Shader "Hidden/Stix Games/Grass Fallback Renderer" 
 {
    Properties 
	{
		_CullMode("CullMode", int) = 0

		[PowerSlider(3.0)] _TargetDensity("Target Density", Range(0.01,1)) = 0.2
		_DensityFalloffStart("Density Falloff Start", Float) = 5
		_DensityFalloffScale("Density Falloff Scale", Range(0, 3)) = 0.25
		_DensityFalloffPower("Density Falloff Power", Range(0, 3)) = 1.3

		_LODStart("LOD Start", float) = 20
		_LODEnd("LOD End", float) = 100
		[IntRange] _LODMax("LOD Max", Range(1,6)) = 6

		_GrassFadeStart("Grass Fade Start", float) = 50
		_GrassFadeEnd("Grass Fade End", float) = 100

		_Disorder("Disorder", float) = 0.3

		_GrassFloorColor("Grass Floor Color", Color) = (0.35, 0.35, 0.35, 1)
		_GrassFloorColorTexture("Grass Floor Color Texture", 2D) = "white" {}
		_FloorColorStrength("Grass Floor Color Strength", Range(0, 1)) = 1
		[PowerSlider(8.0)] _FloorColorPower("Grass Floor Color Power", Range(0.1, 100)) = 2
		_FloorColorOffset("Grass Floor Color Offset", Range(-1, 1)) = 0

		_BurnCutoff("Burn Cutoff", Range(0, 1)) = 0.05

		_TextureCutoff("Texture Cutoff", Range(0, 1)) = 0.1

		_WindParams("Wind WaveStrength(X), WaveSpeed(Y), RippleStrength(Z), RippleSpeed(W)", Vector) = (0.3, 1.2, 0.15, 1.3)
		_WindRotation("Wind Rotation", Range(0, 6.28318530718)) = 0

		_ColorMap("Color Texture (RGB), Height(A)", 2D) = "white" {}
		_Displacement("Displacement Texture (RG)", 2D) = "bump" {}
		_DensityTexture("Grass Density 1(R) 2(G) 3(B) 4(A)", 2D) = "red" {}
		_DensityValues("Grass Density Values", Vector) = (1, 1, 1, 1)

		_GrassTex00("Grass Texture", 2D) = "white" {}
		_Color00("Color", Color) = (0.5, 0.7, 0.3, 1)
		_SecColor00("Secondary Color", Color) = (0.2, 0.5, 0.15, 1)
		_SpecColor00("Specular Color", Color) = (0.2, 0.2, 0.2, 1)
		_Smoothness00("Smoothness", Range(0,1)) = 0.5
		_Subsurface00("Subsurface Scattering", Range(0,1)) = 0.3
		_Softness00("Softness", Range(0,1)) = 0.5
		_Width00("Width", float) = 0.1
		_MinHeight00("Min Height", float) = 0.2
		_MaxHeight00("Max Height", float) = 1.5
		_TextureAtlasWidth00("Texture Atlas Width", int) = 1
		_TextureAtlasHeight00("Texture Atlas Height", int) = 1
		_AtlasOffset00("Padding to prevent color leakage", Range(0, 0.5)) = 0.01

		_GrassTex01("Grass Texture", 2D) = "white" {}
		_Color01("Color", Color) = (0.5, 0.7, 0.3, 1)
		_SecColor01("Secondary Color", Color) = (0.2, 0.5, 0.15, 1)
		_SpecColor01("Specular Color", Color) = (0.2, 0.2, 0.2, 1)
		_Smoothness01("Smoothness", Range(0,1)) = 0.5
		_Subsurface01("Subsurface Scattering", Range(0,1)) = 0.3
		_Softness01("Softness", Range(0,1)) = 0.5
		_Width01("Width", float) = 0.1
		_MinHeight01("Min Height", float) = 0.2
		_MaxHeight01("Max Height", float) = 1.5
		_TextureAtlasWidth01("Texture Atlas Width", int) = 1
		_TextureAtlasHeight01("Texture Atlas Height", int) = 1
		_AtlasOffset01("Padding to prevent color leakage", Range(0, 0.5)) = 0.01

		_GrassTex02("Grass Texture", 2D) = "white" {}
		_Color02("Color", Color) = (0.5, 0.7, 0.3, 1)
		_SecColor02("Secondary Color", Color) = (0.2, 0.5, 0.15, 1)
		_SpecColor02("Specular Color", Color) = (0.2, 0.2, 0.2, 1)
		_Smoothness02("Smoothness", Range(0,1)) = 0.5
		_Subsurface02("Subsurface Scattering", Range(0,1)) = 0.3
		_Softness02("Softness", Range(0,1)) = 0.5
		_Width02("Width", float) = 0.1
		_MinHeight02("Min Height", float) = 0.2
		_MaxHeight02("Max Height", float) = 1.5
		_TextureAtlasWidth02("Texture Atlas Width", int) = 1
		_TextureAtlasHeight02("Texture Atlas Height", int) = 1
		_AtlasOffset02("Padding to prevent color leakage", Range(0, 0.5)) = 0.01

		_GrassTex03("Grass Texture", 2D) = "white" {}
		_Color03("Color", Color) = (0.5, 0.7, 0.3, 1)
		_SecColor03("Secondary Color", Color) = (0.2, 0.5, 0.15, 1)
		_SpecColor03("Specular Color", Color) = (0.2, 0.2, 0.2, 1)
		_Smoothness03("Smoothness", Range(0,1)) = 0.5
		_Subsurface03("Subsurface Scattering", Range(0,1)) = 0.3
		_Softness03("Softness", Range(0,1)) = 0.5
		_Width03("Width", float) = 0.1
		_MinHeight03("Min Height", float) = 0.2
		_MaxHeight03("Max Height", float) = 1.5
		_TextureAtlasWidth03("Texture Atlas Width", int) = 1
		_TextureAtlasHeight03("Texture Atlas Height", int) = 1
		_AtlasOffset03("Padding to prevent color leakage", Range(0, 0.5)) = 0.01
    }

	SubShader
	{
		Tags{ "Queue" = "AlphaTest" "RenderType" = "StixGamesGrass" }
		LOD 1000

		Pass 
		{
			ColorMask RGBA
			Cull Front//[_CullMode]

			CGPROGRAM
			#define GRASS_FALLBACK_RENDERER
			
			#pragma target 4.6

			#pragma vertex vert
			#pragma hull hullShader
			#pragma domain domainShader
			#pragma geometry geom
			#pragma fragment frag

			// ================= Shader_feature block start =================
			#pragma shader_feature SIMPLE_GRASS ONE_GRASS_TYPE TWO_GRASS_TYPES THREE_GRASS_TYPES FOUR_GRASS_TYPES
			#pragma shader_feature GRASS_UNLIT_LIGHTING GRASS_UNSHADED_LIGHTING GRASS_PBR_INVERTED_LIGHTING GRASS_PBR_LIGHTING
			#pragma shader_feature GRASS_REGULAR_NORMAL_LIGHTING GRASS_HYBRID_NORMAL_LIGHTING GRASS_SURFACE_NORMAL_LIGHTING
			#pragma shader_feature __ UNIFORM_DENSITY VERTEX_DENSITY
			#pragma shader_feature __ GRASS_HEIGHT_SMOOTHING
			#pragma shader_feature __ GRASS_WIDTH_SMOOTHING
			#pragma shader_feature __ GRASS_ALPHA_SMOOTHING
			#pragma shader_feature __ GRASS_OBJECT_MODE
			#pragma shader_feature __ GRASS_TOP_VIEW_COMPENSATION
			#pragma shader_feature __ GRASS_FOLLOW_SURFACE_NORMAL
			#pragma shader_feature __ GRASS_USE_TEXTURE_ATLAS
			#pragma shader_feature __ GRASS_IGNORE_GI_SPECULAR
			#pragma shader_feature __ GRASS_RANDOM_DIR
			#pragma shader_feature __ GRASS_CALC_GLOBAL_WIND
			//#pragma multi_compile  __ GRASS_RENDERTEXTURE_INTERACTION
			// ================= Shader_feature block end  =================
			
			

			#include "GrassIncludes.hlsl"

			ENDCG
		}
	}

	CustomEditor "GrassEditor"
}