// Upgrade NOTE: replaced '_Object2World' with 'unity_ObjectToWorld'
// Upgrade NOTE: replaced 'mul(UNITY_MATRIX_MVP,*)' with 'UnityObjectToClipPos(*)'

// Upgrade NOTE: replaced '_Object2World' with '_Object2World'

// define Z_TEXTURE_CHANNELS 4
// define Z_MESH_ATTRIBUTES UV3
// Z_SHADER_METADATA Polybrush Metadata/z_TextureBlendMobile
// Important!  This is a generated file, any changes will be overwritten
// when the _SfTexBlendSrc suffixed version of this shader is modified.


Shader "Polybrush/Texture Blend (Mobile)" {
    Properties {
        _Texture1 ("Texture 1", 2D) = "white" {}
        _Texture2 ("Texture 2", 2D) = "white" {}
        _Texture3 ("Texture 3", 2D) = "white" {}
        _Texture4 ("Texture 4", 2D) = "white" {}
    }
    SubShader {
        Tags {
            "RenderType"="Opaque"
        }
        Pass {
            Name "FORWARD"
            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 multi_compile_fog
            #pragma exclude_renderers gles3 metal d3d11_9x xbox360 xboxone ps3 ps4 psp2 
            #pragma target 3.0
            uniform float4 _LightColor0;
            uniform sampler2D _Texture1; uniform float4 _Texture1_ST;
            
            uniform sampler2D _Texture2; uniform float4 _Texture2_ST;
            uniform sampler2D _Texture3; uniform float4 _Texture3_ST;
            uniform sampler2D _Texture4; uniform float4 _Texture4_ST;
            struct VertexInput {
                float4 vertex : POSITION;
                float3 normal : NORMAL;
                float4 texcoord0 : TEXCOORD0;
                float4 texcoord2 : TEXCOORD2;
                float4 vertexColor : COLOR;
            };
            struct VertexOutput {
                float4 pos : SV_POSITION;
                float4 uv0 : TEXCOORD0;
                float4 uv2 : TEXCOORD1;
                float4 posWorld : TEXCOORD2;
                float3 normalDir : TEXCOORD3;
                float4 vertexColor : COLOR;
                LIGHTING_COORDS(4,5)
                UNITY_FOG_COORDS(6)
            };
            VertexOutput vert (VertexInput v) {
                VertexOutput o = (VertexOutput)0;
                o.uv0 = v.texcoord0;
                o.uv2 = v.texcoord2;
                o.vertexColor = v.vertexColor;
                o.normalDir = UnityObjectToWorldNormal(v.normal);
                o.posWorld = mul(unity_ObjectToWorld, v.vertex);
                float3 lightColor = _LightColor0.rgb;
                o.pos = UnityObjectToClipPos(v.vertex );
                UNITY_TRANSFER_FOG(o,o.pos);
                TRANSFER_VERTEX_TO_FRAGMENT(o)
                return o;
            }
            float4 frag(VertexOutput i) : COLOR {
                i.normalDir = normalize(i.normalDir);
                float3 normalDirection = i.normalDir;
                float3 lightDirection = normalize(_WorldSpaceLightPos0.xyz);
                float3 lightColor = _LightColor0.rgb;
////// Lighting:
                float attenuation = LIGHT_ATTENUATION(i);
                float3 attenColor = attenuation * _LightColor0.xyz;
/////// Diffuse:
                float NdotL = max(0.0,dot( normalDirection, lightDirection ));
                float3 directDiffuse = max( 0.0, NdotL) * attenColor;
                float3 indirectDiffuse = float3(0,0,0);
                indirectDiffuse += UNITY_LIGHTMODEL_AMBIENT.rgb; // Ambient Light
                float4 node_9912 = normalize(float4(i.uv2.r,i.uv2.g,i.uv2.b,i.uv2.a));
                float4 _Texture1_var = tex2D(_Texture1,TRANSFORM_TEX(i.uv0, _Texture1));
                float4 _Texture2_var = tex2D(_Texture2,TRANSFORM_TEX(i.uv0, _Texture2));
                float4 _Texture3_var = tex2D(_Texture3,TRANSFORM_TEX(i.uv0, _Texture3));
                float4 _Texture4_var = tex2D(_Texture4,TRANSFORM_TEX(i.uv0, _Texture4));
                float3 diffuseColor = (i.vertexColor.rgb*(node_9912.r*_Texture1_var.rgb + node_9912.g*_Texture2_var.rgb + node_9912.b*_Texture3_var.rgb + node_9912.a*_Texture4_var.rgb));
                float3 diffuse = (directDiffuse + indirectDiffuse) * diffuseColor;
/// Final Color:
                float3 finalColor = diffuse;
                fixed4 finalRGBA = fixed4(finalColor,1);
                UNITY_APPLY_FOG(i.fogCoord, finalRGBA);
                return finalRGBA;
            }
            ENDCG
        }
        Pass {
            Name "FORWARD_DELTA"
            Tags {
                "LightMode"="ForwardAdd"
            }
            Blend One One
            
            
            CGPROGRAM
            #pragma vertex vert
            #pragma fragment frag
            #define UNITY_PASS_FORWARDADD
            #include "UnityCG.cginc"
            #include "AutoLight.cginc"
            #pragma multi_compile_fwdadd_fullshadows
            #pragma multi_compile_fog
            #pragma exclude_renderers gles3 metal d3d11_9x xbox360 xboxone ps3 ps4 psp2 
            #pragma target 3.0
            uniform float4 _LightColor0;
            uniform sampler2D _Texture1; uniform float4 _Texture1_ST;
            
            uniform sampler2D _Texture2; uniform float4 _Texture2_ST;
            uniform sampler2D _Texture3; uniform float4 _Texture3_ST;
            uniform sampler2D _Texture4; uniform float4 _Texture4_ST;
            struct VertexInput {
                float4 vertex : POSITION;
                float3 normal : NORMAL;
                float4 texcoord0 : TEXCOORD0;
                float4 texcoord2 : TEXCOORD2;
                float4 vertexColor : COLOR;
            };
            struct VertexOutput {
                float4 pos : SV_POSITION;
                float4 uv0 : TEXCOORD0;
                float4 uv2 : TEXCOORD1;
                float4 posWorld : TEXCOORD2;
                float3 normalDir : TEXCOORD3;
                float4 vertexColor : COLOR;
                LIGHTING_COORDS(4,5)
                UNITY_FOG_COORDS(6)
            };
            VertexOutput vert (VertexInput v) {
                VertexOutput o = (VertexOutput)0;
                o.uv0 = v.texcoord0;
                o.uv2 = v.texcoord2;
                o.vertexColor = v.vertexColor;
                o.normalDir = UnityObjectToWorldNormal(v.normal);
                o.posWorld = mul(unity_ObjectToWorld, v.vertex);
                float3 lightColor = _LightColor0.rgb;
                o.pos = UnityObjectToClipPos(v.vertex );
                UNITY_TRANSFER_FOG(o,o.pos);
                TRANSFER_VERTEX_TO_FRAGMENT(o)
                return o;
            }
            float4 frag(VertexOutput i) : COLOR {
                i.normalDir = normalize(i.normalDir);
                float3 normalDirection = i.normalDir;
                float3 lightDirection = normalize(lerp(_WorldSpaceLightPos0.xyz, _WorldSpaceLightPos0.xyz - i.posWorld.xyz,_WorldSpaceLightPos0.w));
                float3 lightColor = _LightColor0.rgb;
////// Lighting:
                float attenuation = LIGHT_ATTENUATION(i);
                float3 attenColor = attenuation * _LightColor0.xyz;
/////// Diffuse:
                float NdotL = max(0.0,dot( normalDirection, lightDirection ));
                float3 directDiffuse = max( 0.0, NdotL) * attenColor;
                float4 node_9912 = normalize(float4(i.uv2.r,i.uv2.g,i.uv2.b,i.uv2.a));
                float4 _Texture1_var = tex2D(_Texture1,TRANSFORM_TEX(i.uv0, _Texture1));
                float4 _Texture2_var = tex2D(_Texture2,TRANSFORM_TEX(i.uv0, _Texture2));
                float4 _Texture3_var = tex2D(_Texture3,TRANSFORM_TEX(i.uv0, _Texture3));
                float4 _Texture4_var = tex2D(_Texture4,TRANSFORM_TEX(i.uv0, _Texture4));
                float3 diffuseColor = (i.vertexColor.rgb*(node_9912.r*_Texture1_var.rgb + node_9912.g*_Texture2_var.rgb + node_9912.b*_Texture3_var.rgb + node_9912.a*_Texture4_var.rgb));
                float3 diffuse = directDiffuse * diffuseColor;
/// Final Color:
                float3 finalColor = diffuse;
                fixed4 finalRGBA = fixed4(finalColor * 1,0);
                UNITY_APPLY_FOG(i.fogCoord, finalRGBA);
                return finalRGBA;
            }
            ENDCG
        }
    }
    FallBack "Diffuse"
    CustomEditor "z_BlendMaterialInspector"
}