Shader "Unlit/PP/PSTexturaEscalable"
{

	Properties{
		_MainTex("Base (RGB)", 2D) = "" {}

		_SubTex("Base (RGB)", 2D) = "" {}

		_LerpTex("Lerp", 2D) = "" {}

		_Color("Colorfijo", Color) = (1.0, 0.0, 0.0)
	}

		SubShader
		{
			Pass
			{
				CGPROGRAM

				#pragma vertex vsMain
				#pragma fragment psMain

				#include "UnityCG.cginc"

				sampler2D _MainTex;
				float4 _MainTex_ST;

				sampler2D _SubTex;
				float4 _SubTex_ST;

				sampler2D _LerpTex;
				float4 _LerpTex_ST;

				float4 _Color;

				struct VsIn {
					float4 vertex : POSITION;
					float2 texcoord : TEXCOORD0;
				};

				struct VsOut {
					float4 pos : SV_POSITION;
					float2 uv : TEXCOORD0;
					float2 uv1 : TEXCOORD1;
					float2 uv2 : TEXCOORD2;
				};

				VsOut vsMain(appdata_base v) {
					VsOut o;
					o.pos = UnityObjectToClipPos(v.vertex);
					o.uv = TRANSFORM_TEX(v.texcoord, _MainTex);
					o.uv1 = TRANSFORM_TEX(v.texcoord, _SubTex);
					o.uv2 = TRANSFORM_TEX(v.texcoord, _LerpTex);
					return o;
				};

				float4 psMain(VsOut i) : COLOR {
					return lerp(tex2D(_MainTex, i.uv), tex2D(_SubTex, i.uv1), tex2D(_LerpTex, i.uv2).a);
				}

				ENDCG




			}
		}
}