I went digging. I put this thing together but it returns an error on startup. It says "ErrorX3004: Undeclared identifier in 'VS_Main'"

Code:

---

bmap tstonemap = <ts3tone.tga>;

material toon

{

	skin1 = tstonemap;

	effect

	"

		float4x4 matWorldViewProj;

		float4x4 matWorld;

		float4 vecSunDir;

		Texture entSkin1;

		Texture mtlSkin1;



		struct VS_INPUT

		{

			float4 position : POSITION;

			float2 TexCoords: TEXCOORD0;

			float3 normal   : NORMAL;

		};



		struct VS_OUTPUT

		{

			float4 position : POSITION;

			float2 uvCoords: TEXCOORD0;

			float2 TexCoords: TEXCOORD1;

			float4 diffuse  : COLOR;

		};



		VS_OUTPUT VS_Main(VS_INPUT input)

		{

			//zero out the struct members

			VS_OUTPUT output = (VS_OUTPUT)0;

	

			//transform vertex pos to clip space

			output.position = mul(input.position, matWorldViewProj );

			output.TexCoords= input.TexCoords;

			float4 LightDir = mul(matWorld,-vecSunDir);

			float diffuse = max(0,dot(LightDir,input.normal ));

			output.uvCoords.x = diffuse;

			output.uvCoords.y = 0.0f;

			return output;

		}



                technique lightMapping

		{

   		   pass SingleLight

   		   {

				//globals

				zwriteenable= true;

				zenable = true;

				//Stage variables

				Texture[0]=<mtlSkin1>;

				ColorOp[0]=Modulate;

				ColorArg1[0]=Texture;

				ColorArg2[0]=Texture;

				AddressU[0]=Clamp;

				AddressV[0]=Clamp;

				AddressW[0]=Clamp;

				Texture[1]=<entSkin1>;

				ColorOp[1]=Modulate;

				ColorArg1[1]=Texture;

				ColorArg2[1]=Current;

				//shaders

				VertexShader = compile vs_1_0 VS_Main();

		   }

		}



		technique fallback // empty fallback causes normal rendering 

		{ 

			pass p0 { } 

		}

	"; // end of effect 

} 

---