// Alloy Physical Shader Framework
// Copyright 2013-2017 RUST LLC.
// http://www.alloy.rustltd.com/

Shader "Alloy/Legacy/Human/Eye/Eyeball (Forward)" {
Properties {    
    // Main Textures
    _MainTextures ("'Eyeball Textures' {Section:{Color:0}}", Float) = 0
    [LM_Albedo] [LM_Transparency] 
    _Color ("'Tint' {}", Color) = (1,1,1,1)	
    [LM_MasterTilingOffset] [LM_Albedo] 
    _MainTex ("'Base Color(RGB) Iris Depth(A)' {Visualize:{RGB, A}}", 2D) = "white" {}
    _MainTexVelocity ("Scroll", Vector) = (0,0,0,0) 
    _MainTexUV ("UV Set", Float) = 0
    [LM_Metallic]
    _SpecTex ("'Iris(R) AO(G) Spec(B) Rough(A)' {Visualize:{R, G, B, A}, Parent:_MainTex}", 2D) = "white" {}
    [LM_NormalMap]
    _BumpMap ("'Normals' {Visualize:{NRM}, Parent:_MainTex}", 2D) = "bump" {}
    _BaseColorVertexTint ("'Vertex Color Tint' {Min:0, Max:1}", Float) = 0
     
    // Main Properties
    _MainPhysicalProperties ("'Main Properties' {Section:{Color:1}}", Float) = 0
    _Specularity ("'Specularity' {Min:0, Max:1}", Float) = 1
    _Roughness ("'Roughness' {Min:0, Max:1}", Float) = 1
    _Occlusion ("'Occlusion Strength' {Min:0, Max:1}", Float) = 1
    _BumpScale ("'Normal Strength' {}", Float) = 1
    
    // Eye Properties 
    _EyeProperties ("'Eye' {Section:{Color:2}}", Float) = 0
    _EyeScleraColor ("'Sclera Tint' {}", Color) = (1,1,1)
    _EyeScleraScattering ("'Sclera Scattering' {Min:0, Max:1}", Float) = 0
    _EyeSpecularity ("'Cornea Specularity' {Min:0, Max:1}", Float) = 0.36
    _EyeRoughness ("'Cornea Roughness' {Min:0, Max:1}", Float) = 0
    
    // Iris Properties 
    _IrisProperties ("'Iris' {Section:{Color:3}}", Float) = 0
    _EyeColor ("'Tint' {}", Color) = (1,1,1)
    _EyeIrisScattering ("'Scattering' {Min:0, Max:1}", Float) = 0
    _EyeSpecularTint ("'Specular Tint' {Min:0, Max:1}", Float) = 1
    _EyeParallax ("'Depth' {Min:0, Max:0.08}", Float) = 0.08
    _EyePupilSize ("'Pupil Dilation' {Min:0, Max:1}", Float) = 0
    
    // Detail
    [Toggle(_DETAIL_MULX2)] 
    _DetailT ("'Detail' {Feature:{Color:7}}", Float) = 0
    [Enum(Mul, 0, MulX2, 1)] 
    _DetailMode ("'Color Mode' {Dropdown:{Mul:{}, MulX2:{}}}", Float) = 0
    _DetailAlbedoMap ("'Color(RGB)' {Visualize:{RGB}}", 2D) = "white" {}
    _DetailAlbedoMapVelocity ("Scroll", Vector) = (0,0,0,0) 
    _DetailAlbedoMapUV ("UV Set", Float) = 0
    _DetailNormalMap ("'Normals' {Visualize:{NRM}, Parent:_DetailAlbedoMap}", 2D) = "bump" {}
    _DetailWeight ("'Weight' {Min:0, Max:1}", Float) = 1
    _DetailNormalMapScale ("'Normal Strength' {}", Float) = 1

    // Decal
    [Toggle(_DECAL_ON)] 
    _Decal ("'Decal' {Feature:{Color:9}}", Float) = 0	
    _DecalColor ("'Tint' {}", Color) = (1,1,1,1)
    _DecalTex ("'Base Color(RGB) Opacity(A)' {Visualize:{RGB, A}}", 2D) = "black" {} 
    _DecalTexUV ("UV Set", Float) = 0
    _DecalWeight ("'Weight' {Min:0, Max:1}", Float) = 1
    _DecalSpecularity ("'Specularity' {Min:0, Max:1}", Float) = 0.5
    _DecalAlphaVertexTint ("'Vertex Alpha Tint' {Min:0, Max:1}", Float) = 0

    // Emission 
    [Toggle(_EMISSION)] 
    _Emission ("'Emission' {Feature:{Color:10}}", Float) = 0
    [LM_Emission] 
    [HDR]
    _EmissionColor ("'Tint' {}", Color) = (1,1,1)
    [LM_Emission] 
    _EmissionMap ("'Mask(RGB)' {Visualize:{RGB}, Parent:_MainTex}", 2D) = "white" {}
    _IncandescenceMap ("'Effect(RGB)' {Visualize:{RGB}}", 2D) = "white" {} 
    _IncandescenceMapVelocity ("Scroll", Vector) = (0,0,0,0) 
    _IncandescenceMapUV ("UV Set", Float) = 0
    [Gamma]
    _EmissionWeight ("'Weight' {Min:0, Max:1}", Float) = 1

    // Rim Emission 
    [Toggle(_RIM_ON)] 
    _Rim ("'Rim Emission' {Feature:{Color:11}}", Float) = 0
    [HDR]
    _RimColor ("'Tint' {}", Color) = (1,1,1)
    _RimTex ("'Effect(RGB)' {Visualize:{RGB}}", 2D) = "white" {}
    _RimTexVelocity ("Scroll", Vector) = (0,0,0,0) 
    _RimTexUV ("UV Set", Float) = 0
    [Gamma]
    _RimWeight ("'Weight' {Min:0, Max:1}", Float) = 1
    [Gamma]
    _RimBias ("'Fill' {Min:0, Max:1}", Float) = 0
    _RimPower ("'Falloff' {Min:0.01}", Float) = 4

    // Dissolve 
    [Toggle(_DISSOLVE_ON)] 
    _Dissolve ("'Dissolve' {Feature:{Color:12}}", Float) = 0
    [HDR]
    _DissolveGlowColor ("'Glow Tint' {}", Color) = (1,1,1,1)
    _DissolveTex ("'Glow Color(RGB) Opacity(A)' {Visualize:{RGB, A}}", 2D) = "white" {} 
    _DissolveTexUV ("UV Set", Float) = 0
    _DissolveCutoff ("'Cutoff' {Min:0, Max:1}", Float) = 0
    [Gamma]
    _DissolveGlowWeight ("'Glow Weight' {Min:0, Max:1}", Float) = 1
    _DissolveEdgeWidth ("'Glow Width' {Min:0, Max:1}", Float) = 0.01

    // Forward Rendering Options
    _ForwardRenderingOptions ("'Forward Rendering Options' {Section:{Color:19}}", Float) = 0
    [ToggleOff] 
    _SpecularHighlights ("'Specular Highlights' {Toggle:{On:{}, Off:{}}}", Float) = 1.0
    [ToggleOff] 
    _GlossyReflections ("'Glossy Reflections' {Toggle:{On:{}, Off:{}}}", Float) = 1.0

    // Advanced Options
    _AdvancedOptions ("'Advanced Options' {Section:{Color:20}}", Float) = 0
    _Lightmapping ("'GI' {LightmapEmissionProperty:{}}", Float) = 1
    _RenderQueue ("'Render Queue' {RenderQueue:{}}", Float) = 0
    _EnableInstancing ("'Enable Instancing' {EnableInstancing:{}}", Float) = 0
}

SubShader {
    Tags { 
        "Queue" = "Geometry" 
        "RenderType" = "Opaque"
        //"DisableBatching" = "LODFading"
    }
    LOD 400

    Pass {
        Name "FORWARD" 
        Tags { "LightMode" = "ForwardBase" }

        CGPROGRAM
        #pragma target 3.0
        #pragma exclude_renderers gles
        
        #pragma shader_feature _DETAIL_MULX2
        #pragma shader_feature _DECAL_ON
        #pragma shader_feature _EMISSION
        #pragma shader_feature _RIM_ON
        #pragma shader_feature _DISSOLVE_ON
        #pragma shader_feature _ _SPECULARHIGHLIGHTS_OFF
        #pragma shader_feature _ _GLOSSYREFLECTIONS_OFF
        
        //#pragma multi_compile __ LOD_FADE_PERCENTAGE LOD_FADE_CROSSFADE
        #pragma multi_compile_fwdbase
        #pragma multi_compile_fog
        #pragma multi_compile_instancing
        //#pragma multi_compile __ VTRANSPARENCY_ON
            
        #pragma vertex aMainVertexShader
        #pragma fragment aMainFragmentShader
        
        #define UNITY_PASS_FORWARDBASE
        
        #include "Assets/Alloy/Legacy/Shaders/Definition/EyeballForward.cginc"
        #include "Assets/Alloy/Shaders/Forward/Base.cginc"

        ENDCG
    }
    
    Pass {
        Name "FORWARD_DELTA"
        Tags { "LightMode" = "ForwardAdd" }
        
        Blend One One
        ZWrite Off

        CGPROGRAM
        #pragma target 3.0
        #pragma exclude_renderers gles
        
        #pragma shader_feature _DETAIL_MULX2
        #pragma shader_feature _DECAL_ON
        #pragma shader_feature _DISSOLVE_ON
        #pragma shader_feature _ _SPECULARHIGHLIGHTS_OFF
        
        //#pragma multi_compile __ LOD_FADE_PERCENTAGE LOD_FADE_CROSSFADE
        #pragma multi_compile_fwdadd_fullshadows
        #pragma multi_compile_fog
        //#pragma multi_compile __ VTRANSPARENCY_ON
        
        #pragma vertex aMainVertexShader
        #pragma fragment aMainFragmentShader

        #define UNITY_PASS_FORWARDADD

        #include "Assets/Alloy/Legacy/Shaders/Definition/EyeballForward.cginc"
        #include "Assets/Alloy/Shaders/Forward/Add.cginc"

        ENDCG
    }
    
    Pass {
        Name "SHADOWCASTER"
        Tags { "LightMode" = "ShadowCaster" }
        
        CGPROGRAM
        #pragma target 3.0
        #pragma exclude_renderers gles

        #pragma shader_feature _DISSOLVE_ON
        
        #pragma multi_compile_shadowcaster
        #pragma multi_compile_instancing

        #pragma vertex aMainVertexShader
        #pragma fragment aMainFragmentShader
        
        #define UNITY_PASS_SHADOWCASTER
        
        #include "Assets/Alloy/Legacy/Shaders/Definition/EyeballForward.cginc"
        #include "Assets/Alloy/Shaders/Forward/Shadow.cginc"

        ENDCG
    }
    
    Pass {
        Name "Meta"
        Tags { "LightMode" = "Meta" }

        Cull Off

        CGPROGRAM
        #pragma target 3.0
        #pragma exclude_renderers nomrt gles
        
        #pragma shader_feature _DETAIL_MULX2
        #pragma shader_feature _DECAL_ON
        #pragma shader_feature _EMISSION
        
        #pragma vertex aMainVertexShader
        #pragma fragment aMainFragmentShader
        
        #define UNITY_PASS_META
        
        #include "Assets/Alloy/Legacy/Shaders/Definition/EyeballForward.cginc"
        #include "Assets/Alloy/Shaders/Forward/Meta.cginc"

        ENDCG
    }
}

FallBack "VertexLit"
CustomEditor "AlloyFieldBasedEditor"
}