Mindgames/Library/PackageCache/com.unity.render-pipelines.high-definition@6.9.0-preview/Runtime/Material/TerrainLit/TerrainLit_BasemapGen.shader

   1 Shader "Hidden/HDRP/TerrainLit_BasemapGen"
   2 {
   3     Properties
   4     {
   5         [HideInInspector] _DstBlend("DstBlend", Float) = 0.0
   6     }
   7
   8     SubShader
   9     {
  10         Tags { "SplatCount" = "8" }
  11
  12         HLSLINCLUDE
  13
  14         #pragma target 4.5
  15         #pragma only_renderers d3d11 ps4 xboxone vulkan metal switch
  16
  17         #define SURFACE_GRADIENT // Must use Surface Gradient as the normal map texture format is now RG floating point
  18         #include "Packages/com.unity.render-pipelines.core/ShaderLibrary/Common.hlsl"
  19         #include "Packages/com.unity.render-pipelines.high-definition/Runtime/ShaderLibrary/ShaderVariables.hlsl"
  20         #include "Packages/com.unity.render-pipelines.high-definition/Runtime/Material/Material.hlsl"
  21         #include "Packages/com.unity.render-pipelines.core/ShaderLibrary/NormalSurfaceGradient.hlsl"
  22         #include "Packages/com.unity.render-pipelines.high-definition/Runtime/Material/TerrainLit/TerrainLitSurfaceData.hlsl"
  23
  24         // Terrain builtin keywords
  25         #pragma shader_feature_local _TERRAIN_8_LAYERS
  26         #pragma shader_feature_local _NORMALMAP
  27         #pragma shader_feature_local _MASKMAP
  28
  29         #pragma shader_feature_local _TERRAIN_BLEND_HEIGHT
  30
  31         #include "Packages/com.unity.render-pipelines.high-definition/Runtime/Material/TerrainLit/TerrainLit_Splatmap_Includes.hlsl"
  32
  33         CBUFFER_START(UnityTerrain)
  34             UNITY_TERRAIN_CB_VARS
  35             float4 _Control0_ST;
  36             float4 _Control0_TexelSize;
  37         CBUFFER_END
  38
  39         struct Varyings
  40         {
  41             float4 positionCS : SV_POSITION;
  42             float4 texcoord : TEXCOORD0;
  43         };
  44
  45         #pragma vertex Vert
  46         #pragma fragment Frag
  47
  48         float2 ComputeControlUV(float2 uv)
  49         {
  50             // adjust splatUVs so the edges of the terrain tile lie on pixel centers
  51             return (uv * (_Control0_TexelSize.zw - 1.0f) + 0.5f) * _Control0_TexelSize.xy;
  52         }
  53
  54         Varyings Vert(uint vertexID : SV_VertexID)
  55         {
  56             Varyings output;
  57             output.positionCS = GetFullScreenTriangleVertexPosition(vertexID);
  58             output.texcoord.xy = TRANSFORM_TEX(GetFullScreenTriangleTexCoord(vertexID), _Control0);
  59             output.texcoord.zw = ComputeControlUV(output.texcoord.xy);
  60             return output;
  61         }
  62
  63         ENDHLSL
  64
  65         Pass
  66         {
  67             Tags
  68             {
  69                 "Name" = "_MainTex"
  70                 "Format" = "ARGB32"
  71                 "Size" = "1"
  72             }
  73
  74             ZTest Always Cull Off ZWrite Off
  75             Blend One [_DstBlend]
  76
  77             HLSLPROGRAM
  78
  79             #include "Packages/com.unity.render-pipelines.high-definition/Runtime/Material/TerrainLit/TerrainLit_Splatmap.hlsl"
  80
  81             float4 Frag(Varyings input) : SV_Target
  82             {
  83                 TerrainLitSurfaceData surfaceData;
  84                 InitializeTerrainLitSurfaceData(surfaceData);
  85                 TerrainSplatBlend(input.texcoord.zw, input.texcoord.xy, surfaceData);
  86                 return float4(surfaceData.albedo, surfaceData.smoothness);
  87             }
  88
  89             ENDHLSL
  90         }
  91
  92         Pass
  93         {
  94             Tags
  95             {
  96                 "Name" = "_MetallicTex"
  97                 "Format" = "RG16"
  98                 "Size" = "1/4"
  99             }
 100
 101             ZTest Always Cull Off ZWrite Off
 102             Blend One [_DstBlend]
 103
 104             HLSLPROGRAM
 105
 106             #define OVERRIDE_SPLAT_SAMPLER_NAME sampler_Mask0
 107             #include "Packages/com.unity.render-pipelines.high-definition/Runtime/Material/TerrainLit/TerrainLit_Splatmap.hlsl"
 108
 109             float2 Frag(Varyings input) : SV_Target
 110             {
 111                 TerrainLitSurfaceData surfaceData;
 112                 InitializeTerrainLitSurfaceData(surfaceData);
 113                 TerrainSplatBlend(input.texcoord.zw, input.texcoord.xy, surfaceData);
 114                 return float2(surfaceData.metallic, surfaceData.ao);
 115             }
 116
 117             ENDHLSL
 118         }
 119     }
 120     Fallback Off
 121 }