Simple toon shader

#define IN_HLSL
#include "hlslStructs.h"
#include "shdrConsts.h"
//-----------------------------------------------------------------------------
// Structures                                                                  
//-----------------------------------------------------------------------------

struct ConnectData
{
   float4 hpos            : POSITION;
   float2 outTexCoord     : TEXCOORD0;
   float3 normal		  : TEXCOORD1;
   float3 outLightVec     : TEXCOORD2;


};


//-----------------------------------------------------------------------------
// Main                                                                        
//-----------------------------------------------------------------------------
ConnectData main( VertexIn_PNT IN,
                  uniform float4x4 modelview       : register(VC_WORLD_PROJ),
                  uniform float4x4 texMat          : register(VC_TEX_TRANS1),
                  uniform float4x4 objTrans        : register(VC_OBJ_TRANS),  
                  uniform float4   lightPos        : register(VC_LIGHT_POS1)
               
)
{
   ConnectData OUT;

   OUT.hpos = mul(modelview, IN.pos);
   
   float4 texCoordExtend = float4( IN.uv0, 0.0, 1.0 );
   OUT.outTexCoord = mul(texMat, texCoordExtend);
   
   float3 N = normalize(IN.normal);
   
   OUT.normal = N;
   OUT.outLightVec = normalize(lightPos.xyz - IN.pos.xyz);

   return OUT;
}

//-----------------------------------------------------------------------------
// Structures                                                                  
//-----------------------------------------------------------------------------
struct ConnectData
{
   float2 texCoord        : TEXCOORD0;
   float3 normal      : TEXCOORD1;
   float3 lightVec        : TEXCOORD2;

};


struct Fragout
{
   float4 col : COLOR0;
};


//-----------------------------------------------------------------------------
// Main                                                                        
//-----------------------------------------------------------------------------
Fragout main( ConnectData IN,
              uniform sampler2D diffuseMap      : register(S0)
)
{
    Fragout OUT;
    
    float4 diffuseColor =   tex2D(diffuseMap, IN.texCoord);
	
    float intensity;
    float4 toonMask;	

	intensity = dot(normalize(IN.lightVec.xyz) ,IN.normal.xyz);

	if (intensity > 0.95)
	toonMask = float4(1.0,1.0,1.0,1.0);
	else if (intensity > 0.75)
	toonMask = float4(0.75,0.75,0.75,1.0);
	else if (intensity > 0.50)
	toonMask = float4(0.5,0.5,0.5,1.0);
	else if (intensity > 0.25)
	toonMask = float4(0.25,0.25,0.25,1.0);
	else if (intensity > 0.1)
	toonMask = float4(0,0,0,1.0);

	OUT.col = diffuseColor * toonMask;

   return OUT;
}

new ShaderData( ToonShader )
{
   DXVertexShaderFile   = "shaders/toonshaderV.hlsl";
   DXPixelShaderFile    = "shaders/toonshaderP.hlsl";
   pixVersion = 2.0;
};

new CustomMaterial(toon_orc_dynamic)
    {
        mapTo = "player";
        texture[0] = "orc_toon";
        shader     = ToonShader;
        version    = 2.0;

    };

new CustomMaterial(toon_orc)
    {
        mapTo = "player";
        texture[0] = "orc_toon";
        shader     = ToonShader;
        dynamicLightingMaterial = toon_orc_dynamic;
        version    = 2.0;

    };