#line 1 "loops-for-in.txt" 
float4 unity_LightColor[4];
float4 unity_LightPosition[4];
float4 unity_LightAtten[4];

float4x4 UNITY_MATRIX_MVP;
float4x4 UNITY_MATRIX_MV;
float4x4 UNITY_MATRIX_IT_MV;

struct appdata {
	float4 vertex : POSITION;
	float3 normal : NORMAL;
};

struct v2f {
	half4 pos : POSITION;
	half4 color : TEXCOORD0;
};

float3 ShadeMyVertexLights (float4 vertex, float3 normal)
{
	float3 viewpos = mul(UNITY_MATRIX_MV, vertex).xyz;
	float3 viewN = mul((float3x3) UNITY_MATRIX_IT_MV, normal);
	float3 lightColor = float3(0.0,0.0,0.0);
	
	for (int i = 0; i < 2; i++) {
		float3 toLight = unity_LightPosition[i].xyz - viewpos.xyz;
		float lengthSq = dot(toLight, toLight);
		float atten = 1.0 / (1.0 + lengthSq * unity_LightAtten[i].z);
		float diff = max (0, dot (viewN, normalize(toLight)));
		lightColor += unity_LightColor[i].rgb * (diff * atten);
	}
	return (lightColor * 2.0);
}

v2f main (appdata v)
{
	v2f o;
	o.pos = mul(UNITY_MATRIX_MVP, v.vertex);
	o.color = float4 (ShadeMyVertexLights(v.vertex, v.normal), 1.0);
	return o; 
}