struct VS_OUTPUT\n"
        "{\n"
            "float4 Position : POSITION;\n"
            "float2 TexCoord0 : TEXCOORD0;\n"
        "};\n"

    // vertex shader for pixel shader usage
        "VS_OUTPUT DefaultVShader(float4 INPosition : POSITION, float2 INTexCoord0 : TEXCOORD0 )\n"
        "{\n"
            "VS_OUTPUT Out;\n"

            "Out.Position = INPosition;\n"
            "Out.TexCoord0 = INTexCoord0;\n"

            "return Out;\n"
        "}\n"

        // simply lookup a texture
        "float4 PassThrough_PS(float2 IN : TEXCOORD0) : COLOR\n"
        "{\n"
        "  return tex2D(TEXTURE_SAMPLER,IN);\n"
        "}\n"

        // visualize the alpha channel (in black) -> use a
        "float4 PassThroughAlphaA_PS(float2 IN : TEXCOORD0) : COLOR\n"
        "{\n"
        "  return float4(0.0f,0.0f,0.0f,tex2D(TEXTURE_SAMPLER,IN).a);\n"
        "}\n"

        // visualize the alpha channel (in black) -> use r
        "float4 PassThroughAlphaR_PS(float2 IN : TEXCOORD0) : COLOR\n"
        "{\n"
        "  return float4(0.0f,0.0f,0.0f,tex2D(TEXTURE_SAMPLER,IN).r);\n"
        "}\n"

        // Simple pass-through technique
        "technique PassThrough\n"
        "{\n"
            "pass p0\n"
            "{\n"
                "FillMode=Solid;\n"
                "ZEnable = FALSE;\n"
                "CullMode = none;\n"
                "AlphaBlendEnable = TRUE;\n"
                "SrcBlend =srcalpha;\n"
                "DestBlend =invsrcalpha;\n"
                "PixelShader = compile ps_2_0 PassThrough_PS();\n"
                "VertexShader = compile vs_2_0 DefaultVShader();\n"
            "}\n"
        "};\n"

        // Pass-through technique which visualizes the texture's alpha channel
        "technique PassThroughAlphaFromA\n"
        "{\n"
            "pass p0\n"
            "{\n"
                "FillMode=Solid;\n"
                "ZEnable = FALSE;\n"
                "CullMode = none;\n"
                "AlphaBlendEnable = TRUE;\n"
                "SrcBlend =srcalpha;\n"
                "DestBlend =invsrcalpha;\n"
                "PixelShader = compile ps_2_0 PassThroughAlphaA_PS();\n"
                "VertexShader = compile vs_2_0 DefaultVShader();\n"
            "}\n"
        "};\n"

        // Pass-through technique which visualizes the texture's red channel
        "technique PassThroughAlphaFromR\n"
        "{\n"
            "pass p0\n"
            "{\n"
                "FillMode=Solid;\n"
                "ZEnable = FALSE;\n"
                "CullMode = none;\n"
                "AlphaBlendEnable = TRUE;\n"
                "SrcBlend =srcalpha;\n"
                "DestBlend =invsrcalpha;\n"
                "PixelShader = compile ps_2_0 PassThroughAlphaR_PS();\n"
                "VertexShader = compile vs_2_0 DefaultVShader();\n"
            "}\n"
        "};\n"

        // technique for fixed function pixel pipeline
        "technique PassThrough_FF\n"
        "{\n"
            "pass p0\n"
            "{\n"
                "ZEnable = FALSE;\n"
                "CullMode = none;\n"
                "AlphaBlendEnable = TRUE;\n"
                "SrcBlend =srcalpha;\n"
                "DestBlend =invsrcalpha;\n"
                "VertexShader = compile vs_2_0 DefaultVShader();\n"
        "ColorOp[0] = SelectArg1;\n"
        "ColorArg0[0] = Texture;\n"
        "AlphaOp[0] = SelectArg1;\n"
        "AlphaArg0[0] = Texture;\n"
            "}\n"
        "};\n"
    );

std::string g_szCheckerBackgroundShader = std::string(

        // the two colors used to draw the checker pattern
        "float3 COLOR_ONE = float3(0.4f,0.4f,0.4f);\n"
        "float3 COLOR_TWO = float3(0.6f,0.6f,0.6f);\n"

        // size of a square in both x and y direction
        "float SQUARE_SIZE = 10.0f;\n"

    // vertex shader output structure
        "struct VS_OUTPUT\n"
        "{\n"
            "float4 Position : POSITION;\n"	
        "};\n"

    // vertex shader 
        "VS_OUTPUT DefaultVShader(float4 INPosition : POSITION, float2 INTexCoord0 : TEXCOORD0 )\n"
        "{\n"
            "VS_OUTPUT Out;\n"

            "Out.Position = INPosition;\n"
            "return Out;\n"
        "}\n"

        // pixel shader
        "float4 MakePattern_PS(float2 IN : VPOS) : COLOR\n"
        "{\n"
          "float2 fDiv = IN / SQUARE_SIZE;\n"
          "float3 fColor = COLOR_ONE;\n"
          "if (0 == round(fmod(round(fDiv.x),2)))\n"
          "{\n"
          "  if (0 == round(fmod(round(fDiv.y),2))) fColor = COLOR_TWO;\n"
          "}\n"
          "else if (0 != round(fmod(round(fDiv.y),2)))fColor = COLOR_TWO;\n"
          "return float4(fColor,1.0f);"
        "}\n"
    
        // technique to generate a pattern
        "technique MakePattern\n"
        "{\n"
          "pass p0\n"
          "{\n"
            "FillMode=Solid;\n"
            "ZEnable = FALSE;\n"
            "CullMode = none;\n"
            "PixelShader = compile ps_3_0 MakePattern_PS();\n"
            "VertexShader = compile vs_3_0 DefaultVShader();\n"
          "}\n"
        "};\n"
        );
    };