PlumberUltimateAds/Assets/2DxFX/Resources/2dxfx_AL/_2dxFX_AL_Pixel8bitsC64.shader

//////////////////////////////////////////////
/// 2DxFX - 2D SPRITE FX - by VETASOFT 2016 //
/// http://unity3D.vetasoft.com/            //
//////////////////////////////////////////////

Shader "2DxFX/AL/Pixel8bitsC64"
{
	Properties
	{
		[PerRendererData] _MainTex("Sprite Texture", 2D) = "white" {}
	_Color("_Color", Color) = (1,1,1,1)
		_Size("Size", Range(0,1)) = 0
		_Offset("Offset", Range(0,1)) = 0
		_Offset2("Offset2", Range(0,1)) = 0
		_Alpha("Alpha", Range(0,1)) = 1.0
		[HideInInspector]_SrcBlend("_SrcBlend", Float) = 0
		[HideInInspector]_DstBlend("_DstBlend", Float) = 0
		[HideInInspector]_BlendOp("_BlendOp",Float) = 0
		[HideInInspector]_Z("_Z", Float) = 0
	}

		SubShader
	{
		Tags
	{
		"IgnoreProjector" = "True"
		"RenderType" = "TransparentCutout"
		"PreviewType" = "Plane"
		"CanUseSpriteAtlas" = "True"
	}
		Cull Off
		Lighting Off
		ZWrite[_Z]
		BlendOp[_BlendOp]
		Blend[_SrcBlend][_DstBlend]

		CGPROGRAM
#pragma surface surf Lambert vertex:vert nofog keepalpha addshadow fullforwardshadows
#pragma target 3.0

		sampler2D _MainTex;
	float4 _Color;
	float _Size;
	float _Offset;
	float _Offset2;
	float _Alpha;
	struct Input
	{
		float2 uv_MainTex;
		float4 color;
	};

	void vert(inout appdata_full v, out Input o)
	{
		v.vertex = UnityPixelSnap(v.vertex);
		UNITY_INITIALIZE_OUTPUT(Input, o);
		o.color = v.color * _Color;
	}

	float compare(float3 a, float3 b)
	{
		a = a*a*a;
		b = b*b*b;
		float3 diff = (a - b);
		return dot(diff, diff);
	}

	inline float mod(float x,float modu)
	{
		return x - floor(x * (1.0 / modu)) * modu;
	}
	void surf(Input IN, inout SurfaceOutput o)
	{

		float2 q = IN.uv_MainTex;
		float2 pixelSize = 64 * _Size;
		pixelSize.x /= 3 * _Offset;
		float2 c = floor(q * pixelSize) / pixelSize;

		float4 src4 = tex2D(_MainTex, c)* IN.color;
		float3 src = src4.rgb*_Offset2;
		float alpha = src4.a;
		if (alpha<0.95) alpha = 0;

		src *= _Offset2;

		float3 dst0 = float3(0,0,0);
		float3 dst1 = float3(0,0,0);
		float best0 = 1e3;
		float best1 = 1e3;

#define TCOLOR(R, G, B) { const float3 tst = float3(R, G, B); float err = compare(src, tst); if (err < best0) { best1 = best0; dst1 = dst0; best0 = err; dst0 = tst; } }
		TCOLOR(0.,0.,0.);
		TCOLOR(1.,1.,1.);
		TCOLOR(0.62890625,0.30078125,0.26171875);
		TCOLOR(0.4140625,0.75390625,0.78125);
		TCOLOR(0.6328125,0.33984375,0.64453125);
		TCOLOR(0.359375,0.67578125,0.37109375);
		TCOLOR(0.30859375,0.265625,0.609375);
		TCOLOR(0.79296875,0.8359375,0.53515625);
		TCOLOR(0.63671875,0.40625,0.2265625);
		TCOLOR(0.4296875,0.32421875,0.04296875);
		TCOLOR(0.796875,0.49609375,0.4609375);
		TCOLOR(0.38671875,0.38671875,0.38671875);
		TCOLOR(0.54296875,0.54296875,0.54296875);
		TCOLOR(0.60546875,0.88671875,0.61328125);
		TCOLOR(0.5390625,0.49609375,0.80078125);
		TCOLOR(0.68359375,0.68359375,0.68359375);
#undef TCOLOR

		best0 = sqrt(best0); best1 = sqrt(best1);
		float4 r = float4(mod(c.x + c.y, 2.0) > (1 + best1 / (best0 + best1)) ? dst1 : dst0, 1.0);
		r.a = r.a*alpha*(1 - _Alpha);


		o.Albedo =r.rgb * r.a;
		o.Alpha = r.a;

		clip(o.Alpha - 0.05);
	}
	ENDCG
	}

		Fallback "Sprites/Default"
}