metaverse_artist/Lux URP Essentials/Shaders/Terrain/Lux URP Terrain.shader

Shader "Lux URP/Terrain/Lit"
{
    Properties
    {
        [HeaderHelpLuxURP_URL(tbg083mgl1iw)]
        
    //  Lux specific properties
        [Toggle(_NORMALMAP)]
        _EnableNormalMap                        ("Enable Normal Map", Float) = 0.0

        [Space(5)]
        [Toggle(_TERRAIN_BLEND_HEIGHT)]
        _EnableHeightBlend                      ("Enable Height Blend", Float) = 0.0
        [NoScaleOffset] _HeightMaps             ("     Height Maps (RGBA)", 2D) = "grey" {}
        _HeightTransition                       ("     Height Transition", Range(0, 1.0)) = 0.0

        [Toggle(_PARALLAX)]
        _EnableParallax                         ("     Enable Parallax", Float) = 0.0
        _Parallax                               ("          Parallax", Range(0.0, 0.1)) = 0.001

        [Toggle(_PROCEDURALTEXTURING)]
        _EnableProcedural                       ("Enable Procedural Texturing", Float) = 0.0
        _ProceduralBlend                        ("     Blend", Range(0.0, 1.0)) = 0.6
        _ProceduralScale                        ("     Scale", Range(0.5, 1.5)) = 1
        _ProceduralTiling                       ("     Size in World Space", Float) = 5

        // Layer count is passed down to guide height-blend enable/disable, due
        // to the fact that heigh-based blend will be broken with multipass.
        [HideInInspector] [PerRendererData] _NumLayersCount ("Total Layer Count", Float) = 1.0
    
        // set by terrain engine
        [HideInInspector] _Control("Control (RGBA)", 2D) = "red" {}
        [HideInInspector] _Splat3("Layer 3 (A)", 2D) = "grey" {}
        [HideInInspector] _Splat2("Layer 2 (B)", 2D) = "grey" {}
        [HideInInspector] _Splat1("Layer 1 (G)", 2D) = "grey" {}
        [HideInInspector] _Splat0("Layer 0 (R)", 2D) = "grey" {}
        [HideInInspector] _Normal3("Normal 3 (A)", 2D) = "bump" {}
        [HideInInspector] _Normal2("Normal 2 (B)", 2D) = "bump" {}
        [HideInInspector] _Normal1("Normal 1 (G)", 2D) = "bump" {}
        [HideInInspector] _Normal0("Normal 0 (R)", 2D) = "bump" {}
        [HideInInspector] _Mask3("Mask 3 (A)", 2D) = "grey" {}
        [HideInInspector] _Mask2("Mask 2 (B)", 2D) = "grey" {}
        [HideInInspector] _Mask1("Mask 1 (G)", 2D) = "grey" {}
        [HideInInspector] _Mask0("Mask 0 (R)", 2D) = "grey" {}
        [HideInInspector][Gamma] _Metallic0("Metallic 0", Range(0.0, 1.0)) = 0.0
        [HideInInspector][Gamma] _Metallic1("Metallic 1", Range(0.0, 1.0)) = 0.0
        [HideInInspector][Gamma] _Metallic2("Metallic 2", Range(0.0, 1.0)) = 0.0
        [HideInInspector][Gamma] _Metallic3("Metallic 3", Range(0.0, 1.0)) = 0.0
        [HideInInspector] _Smoothness0("Smoothness 0", Range(0.0, 1.0)) = 0.5
        [HideInInspector] _Smoothness1("Smoothness 1", Range(0.0, 1.0)) = 0.5
        [HideInInspector] _Smoothness2("Smoothness 2", Range(0.0, 1.0)) = 0.5
        [HideInInspector] _Smoothness3("Smoothness 3", Range(0.0, 1.0)) = 0.5

        // used in fallback on old cards & base map
        [HideInInspector] _MainTex("BaseMap (RGB)", 2D) = "grey" {}
        [HideInInspector] _BaseColor("Main Color", Color) = (1,1,1,1)

        [Toggle(_TERRAIN_INSTANCED_PERPIXEL_NORMAL)]
        _EnableInstancedPerPixelNormal          ("Enable Instanced per-pixel normal", Float) = 1.0
    }

    SubShader
    {
        Tags { "Queue" = "Geometry-100" "RenderType" = "Opaque" "RenderPipeline" = "UniversalPipeline" "IgnoreProjector" = "False"}

        Pass
        {
            Name "ForwardLit"
            Tags { "LightMode" = "UniversalForward" }
            HLSLPROGRAM
            // Required to compile gles 2.0 with standard srp library
            #pragma prefer_hlslcc gles
            #pragma exclude_renderers d3d11_9x
            #pragma target 3.0

            #pragma vertex SplatmapVert
            #pragma fragment SplatmapFragment

            //#define _METALLICSPECGLOSSMAP 1
            #define _SMOOTHNESS_TEXTURE_ALBEDO_CHANNEL_A 1

            // -------------------------------------
            // Universal Pipeline keywords
            #pragma multi_compile _ _MAIN_LIGHT_SHADOWS
            #pragma multi_compile _ _MAIN_LIGHT_SHADOWS_CASCADE
            #pragma multi_compile _ _ADDITIONAL_LIGHTS_VERTEX _ADDITIONAL_LIGHTS
            #pragma multi_compile_fragment _ _ADDITIONAL_LIGHT_SHADOWS
            #pragma multi_compile_fragment _ _SHADOWS_SOFT
            #pragma multi_compile _ LIGHTMAP_SHADOW_MIXING
            #pragma multi_compile _ SHADOWS_SHADOWMASK
            #pragma multi_compile_fragment _ _SCREEN_SPACE_OCCLUSION

            #pragma multi_compile __ _ALPHATEST_ON

            // -------------------------------------
            // Unity defined keywords
            #pragma multi_compile _ DIRLIGHTMAP_COMBINED
            #pragma multi_compile _ LIGHTMAP_ON
            #pragma multi_compile_fog
            #pragma multi_compile_instancing
            #pragma instancing_options assumeuniformscaling nomatrices nolightprobe nolightmap

            #pragma shader_feature_local_fragment _TERRAIN_BLEND_HEIGHT
            #pragma shader_feature_local _NORMALMAP
            // #pragma shader_feature_local _MASKMAP            
            // Sample normal in pixel shader when doing instancing
            #pragma shader_feature_local _TERRAIN_INSTANCED_PERPIXEL_NORMAL

            #pragma shader_feature_local _PARALLAX
            #pragma shader_feature_local _PROCEDURALTEXTURING

            #include "Includes/TerrainLitInput.hlsl"
            #include "Includes/TerrainLitPasses.hlsl"
            ENDHLSL
        }

        Pass
        {
            Name "ShadowCaster"
            Tags{"LightMode" = "ShadowCaster"}

            ZWrite On
            ColorMask 0

            HLSLPROGRAM
            // Required to compile gles 2.0 with standard srp library
            #pragma prefer_hlslcc gles
            #pragma exclude_renderers d3d11_9x
            #pragma target 2.0

            #pragma vertex ShadowPassVertex
            #pragma fragment ShadowPassFragment

            #pragma multi_compile_instancing
            #pragma instancing_options assumeuniformscaling nomatrices nolightprobe nolightmap

            #pragma multi_compile __ _ALPHATEST_ON

            #include "Includes/TerrainLitInput.hlsl"
            #include "Includes/TerrainLitPasses.hlsl"
            ENDHLSL
        }

        Pass
        {
            Name "DepthOnly"
            Tags{"LightMode" = "DepthOnly"}

            ZWrite On
            ColorMask 0

            HLSLPROGRAM
            // Required to compile gles 2.0 with standard srp library
            #pragma prefer_hlslcc gles
            #pragma exclude_renderers d3d11_9x
            #pragma target 2.0

            #pragma vertex DepthOnlyVertex
            #pragma fragment DepthOnlyFragment

            #pragma multi_compile_instancing
            #pragma instancing_options assumeuniformscaling nomatrices nolightprobe nolightmap

            #pragma multi_compile __ _ALPHATEST_ON

            #include "Includes/TerrainLitInput.hlsl"
            #include "Includes/TerrainLitPasses.hlsl"
            ENDHLSL
        }

        // This pass is used when drawing to a _CameraNormalsTexture texture
        Pass
        {
            Name "DepthNormals"
            Tags{"LightMode" = "DepthNormals"}

            ZWrite On

            HLSLPROGRAM
            #pragma exclude_renderers d3d11_9x
            #pragma target 2.0

            #pragma vertex DepthNormalOnlyVertex
            #pragma fragment DepthNormalOnlyFragment

            #pragma shader_feature_local _NORMALMAP
            #pragma multi_compile_instancing
            #pragma instancing_options assumeuniformscaling nomatrices nolightprobe nolightmap

            #pragma multi_compile __ _ALPHATEST_ON

            #include "Includes/TerrainLitInput.hlsl"
            #include "Includes/TerrainLitPasses.hlsl"
            ENDHLSL
        }

        UsePass "Hidden/Nature/Terrain/Utilities/PICKING"
        UsePass "Hidden/Nature/Terrain/Utilities/SELECTION"
    }
    Dependency "AddPassShader" = "Hidden/Lux URP/Lit (Add Pass)"
    Dependency "BaseMapShader" = "Lux URP/Terrain/Lit (Base Pass)"
    Dependency "BaseMapGenShader" = "Hidden/Lux URP/Terrain/Lit (Basemap Gen)"
    Fallback "Hidden/InternalErrorShader"
}