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55
Assets/Blocks/Shaders/VoxelLit.shader
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55
Assets/Blocks/Shaders/VoxelLit.shader
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Shader "Blocks/VoxelLit"
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{
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Properties
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{
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_MainTexArray ("Texture Array", 2DArray) = "" {}
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_Glossiness ("Smoothness", Range(0,1)) = 0.0
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_Metallic ("Metallic", Range(0,1)) = 0.0
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}
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SubShader
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{
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Tags { "RenderType"="Opaque" }
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LOD 200
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CGPROGRAM
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// Standard surface shader с кастомным vertex для передачи texIndex
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#pragma surface surf Standard fullforwardshadows vertex:vert
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#pragma target 3.5
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#pragma require 2darray
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UNITY_DECLARE_TEX2DARRAY(_MainTexArray);
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struct Input
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{
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float2 uv_MainTexArray; // стандартный UV (0-1 по грани)
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float texIndex; // индекс слоя в Texture2DArray
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};
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half _Glossiness;
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half _Metallic;
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// Vertex-функция: читаем texIndex из канала UV1 (mesh.uv2)
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void vert(inout appdata_full v, out Input o)
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{
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UNITY_INITIALIZE_OUTPUT(Input, o);
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o.uv_MainTexArray = v.texcoord.xy;
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o.texIndex = v.texcoord1.x; // UV1.x = индекс текстуры
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}
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void surf(Input IN, inout SurfaceOutputStandard o)
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{
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fixed4 c = UNITY_SAMPLE_TEX2DARRAY(
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_MainTexArray,
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float3(IN.uv_MainTexArray, IN.texIndex)
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);
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o.Albedo = c.rgb;
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o.Metallic = _Metallic;
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o.Smoothness = _Glossiness;
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o.Alpha = c.a;
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}
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ENDCG
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}
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FallBack "Diffuse"
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}
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