Shader "Universal Render Pipeline/Nature/SpeedTree8"
{
    Properties
    {
        _MainTex ("Base (RGB) Transparency (A)", 2D) = "white" {}
        _Color ("Color", Color) = (1,1,1,1)

        [Toggle(EFFECT_HUE_VARIATION)] _HueVariationKwToggle("Hue Variation", Float) = 0
        _HueVariationColor ("Hue Variation Color", Color) = (1.0,0.5,0.0,0.1)

        [Toggle(EFFECT_BUMP)] _NormalMapKwToggle("Normal Mapping", Float) = 0
        _BumpMap("Normal Map", 2D) = "bump" {}

        _ExtraTex ("Smoothness (R), Metallic (G), AO (B)", 2D) = "(0.5, 0.0, 1.0)" {}
        _Glossiness ("Smoothness", Range(0.0, 1.0)) = 0.5
        _Metallic ("Metallic", Range(0.0, 1.0)) = 0.0

        [Toggle(EFFECT_SUBSURFACE)] _SubsurfaceKwToggle("Subsurface", Float) = 0
        _SubsurfaceTex ("Subsurface (RGB)", 2D) = "white" {}
        _SubsurfaceColor ("Subsurface Color", Color) = (1,1,1,1)
        _SubsurfaceIndirect ("Subsurface Indirect", Range(0.0, 1.0)) = 0.25

        [Toggle(EFFECT_BILLBOARD)] _BillboardKwToggle("Billboard", Float) = 0
        _BillboardShadowFade ("Billboard Shadow Fade", Range(0.0, 1.0)) = 0.5

        [Enum(No,2,Yes,0)] _TwoSided ("Two Sided", Int) = 2 // enum matches cull mode
        [KeywordEnum(None,Fastest,Fast,Better,Best,Palm)] _WindQuality ("Wind Quality", Range(0,5)) = 0
    }

    SubShader
    {
        Tags
        {
            "Queue"="AlphaTest"
            "IgnoreProjector"="True"
            "RenderType"="TransparentCutout"
            "DisableBatching"="LODFading"
            "RenderPipeline" = "UniversalPipeline"
            "UniversalMaterialType" = "Lit"
        }
        LOD 400
        Cull [_TwoSided]

        Pass
        {
            Name "ForwardLit"
            Tags { "LightMode" = "UniversalForward" }

            AlphaToMask On

            HLSLPROGRAM

            #pragma vertex SpeedTree8Vert
            #pragma fragment SpeedTree8Frag

            #pragma multi_compile _ _MAIN_LIGHT_SHADOWS _MAIN_LIGHT_SHADOWS_CASCADE _MAIN_LIGHT_SHADOWS_SCREEN
            #pragma multi_compile _ _ADDITIONAL_LIGHTS_VERTEX _ADDITIONAL_LIGHTS
            #pragma multi_compile _ _LIGHT_LAYERS
            #pragma multi_compile _ _FORWARD_PLUS
            #pragma multi_compile_vertex LOD_FADE_PERCENTAGE
            #pragma multi_compile_fragment _ _ADDITIONAL_LIGHT_SHADOWS
            #pragma multi_compile_fragment _ _REFLECTION_PROBE_BLENDING
            #pragma multi_compile_fragment _ _REFLECTION_PROBE_BOX_PROJECTION
            #pragma multi_compile_fragment _ _SHADOWS_SOFT _SHADOWS_SOFT_LOW _SHADOWS_SOFT_MEDIUM _SHADOWS_SOFT_HIGH
            #pragma multi_compile _ LOD_FADE_CROSSFADE
            #pragma multi_compile_fragment _ _SCREEN_SPACE_OCCLUSION
            #pragma multi_compile_fragment _ _LIGHT_COOKIES
            #pragma multi_compile _ EVALUATE_SH_MIXED EVALUATE_SH_VERTEX
            #include_with_pragmas "Packages/com.unity.render-pipelines.core/ShaderLibrary/FoveatedRenderingKeywords.hlsl"
            #include_with_pragmas "Packages/com.unity.render-pipelines.universal/ShaderLibrary/ProbeVolumeVariants.hlsl"

            #pragma multi_compile_fog
            #pragma multi_compile_fragment _ DEBUG_DISPLAY

            #pragma multi_compile_instancing
            #pragma instancing_options renderinglayer assumeuniformscaling maxcount:50

            #pragma shader_feature_local_vertex _WINDQUALITY_NONE _WINDQUALITY_FAST _WINDQUALITY_BETTER _WINDQUALITY_BEST _WINDQUALITY_PALM
            #pragma shader_feature_local EFFECT_BILLBOARD
            #pragma shader_feature_local_fragment EFFECT_HUE_VARIATION
            #pragma shader_feature_local_fragment EFFECT_SUBSURFACE
            #pragma shader_feature_local_fragment EFFECT_BUMP
            #pragma shader_feature_local_fragment EFFECT_EXTRA_TEX

            #define ENABLE_WIND
            #define EFFECT_BACKSIDE_NORMALS

            #include "SpeedTree8Input.hlsl"
            #include "SpeedTree8Passes.hlsl"

            ENDHLSL
        }

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

            HLSLPROGRAM

            #pragma vertex SpeedTree8VertDepth
            #pragma fragment SpeedTree8FragDepth

            #pragma multi_compile _ LOD_FADE_CROSSFADE
            #pragma multi_compile_vertex LOD_FADE_PERCENTAGE
            #pragma multi_compile_instancing
            #pragma instancing_options assumeuniformscaling maxcount:50

            #pragma shader_feature_local_vertex _WINDQUALITY_NONE _WINDQUALITY_FAST _WINDQUALITY_BETTER _WINDQUALITY_BEST _WINDQUALITY_PALM
            #pragma shader_feature_local EFFECT_BILLBOARD

            #define ENABLE_WIND
            #define DEPTH_ONLY
            #define SCENESELECTIONPASS

            #include "SpeedTree8Input.hlsl"
            #include "SpeedTree8Passes.hlsl"

            ENDHLSL
        }

        Pass
        {
            Name "GBuffer"
            Tags{"LightMode" = "UniversalGBuffer"}

            HLSLPROGRAM
            #pragma target 4.5

            // Deferred Rendering Path does not support the OpenGL-based graphics API:
            // Desktop OpenGL, OpenGL ES 3.0, WebGL 2.0.
            #pragma exclude_renderers gles3 glcore

            #pragma vertex SpeedTree8Vert
            #pragma fragment SpeedTree8Frag

            #pragma multi_compile _ _MAIN_LIGHT_SHADOWS _MAIN_LIGHT_SHADOWS_CASCADE _MAIN_LIGHT_SHADOWS_SCREEN
            //#pragma multi_compile _ _ADDITIONAL_LIGHTS_VERTEX _ADDITIONAL_LIGHTS
            //#pragma multi_compile _ _ADDITIONAL_LIGHT_SHADOWS
            #pragma multi_compile_fragment _ _REFLECTION_PROBE_BLENDING
            #pragma multi_compile_fragment _ _REFLECTION_PROBE_BOX_PROJECTION
            #pragma multi_compile_fragment _ _SHADOWS_SOFT _SHADOWS_SOFT_LOW _SHADOWS_SOFT_MEDIUM _SHADOWS_SOFT_HIGH
            #pragma multi_compile _ LOD_FADE_CROSSFADE
            #pragma multi_compile_vertex LOD_FADE_PERCENTAGE
            #pragma multi_compile_fragment _ _GBUFFER_NORMALS_OCT
            #pragma multi_compile_fragment _ _RENDER_PASS_ENABLED
            #include_with_pragmas "Packages/com.unity.render-pipelines.universal/ShaderLibrary/ProbeVolumeVariants.hlsl"
            #include_with_pragmas "Packages/com.unity.render-pipelines.universal/ShaderLibrary/RenderingLayers.hlsl"

            #pragma multi_compile_instancing
            #pragma instancing_options renderinglayer assumeuniformscaling maxcount:50

            #pragma shader_feature_local_vertex _WINDQUALITY_NONE _WINDQUALITY_FAST _WINDQUALITY_BETTER _WINDQUALITY_BEST _WINDQUALITY_PALM
            #pragma shader_feature_local EFFECT_BILLBOARD
            #pragma shader_feature_local_fragment EFFECT_HUE_VARIATION
            #pragma shader_feature_local_fragment EFFECT_SUBSURFACE
            #pragma shader_feature_local_fragment EFFECT_BUMP
            #pragma shader_feature_local_fragment EFFECT_EXTRA_TEX

            #define ENABLE_WIND
            #define EFFECT_BACKSIDE_NORMALS
            #define GBUFFER

            #include "SpeedTree8Input.hlsl"
            #include "SpeedTree8Passes.hlsl"

            ENDHLSL
        }

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

            ColorMask 0

            HLSLPROGRAM

            #pragma vertex SpeedTree8VertDepth
            #pragma fragment SpeedTree8FragDepth

            #pragma multi_compile _ LOD_FADE_CROSSFADE
            #pragma multi_compile_vertex LOD_FADE_PERCENTAGE
            #pragma multi_compile_instancing
            #pragma instancing_options assumeuniformscaling maxcount:50

            #pragma shader_feature_local_vertex _WINDQUALITY_NONE _WINDQUALITY_FAST _WINDQUALITY_BETTER _WINDQUALITY_BEST _WINDQUALITY_PALMlity and backface normal mode enum keywords)
            #pragma shader_feature_local EFFECT_BILLBOARD

            #define ENABLE_WIND
            #define DEPTH_ONLY
            #define SHADOW_CASTER

            // -------------------------------------
            // Universal Pipeline keywords

            // This is used during shadow map generation to differentiate between directional and punctual light shadows, as they use different formulas to apply Normal Bias
            #pragma multi_compile_vertex _ _CASTING_PUNCTUAL_LIGHT_SHADOW

            #include "SpeedTree8Input.hlsl"
            #include "SpeedTree8Passes.hlsl"
            ENDHLSL
        }

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

            ZWrite On
            ColorMask R

            HLSLPROGRAM

            #pragma vertex SpeedTree8VertDepth
            #pragma fragment SpeedTree8FragDepth

            #pragma multi_compile _ LOD_FADE_CROSSFADE
            #pragma multi_compile_vertex LOD_FADE_PERCENTAGE
            #pragma multi_compile_instancing
            #pragma instancing_options assumeuniformscaling maxcount:50

            #pragma shader_feature_local_vertex _WINDQUALITY_NONE _WINDQUALITY_FAST _WINDQUALITY_BETTER _WINDQUALITY_BEST _WINDQUALITY_PALM
            #pragma shader_feature_local EFFECT_BILLBOARD

            #define ENABLE_WIND
            #define DEPTH_ONLY

            #include "SpeedTree8Input.hlsl"
            #include "SpeedTree8Passes.hlsl"

            ENDHLSL
        }

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

            ZWrite On

            HLSLPROGRAM
            #pragma vertex SpeedTree8VertDepthNormal
            #pragma fragment SpeedTree8FragDepthNormal

            #pragma shader_feature_local_vertex _WINDQUALITY_NONE _WINDQUALITY_FAST _WINDQUALITY_BETTER _WINDQUALITY_BEST _WINDQUALITY_PALM
            #pragma shader_feature_local_fragment EFFECT_BUMP

            #pragma multi_compile _ LOD_FADE_CROSSFADE
            #pragma multi_compile_instancing
            #pragma multi_compile_vertex LOD_FADE_PERCENTAGE

            #pragma instancing_options assumeuniformscaling maxcount:50

            #define ENABLE_WIND
            #define EFFECT_BACKSIDE_NORMALS

            #include "SpeedTree8Input.hlsl"
            #include "SpeedTree8Passes.hlsl"
            ENDHLSL
        }
    }

    FallBack "Hidden/Universal Render Pipeline/FallbackError"
    CustomEditor "SpeedTree8ShaderGUI"
}