306 lines
7.4 KiB
HLSL
306 lines
7.4 KiB
HLSL
//-----------------------------------------------------------------------------
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// Copyright(C) Yan Verde - All Rights Reserved
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// Copyright protected under Unity Asset Store EULA
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// Refer to https://unity3d.com/legal/as_terms for more informations
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// -----------------------------------------------------------------------------
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// URP Water
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// Author : Yan Verde
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// Date : April 10, 2021
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// -----------------------------------------------------------------------------
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#ifndef URPWATER_VARIABLES_INCLUDED
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#define URPWATER_VARIABLES_INCLUDED
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#include "Packages/com.unity.render-pipelines.universal/ShaderLibrary/Core.hlsl"
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#include "Packages/com.unity.render-pipelines.universal/ShaderLibrary/Lighting.hlsl"
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#include "Packages/com.unity.render-pipelines.universal/ShaderLibrary/ShaderGraphFunctions.hlsl"
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#define URP_WATER_PI 3.1415926535
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TEXTURE2D(_CausticsTex);
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TEXTURE3D(_CausticsTex3D);
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TEXTURE2D(_FoamTex);
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TEXTURE2D(_NormalMapA);
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TEXTURE2D(_NormalMapB);
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TEXTURE2D(_NormalMapFar);
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TEXTURE2D(_FlowMap);
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//UNITY_DECLARE_SCREENSPACE_TEXTURE_FLOAT(_CameraDepthTexture); // VR
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//UNITY_DECLARE_SCREENSPACE_TEXTURE(_CameraOpaqueTexture); // VR
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TEXTURE2D(_RefractionColor);
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TEXTURE2D(_DynamicEffectsTexture);
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SAMPLER(sampler_CameraOpaqueTexture_linear_clamp);
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SAMPLER(sampler_ScreenTextures_linear_clamp);
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SAMPLER(sampler_pointTextures_point_clamp);
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TEXTURE2D(_ReflectionTexture);
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TEXTURECUBE(_CubemapTexture);
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SAMPLER(sampler_CubemapTexture);
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SamplerState URPWater_trilinear_repeat_sampler;
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SamplerState URPWater_linear_repeat_sampler;
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SamplerState URPWater_linear_clamp_sampler;
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#if UNITY_VERSION <= 202310 || UNITY_VERSION < 202320
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float4 _CameraOpaqueTexture_TexelSize;
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float4 _CameraDepthTexture_TexelSize;
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#endif
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float4 _DynamicEffectsTexture_TexelSize;
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float4 _DynamicEffectsParams;
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UNITY_INSTANCING_BUFFER_START(UnityPerMaterial)
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float4 _NormalMapA_ST;
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float4 _NormalMapASpeeds;
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float4 _NormalMapATilings;
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float4 _NormalMapB_ST;
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float4 _NormalMapBSpeeds;
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float4 _NormalMapBTilings;
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float4 _NormalMapFarTilings;
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float4 _NormalMapFarSpeeds;
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float4 _FlowTiling;
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float4 _CausticsTiling;
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float4 _Color;
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float4 _DepthColor;
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float4 _UnderWaterColor;
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//float4 _AmbientColor;
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float4 _SpecColor;
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float4 _CausticsSpeed;
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float4 _CausticsSpeed3D;
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float4 _ScatteringColor;
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float4 _FoamColor;
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float4 _FoamTiling;
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float4 _OceanInfos;
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float _CausticsStart;
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float _CausticsEnd;
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float _CausticsTiling3D;
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float _CausticsDistortion;
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float _Distortion;
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float _Smoothness;
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float _NormalMapAIntensity;
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float _NormalMapBIntensity;
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float _NormalMapFarIntensity;
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float _NormalFarDistance;
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float _FlowSpeed;
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float _FlowIntensity;
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float _DepthStart;
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float _DepthEnd;
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float _ReflectionDistortion;
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float _ReflectionFresnelNormal;
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float _ReflectionRoughness;
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float _EdgeSize;
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float _CausticsIntensity;
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float _ReflectionFresnel;
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float _ReflectionIntensity;
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float _FoamSize;
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float _FoamRippleDistance;
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float _FoamRippleSize;
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float _FoamRippleSpeed;
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float _FoamDistortion;
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float _FoamCapsRangeMin;
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float _FoamCapsRangeMax;
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float _FoamCapsIntensity;
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float _ScatteringIntensity;
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float _ScatteringRangeMin;
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float _ScatteringRangeMax;
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float _CapsScatteringIntensity;
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float _CapsScatteringRangeMin;
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float _CapsScatteringRangeMax;
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float _CapsScatterNormals;
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float _DynamicNormal;
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float _DynamicFoam;
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float _DynamicDisplacement;
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float _WaveNormal;
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float _WaveEffectsBoost;
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float _WaveCount;
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float _WaveLength;
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float _WaveAmplitude;
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float _WaveSteepness;
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float _WaveSpeed;
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float _WaveStartDistance;
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float _WaveEndDistance;
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float _ClustersCount;
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float _WavesPerCluster;
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float4 _WaveParams1;
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float4 _WaveParams2;
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float4 _WaveParams3;
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float4 _WaveParams4;
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float4 _WaveOffsets;
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float _Tess;
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UNITY_INSTANCING_BUFFER_END(UnityPerMaterial)
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struct Attributes
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{
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float4 vertex : POSITION;
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float4 color : COLOR;
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float3 normal : NORMAL;
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float4 tangent : TANGENT;
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float2 texcoord : TEXCOORD0;
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#if _DISPLACEMENTMODE_GERSTNER || _DISPLACEMENTMODE_GERSTNERPLUS
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float waveHeight : TEXCOORD1;
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#endif
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UNITY_VERTEX_INPUT_INSTANCE_ID
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};
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struct Varyings
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{
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float4 pos : SV_POSITION;
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half4 color : COLOR;
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half4 normal : NORMAL;
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half4 tangent : TANGENT;
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half4 binormal : BINORMAL;
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float4 texcoord : TEXCOORD0;
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#if _NORMALSMODE_DUAL || _FOAM_ON
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float4 texcoord1 : TEXCOORD1;
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#endif
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#if _NORMAL_FAR_ON
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float4 texcoord2 : TEXCOORD2;
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#endif
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// X: Far Distance, Y: Waves Height Z: W:
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#if _NORMAL_FAR_ON || _DISPLACEMENTMODE_GERSTNER || _DISPLACEMENTMODE_GERSTNERPLUS
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float4 texcoord3 : TEXCOORD3;
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#endif
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float4 screenCoord : TEXCOORD4;
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#if _DYNAMIC_EFFECTS_ON
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float2 projectionUV : TEXCOORD5;
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#endif
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#if defined(REQUIRES_VERTEX_SHADOW_COORD_INTERPOLATOR)
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float4 shadowCoord : TEXCOORD6;
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#endif
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UNITY_VERTEX_INPUT_INSTANCE_ID
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UNITY_VERTEX_OUTPUT_STEREO
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};
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void InitializeVertexData(inout Varyings IN)
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{
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IN.pos = float4(0, 0, 0, 0);
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IN.color = half4(0, 0, 0, 0);
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IN.normal = half4(0, 1, 0, 0);
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IN.tangent = half4(1, 0, 0, 0);
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IN.binormal = half4(0, 0, 1, 0);
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IN.texcoord = float4(0, 0, 0, 0);
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IN.screenCoord = float4(0, 0, 0, 0);
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#if _NORMALSMODE_DUAL || _FOAM_ON
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IN.texcoord1 = float4(0, 0, 0, 0);
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#endif
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#if _NORMAL_FAR_ON
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IN.texcoord2 = float4(0, 0, 0, 0);
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#endif
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#if _NORMAL_FAR_ON || _DISPLACEMENTMODE_GERSTNER || _DISPLACEMENTMODE_GERSTNERPLUS
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IN.texcoord3 = float4(0, 0, 0, 0);
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#endif
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#if _DYNAMIC_EFFECTS_ON
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float2 projectionUV = float2(0, 0);
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#endif
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#if defined(REQUIRES_VERTEX_SHADOW_COORD_INTERPOLATOR)
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IN.shadowCoord = float4(0, 0, 0, 0);
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#endif
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}
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struct GlobalData
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{
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float depth; // Remapped Depth
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float sceneDepth; // Linear Depth
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float rawDepthDst; // Raw Depth Distorted
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float pixelDepth;
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float foamMask;
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float2 refractionOffset;
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float2 refractionUV;
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float3 finalColor;
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float4 refractionData; // RGB: Refraction Color A: Refraction Depth
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float3 clearColor; // RGB: Clear Color
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float3 shadowColor;
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float3 worldPosition;
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float3 worldNormal;
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float3 worldViewDir;
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float4 screenUV;
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#if _DYNAMIC_EFFECTS_ON
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float4 dynamicData;
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#endif
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#if _DOUBLE_SIDED_ON
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float vFace;
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#endif
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#if _SCATTERING_ON
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float3 scattering;
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#endif
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Light mainLight;
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float3 addLight;
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float3x3 tangentToWorld;
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// Debug purpose only
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float4 debug;
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};
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void InitializeGlobalData(inout GlobalData data, Varyings IN)
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{
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data.worldPosition = float3(IN.normal.w, IN.tangent.w, IN.binormal.w);
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data.worldNormal = float3(0, 1, 0);
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data.worldViewDir = GetWorldSpaceNormalizeViewDir(data.worldPosition);//SafeNormalize(_WorldSpaceCameraPos.xyz - data.worldPosition);
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data.screenUV = float4(IN.screenCoord.xyz / IN.screenCoord.w, IN.pos.z); //ComputeScreenPos(TransformWorldToHClip(data.worldPosition), _ProjectionParams.x);
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data.depth = 0;
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data.sceneDepth = 0;
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data.rawDepthDst = 0;
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data.pixelDepth = -TransformWorldToView(data.worldPosition).z; //IN.screenCoord.a;
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data.foamMask = 0;
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data.refractionOffset = float2(0, 0);
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data.refractionUV = float2(0, 0);
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data.refractionData = float4(0, 0, 0 ,0);
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data.clearColor = float3(1, 1, 1);
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data.finalColor = float3(1, 1, 1);
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data.shadowColor = float3(1, 1, 1);
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#if _DYNAMIC_EFFECTS_ON
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data.dynamicData = float4(0, 0, 0, 0);
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#endif
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#if _DOUBLE_SIDED_ON
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data.vFace = 1;
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#endif
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#if _SCATTERING_ON
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data.scattering = float3(0,0,0);
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#endif
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data.mainLight = GetMainLight(TransformWorldToShadowCoord(data.worldPosition));
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data.addLight = float3(0, 0, 0);
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data.tangentToWorld = float3x3(IN.tangent.xyz, IN.binormal.xyz, IN.normal.xyz);
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data.debug = float4 (0, 0, 0, 1);
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}
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#endif |