CelShadingSpriteShadowsOnShader

Shader "Sprites/CelShadingShadowsOnSpriteShader"
{
	Properties
	{
		[PerRendererData] _MainTex("Sprite Texture", 2D) = "white" {}
		_NormalsTex("Sprite Normals", 2D) = "bump" {}
		_CelRamp("Cel shading ramp", 2D) = "white" {}
		_Color("Tint", Color) = (1,1,1,1)
		[MaterialToggle] PixelSnap("Pixel snap", Float) = 0
	}

		SubShader
	{
		Tags
	{
			"Queue" = "Geometry"
			"RenderType" = "Opaque"
			"IgnoreProjector" = "False"
			"PreviewType" = "Plane"
			"CanUseSpriteAtlas" = "True"
	}

	Cull Off
	Lighting On
	ZWrite Off
	Fog{ Mode Off }
	Blend SrcAlpha OneMinusSrcAlpha

	CGPROGRAM
	#pragma surface surf CustomLambert vertex:vert addshadow fullforwardshadows
	#pragma multi_compile DUMMY PIXELSNAP_ON

	sampler2D _MainTex;
	sampler2D _NormalsTex;
	sampler2D _CelRamp;
	fixed4 _Color;

	struct Input
	{
		float2 uv_MainTex;
		fixed4 color;
	};

	half4 LightingCustomLambert(SurfaceOutput s, half3 lightDir, half3 viewDir, half atten) {
		half NdotL = dot(s.Normal, lightDir);
		half4 c;
		c.rgb = (s.Albedo * _LightColor0.rgb * (tex2D(_CelRamp, half2 (NdotL * 0.5 + 0.5, 0)))) * (atten * 2);
		c.a = s.Alpha;
		return c;
	}

	void vert(inout appdata_full v, out Input o)
	{
		#if defined(PIXELSNAP_ON) && !defined(SHADER_API_FLASH)
				v.vertex = UnityPixelSnap(v.vertex);
		#endif
		v.normal = float3(0,0,-1);
		v.tangent = float4(-1, 0, 0, 1);

		UNITY_INITIALIZE_OUTPUT(Input, o);
		o.color = _Color * v.color;
	}

	void surf(Input IN, inout SurfaceOutput o)
	{
		fixed4 c = tex2D(_MainTex, IN.uv_MainTex) * IN.color;
		o.Albedo = c.rgb;
		o.Normal = UnpackNormal(tex2D(_NormalsTex, IN.uv_MainTex));
		o.Alpha = c.a;
	}
	ENDCG
	}

	Fallback "Transparent/VertexLit"
}