Shader "Wetness_Shader" {
    Properties {
        _Gloss ("Gloss", Float ) = 0.75
        _Specularity ("Specularity", Float ) = 0.88
        _Texture ("Texture", 2D) = "white" {}
        _NormalMap ("Normal Map", 2D) = "bump" {}
    }
    SubShader {
        Tags {
            "RenderType"="Opaque"
        }
        Pass {
            Name "ForwardBase"
            Tags {
                "LightMode"="ForwardBase"
            }


            CGPROGRAM
            #pragma vertex vert
            #pragma fragment frag
            #define UNITY_PASS_FORWARDBASE
            #include "UnityCG.cginc"
            #include "AutoLight.cginc"
            #pragma multi_compile_fwdbase_fullshadows
            #pragma exclude_renderers xbox360 ps3 flash d3d11_9x
            #pragma target 3.0
            uniform float4 _LightColor0;
            uniform sampler2D _Texture; uniform float4 _Texture_ST;
            uniform float _Specularity;
            uniform sampler2D _NormalMap; uniform float4 _NormalMap_ST;
            uniform float _Gloss;
            struct VertexInput {
                float4 vertex : POSITION;
                float3 normal : NORMAL;
                float4 tangent : TANGENT;
                float2 texcoord0 : TEXCOORD0;
            };
            struct VertexOutput {
                float4 pos : SV_POSITION;
                float2 uv0 : TEXCOORD0;
                float4 posWorld : TEXCOORD1;
                float3 normalDir : TEXCOORD2;
                float3 tangentDir : TEXCOORD3;
                float3 binormalDir : TEXCOORD4;
                LIGHTING_COORDS(5,6)
            };
            VertexOutput vert (VertexInput v) {
                VertexOutput o;
                o.uv0 = v.texcoord0;
                o.normalDir = mul(float4(v.normal,0), _World2Object).xyz;
                o.tangentDir = normalize( mul( _Object2World, float4( v.tangent.xyz, 0.0 ) ).xyz );
                o.binormalDir = normalize(cross(o.normalDir, o.tangentDir) * v.tangent.w);
                o.posWorld = mul(_Object2World, v.vertex);
                o.pos = mul(UNITY_MATRIX_MVP, v.vertex);
                TRANSFER_VERTEX_TO_FRAGMENT(o)
                return o;
            }
            fixed4 frag(VertexOutput i) : COLOR {
                i.normalDir = normalize(i.normalDir);
                float3x3 tangentTransform = float3x3( i.tangentDir, i.binormalDir, i.normalDir);
                float3 viewDirection = normalize(_WorldSpaceCameraPos.xyz - i.posWorld.xyz);
/////// Normals:
                float2 node_158 = i.uv0;
                float node_148 = 0.0;
                float4 node_2 = tex2D(_Texture,TRANSFORM_TEX(node_158.rg, _Texture));
                float3 normalLocal = saturate(( saturate((node_148+node_2.b)) > 0.5 ? (1.0-(1.0-2.0*(saturate((node_148+node_2.b))-0.5))*(1.0-saturate((UnpackNormal(tex2D(_NormalMap,TRANSFORM_TEX(node_158.rg, _NormalMap))).rgb+node_148)))) : (2.0*saturate((node_148+node_2.b))*saturate((UnpackNormal(tex2D(_NormalMap,TRANSFORM_TEX(node_158.rg, _NormalMap))).rgb+node_148))) ));
                float3 normalDirection =  normalize(mul( normalLocal, tangentTransform )); // Perturbed normals
                float3 lightDirection = normalize(_WorldSpaceLightPos0.xyz);
                float3 halfDirection = normalize(viewDirection+lightDirection);
////// Lighting:
                float attenuation = LIGHT_ATTENUATION(i);
                float3 attenColor = attenuation * _LightColor0.xyz;
/////// Diffuse:
                float NdotL = dot( normalDirection, lightDirection );
                float3 diffuse = max( 0.0, NdotL) * attenColor + UNITY_LIGHTMODEL_AMBIENT.rgb;
///////// Gloss:
                float gloss = _Gloss;
                float specPow = exp2( gloss * 10.0+1.0);
////// Specular:
                NdotL = max(0.0, NdotL);
                float3 specularColor = float3(_Specularity,_Specularity,_Specularity);
                float3 specular = (floor(attenuation) * _LightColor0.xyz) * pow(max(0,dot(halfDirection,normalDirection)),specPow) * specularColor;
                float3 finalColor = 0;
                float3 diffuseLight = diffuse;
                finalColor += diffuseLight * node_2.rgb;
                finalColor += specular;
/// Final Color:
                return fixed4(finalColor,1);
            }
            ENDCG
        }
        Pass {
            Name "ForwardAdd"
            Tags {
                "LightMode"="ForwardAdd"
            }
            Blend One One


            Fog { Color (0,0,0,0) }
            CGPROGRAM
            #pragma vertex vert
            #pragma fragment frag
            #define UNITY_PASS_FORWARDADD
            #include "UnityCG.cginc"
            #include "AutoLight.cginc"
            #pragma multi_compile_fwdadd_fullshadows
            #pragma exclude_renderers xbox360 ps3 flash d3d11_9x
            #pragma target 3.0
            uniform float4 _LightColor0;
            uniform sampler2D _Texture; uniform float4 _Texture_ST;
            uniform float _Specularity;
            uniform sampler2D _NormalMap; uniform float4 _NormalMap_ST;
            uniform float _Gloss;
            struct VertexInput {
                float4 vertex : POSITION;
                float3 normal : NORMAL;
                float4 tangent : TANGENT;
                float2 texcoord0 : TEXCOORD0;
            };
            struct VertexOutput {
                float4 pos : SV_POSITION;
                float2 uv0 : TEXCOORD0;
                float4 posWorld : TEXCOORD1;
                float3 normalDir : TEXCOORD2;
                float3 tangentDir : TEXCOORD3;
                float3 binormalDir : TEXCOORD4;
                LIGHTING_COORDS(5,6)
            };
            VertexOutput vert (VertexInput v) {
                VertexOutput o;
                o.uv0 = v.texcoord0;
                o.normalDir = mul(float4(v.normal,0), _World2Object).xyz;
                o.tangentDir = normalize( mul( _Object2World, float4( v.tangent.xyz, 0.0 ) ).xyz );
                o.binormalDir = normalize(cross(o.normalDir, o.tangentDir) * v.tangent.w);
                o.posWorld = mul(_Object2World, v.vertex);
                o.pos = mul(UNITY_MATRIX_MVP, v.vertex);
                TRANSFER_VERTEX_TO_FRAGMENT(o)
                return o;
            }
            fixed4 frag(VertexOutput i) : COLOR {
                i.normalDir = normalize(i.normalDir);
                float3x3 tangentTransform = float3x3( i.tangentDir, i.binormalDir, i.normalDir);
                float3 viewDirection = normalize(_WorldSpaceCameraPos.xyz - i.posWorld.xyz);
/////// Normals:
                float2 node_159 = i.uv0;
                float node_148 = 0.0;
                float4 node_2 = tex2D(_Texture,TRANSFORM_TEX(node_159.rg, _Texture));
                float3 normalLocal = saturate(( saturate((node_148+node_2.b)) > 0.5 ? (1.0-(1.0-2.0*(saturate((node_148+node_2.b))-0.5))*(1.0-saturate((UnpackNormal(tex2D(_NormalMap,TRANSFORM_TEX(node_159.rg, _NormalMap))).rgb+node_148)))) : (2.0*saturate((node_148+node_2.b))*saturate((UnpackNormal(tex2D(_NormalMap,TRANSFORM_TEX(node_159.rg, _NormalMap))).rgb+node_148))) ));
                float3 normalDirection =  normalize(mul( normalLocal, tangentTransform )); // Perturbed normals
                float3 lightDirection = normalize(lerp(_WorldSpaceLightPos0.xyz, _WorldSpaceLightPos0.xyz - i.posWorld.xyz,_WorldSpaceLightPos0.w));
                float3 halfDirection = normalize(viewDirection+lightDirection);
////// Lighting:
                float attenuation = LIGHT_ATTENUATION(i);
                float3 attenColor = attenuation * _LightColor0.xyz;
/////// Diffuse:
                float NdotL = dot( normalDirection, lightDirection );
                float3 diffuse = max( 0.0, NdotL) * attenColor;
///////// Gloss:
                float gloss = _Gloss;
                float specPow = exp2( gloss * 10.0+1.0);
////// Specular:
                NdotL = max(0.0, NdotL);
                float3 specularColor = float3(_Specularity,_Specularity,_Specularity);
                float3 specular = attenColor * pow(max(0,dot(halfDirection,normalDirection)),specPow) * specularColor;
                float3 finalColor = 0;
                float3 diffuseLight = diffuse;
                finalColor += diffuseLight * node_2.rgb;
                finalColor += specular;
/// Final Color:
                return fixed4(finalColor * 1,0);
            }
            ENDCG
        }
    }
    FallBack "Diffuse"
    CustomEditor "ShaderForgeMaterialInspector"
}