Shader "Hidden/TerrainEngine/Details/WavingDoublePass" {
Properties {
	_WavingTint ("Fade Color", Color) = (.7,.6,.5, 0)
	_MainTex ("Base (RGB) Alpha (A)", 2D) = "white" {}
	_WaveAndDistance ("Wave and distance", Vector) = (12, 3.6, 1, 1)
	_Cutoff ("Cutoff", float) = 0.5
}

SubShader {
	Tags {
		"Queue" = "Geometry"		
		"IgnoreProjector"="True"
		"RenderType"="Grass"
	}
	Cull Off
	LOD 200
		
CGPROGRAM
#pragma surface surf Lambert vertex:WavingGrassVert2 addshadow halfasview noforwardadd interpolateview novertexlights
#include "TerrainEngine.cginc"

sampler2D _MainTex;
fixed _Cutoff;

struct Input {
	float2 uv_MainTex;
	fixed4 color : COLOR;
};

void WavingGrassVert2 (inout appdata_full v)
{
	// MeshGrass v.color.a: 1 on top vertices, 0 on bottom vertices
	// _WaveAndDistance.z == 0 for MeshLit
	v.color.a = v.color.r;
	float waveAmount = v.color.a * _WaveAndDistance.z;
	v.color = TerrainWaveGrass (v.vertex, waveAmount, v.color);
}


void surf (Input IN, inout SurfaceOutput o) {

	
	fixed4 c = tex2D(_MainTex, IN.uv_MainTex) * (IN.color + 0.7);
	
	o.Albedo = c.rgb;
	o.Alpha = c.a;
	
	clip (o.Alpha - _Cutoff);
	o.Alpha *= IN.color.a;
}
ENDCG
}
	
	
	
	Fallback Off
}