TinyPixelPerfect Shader

Shader "Custom/TinyPixelPerfect"
{
	Properties
	{
		[HideInInspector] _MainTex("Texture", 2D) = "white" {}
	}

	SubShader
	{
		Cull Off
		ZWrite Off
		ZTest Always

	Pass
	{
		CGPROGRAM
		#include "UnityCG.cginc"
		#pragma vertex vert
		#pragma fragment frag

		uniform sampler2D _MainTex;
		float x;
		float y;

	struct appdata
	{
		float4 vertex : POSITION;
		float2 uv : TEXCOORD0;
	};

	struct v2f
	{
		float4 position : SV_POSITION;
		float2 uv : TEXCOORD0;
	};

	v2f vert(appdata v)
	{
		v2f o;
		o.position = UnityObjectToClipPos(v.vertex);
		o.uv = v.uv;
		return o;
	}

	fixed4 frag(v2f i) : SV_TARGET
	{
		fixed4 col = tex2D(_MainTex, i.uv);
		//return 1 - col;

		float2 g = float2(floor(i.uv.x * x) / x,floor(i.uv.y * y) / y);
		float3 c = tex2D(_MainTex, g);

		return float4(c.rgb, 1.0);
	}

	ENDCG
}
	}
}