451 lines
13 KiB
Plaintext
451 lines
13 KiB
Plaintext
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// Upgrade NOTE: replaced '_Object2World' with 'unity_ObjectToWorld'
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Shader "FX/Water4" {
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Properties {
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_ReflectionTex ("Internal reflection", 2D) = "white" {}
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_MainTex ("Fallback texture", 2D) = "black" {}
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_ShoreTex ("Shore & Foam texture ", 2D) = "black" {}
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_BumpMap ("Normals ", 2D) = "bump" {}
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_DistortParams ("Distortions (Bump waves, Reflection, Fresnel power, Fresnel bias)", Vector) = (1.0 ,1.0, 2.0, 1.15)
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_InvFadeParemeter ("Auto blend parameter (Edge, Shore, Distance scale)", Vector) = (0.15 ,0.15, 0.5, 1.0)
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_AnimationTiling ("Animation Tiling (Displacement)", Vector) = (2.2 ,2.2, -1.1, -1.1)
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_AnimationDirection ("Animation Direction (displacement)", Vector) = (1.0 ,1.0, 1.0, 1.0)
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_BumpTiling ("Bump Tiling", Vector) = (1.0 ,1.0, -2.0, 3.0)
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_BumpDirection ("Bump Direction & Speed", Vector) = (1.0 ,1.0, -1.0, 1.0)
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_FresnelScale ("FresnelScale", Range (0.15, 4.0)) = 0.75
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_BaseColor ("Base color", COLOR) = ( .54, .95, .99, 0.5)
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_ReflectionColor ("Reflection color", COLOR) = ( .54, .95, .99, 0.5)
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_SpecularColor ("Specular color", COLOR) = ( .72, .72, .72, 1)
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_WorldLightDir ("Specular light direction", Vector) = (0.0, 0.1, -0.5, 0.0)
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_Shininess ("Shininess", Range (2.0, 500.0)) = 200.0
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_Foam ("Foam (intensity, cutoff)", Vector) = (0.1, 0.375, 0.0, 0.0)
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_GerstnerIntensity("Per vertex displacement", Float) = 1.0
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_GAmplitude ("Wave Amplitude", Vector) = (0.3 ,0.35, 0.25, 0.25)
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_GFrequency ("Wave Frequency", Vector) = (1.3, 1.35, 1.25, 1.25)
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_GSteepness ("Wave Steepness", Vector) = (1.0, 1.0, 1.0, 1.0)
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_GSpeed ("Wave Speed", Vector) = (1.2, 1.375, 1.1, 1.5)
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_GDirectionAB ("Wave Direction", Vector) = (0.3 ,0.85, 0.85, 0.25)
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_GDirectionCD ("Wave Direction", Vector) = (0.1 ,0.9, 0.5, 0.5)
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}
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CGINCLUDE
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#include "UnityCG.cginc"
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#include "WaterInclude.cginc"
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struct appdata
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{
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float4 vertex : POSITION;
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float3 normal : NORMAL;
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};
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// interpolator structs
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struct v2f
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{
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float4 pos : SV_POSITION;
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float4 normalInterpolator : TEXCOORD0;
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float4 viewInterpolator : TEXCOORD1;
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float4 bumpCoords : TEXCOORD2;
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float4 screenPos : TEXCOORD3;
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float4 grabPassPos : TEXCOORD4;
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UNITY_FOG_COORDS(5)
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};
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struct v2f_noGrab
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{
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float4 pos : SV_POSITION;
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float4 normalInterpolator : TEXCOORD0;
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float3 viewInterpolator : TEXCOORD1;
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float4 bumpCoords : TEXCOORD2;
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float4 screenPos : TEXCOORD3;
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UNITY_FOG_COORDS(4)
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};
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struct v2f_simple
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{
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float4 pos : SV_POSITION;
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float4 viewInterpolator : TEXCOORD0;
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float4 bumpCoords : TEXCOORD1;
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UNITY_FOG_COORDS(2)
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};
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// textures
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sampler2D _BumpMap;
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sampler2D _ReflectionTex;
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sampler2D _RefractionTex;
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sampler2D _ShoreTex;
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sampler2D_float _CameraDepthTexture;
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// colors in use
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uniform float4 _RefrColorDepth;
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uniform float4 _SpecularColor;
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uniform float4 _BaseColor;
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uniform float4 _ReflectionColor;
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// edge & shore fading
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uniform float4 _InvFadeParemeter;
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// specularity
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uniform float _Shininess;
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uniform float4 _WorldLightDir;
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// fresnel, vertex & bump displacements & strength
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uniform float4 _DistortParams;
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uniform float _FresnelScale;
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uniform float4 _BumpTiling;
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uniform float4 _BumpDirection;
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uniform float4 _GAmplitude;
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uniform float4 _GFrequency;
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uniform float4 _GSteepness;
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uniform float4 _GSpeed;
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uniform float4 _GDirectionAB;
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uniform float4 _GDirectionCD;
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// foam
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uniform float4 _Foam;
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// shortcuts
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#define PER_PIXEL_DISPLACE _DistortParams.x
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#define REALTIME_DISTORTION _DistortParams.y
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#define FRESNEL_POWER _DistortParams.z
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#define VERTEX_WORLD_NORMAL i.normalInterpolator.xyz
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#define FRESNEL_BIAS _DistortParams.w
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#define NORMAL_DISPLACEMENT_PER_VERTEX _InvFadeParemeter.z
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//
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// HQ VERSION
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//
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v2f vert(appdata_full v)
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{
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v2f o;
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half3 worldSpaceVertex = mul(unity_ObjectToWorld,(v.vertex)).xyz;
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half3 vtxForAni = (worldSpaceVertex).xzz;
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half3 nrml;
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half3 offsets;
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Gerstner (
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offsets, nrml, v.vertex.xyz, vtxForAni, // offsets, nrml will be written
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_GAmplitude, // amplitude
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_GFrequency, // frequency
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_GSteepness, // steepness
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_GSpeed, // speed
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_GDirectionAB, // direction # 1, 2
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_GDirectionCD // direction # 3, 4
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);
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v.vertex.xyz += offsets;
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// one can also use worldSpaceVertex.xz here (speed!), albeit it'll end up a little skewed
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half2 tileableUv = mul(unity_ObjectToWorld,(v.vertex)).xz;
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o.bumpCoords.xyzw = (tileableUv.xyxy + _Time.xxxx * _BumpDirection.xyzw) * _BumpTiling.xyzw;
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o.viewInterpolator.xyz = worldSpaceVertex - _WorldSpaceCameraPos;
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o.pos = UnityObjectToClipPos(v.vertex);
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ComputeScreenAndGrabPassPos(o.pos, o.screenPos, o.grabPassPos);
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o.normalInterpolator.xyz = nrml;
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o.viewInterpolator.w = saturate(offsets.y);
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o.normalInterpolator.w = 1;//GetDistanceFadeout(o.screenPos.w, DISTANCE_SCALE);
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UNITY_TRANSFER_FOG(o,o.pos);
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return o;
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}
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half4 frag( v2f i ) : SV_Target
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{
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half3 worldNormal = PerPixelNormal(_BumpMap, i.bumpCoords, VERTEX_WORLD_NORMAL, PER_PIXEL_DISPLACE);
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half3 viewVector = normalize(i.viewInterpolator.xyz);
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half4 distortOffset = half4(worldNormal.xz * REALTIME_DISTORTION * 10.0, 0, 0);
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half4 screenWithOffset = i.screenPos + distortOffset;
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half4 grabWithOffset = i.grabPassPos + distortOffset;
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half4 rtRefractionsNoDistort = tex2Dproj(_RefractionTex, UNITY_PROJ_COORD(i.grabPassPos));
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half refrFix = SAMPLE_DEPTH_TEXTURE_PROJ(_CameraDepthTexture, UNITY_PROJ_COORD(grabWithOffset));
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half4 rtRefractions = tex2Dproj(_RefractionTex, UNITY_PROJ_COORD(grabWithOffset));
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#ifdef WATER_REFLECTIVE
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half4 rtReflections = tex2Dproj(_ReflectionTex, UNITY_PROJ_COORD(screenWithOffset));
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#endif
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#ifdef WATER_EDGEBLEND_ON
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if (LinearEyeDepth(refrFix) < i.screenPos.z)
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rtRefractions = rtRefractionsNoDistort;
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#endif
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half3 reflectVector = normalize(reflect(viewVector, worldNormal));
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half3 h = normalize ((_WorldLightDir.xyz) + viewVector.xyz);
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float nh = max (0, dot (worldNormal, -h));
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float spec = max(0.0,pow (nh, _Shininess));
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half4 edgeBlendFactors = half4(1.0, 0.0, 0.0, 0.0);
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#ifdef WATER_EDGEBLEND_ON
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float depth = SAMPLE_DEPTH_TEXTURE_PROJ(_CameraDepthTexture, UNITY_PROJ_COORD(i.screenPos));
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depth = LinearEyeDepth(depth);
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edgeBlendFactors = saturate(_InvFadeParemeter * (depth-i.screenPos.w));
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edgeBlendFactors.y = 1.0-edgeBlendFactors.y;
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#endif
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// shading for fresnel term
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worldNormal.xz *= _FresnelScale;
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half refl2Refr = Fresnel(viewVector, worldNormal, FRESNEL_BIAS, FRESNEL_POWER);
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// base, depth & reflection colors
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half4 baseColor = ExtinctColor (_BaseColor, i.viewInterpolator.w * _InvFadeParemeter.w);
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#ifdef WATER_REFLECTIVE
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half4 reflectionColor = lerp (rtReflections,_ReflectionColor,_ReflectionColor.a);
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#else
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half4 reflectionColor = _ReflectionColor;
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#endif
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baseColor = lerp (lerp (rtRefractions, baseColor, baseColor.a), reflectionColor, refl2Refr);
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baseColor = baseColor + spec * _SpecularColor;
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// handle foam
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half4 foam = Foam(_ShoreTex, i.bumpCoords * 2.0);
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baseColor.rgb += foam.rgb * _Foam.x * (edgeBlendFactors.y + saturate(i.viewInterpolator.w - _Foam.y));
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baseColor.a = edgeBlendFactors.x;
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UNITY_APPLY_FOG(i.fogCoord, baseColor);
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return baseColor;
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}
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//
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// MQ VERSION
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//
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v2f_noGrab vert300(appdata_full v)
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{
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v2f_noGrab o;
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half3 worldSpaceVertex = mul(unity_ObjectToWorld,(v.vertex)).xyz;
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half3 vtxForAni = (worldSpaceVertex).xzz;
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half3 nrml;
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half3 offsets;
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Gerstner (
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offsets, nrml, v.vertex.xyz, vtxForAni, // offsets, nrml will be written
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_GAmplitude, // amplitude
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_GFrequency, // frequency
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_GSteepness, // steepness
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_GSpeed, // speed
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_GDirectionAB, // direction # 1, 2
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_GDirectionCD // direction # 3, 4
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);
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v.vertex.xyz += offsets;
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// one can also use worldSpaceVertex.xz here (speed!), albeit it'll end up a little skewed
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half2 tileableUv = mul(unity_ObjectToWorld,v.vertex).xz;
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o.bumpCoords.xyzw = (tileableUv.xyxy + _Time.xxxx * _BumpDirection.xyzw) * _BumpTiling.xyzw;
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o.viewInterpolator.xyz = worldSpaceVertex - _WorldSpaceCameraPos;
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o.pos = UnityObjectToClipPos(v.vertex);
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o.screenPos = ComputeNonStereoScreenPos(o.pos);
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o.normalInterpolator.xyz = nrml;
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o.normalInterpolator.w = 1;//GetDistanceFadeout(o.screenPos.w, DISTANCE_SCALE);
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UNITY_TRANSFER_FOG(o,o.pos);
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return o;
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}
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half4 frag300( v2f_noGrab i ) : SV_Target
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{
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half3 worldNormal = PerPixelNormal(_BumpMap, i.bumpCoords, normalize(VERTEX_WORLD_NORMAL), PER_PIXEL_DISPLACE);
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half3 viewVector = normalize(i.viewInterpolator.xyz);
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half4 distortOffset = half4(worldNormal.xz * REALTIME_DISTORTION * 10.0, 0, 0);
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half4 screenWithOffset = i.screenPos + distortOffset;
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#ifdef WATER_REFLECTIVE
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half4 rtReflections = tex2Dproj(_ReflectionTex, UNITY_PROJ_COORD(screenWithOffset));
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#endif
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half3 reflectVector = normalize(reflect(viewVector, worldNormal));
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half3 h = normalize (_WorldLightDir.xyz + viewVector.xyz);
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float nh = max (0, dot (worldNormal, -h));
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float spec = max(0.0,pow (nh, _Shininess));
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half4 edgeBlendFactors = half4(1.0, 0.0, 0.0, 0.0);
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#ifdef WATER_EDGEBLEND_ON
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half depth = SAMPLE_DEPTH_TEXTURE_PROJ(_CameraDepthTexture, UNITY_PROJ_COORD(i.screenPos));
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depth = LinearEyeDepth(depth);
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edgeBlendFactors = saturate(_InvFadeParemeter * (depth-i.screenPos.z));
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edgeBlendFactors.y = 1.0-edgeBlendFactors.y;
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#endif
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worldNormal.xz *= _FresnelScale;
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half refl2Refr = Fresnel(viewVector, worldNormal, FRESNEL_BIAS, FRESNEL_POWER);
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half4 baseColor = _BaseColor;
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#ifdef WATER_REFLECTIVE
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baseColor = lerp (baseColor, lerp (rtReflections,_ReflectionColor,_ReflectionColor.a), saturate(refl2Refr * 2.0));
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#else
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baseColor = lerp (baseColor, _ReflectionColor, saturate(refl2Refr * 2.0));
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#endif
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baseColor = baseColor + spec * _SpecularColor;
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baseColor.a = edgeBlendFactors.x * saturate(0.5 + refl2Refr * 1.0);
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UNITY_APPLY_FOG(i.fogCoord, baseColor);
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return baseColor;
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}
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//
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// LQ VERSION
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//
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v2f_simple vert200(appdata_full v)
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{
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v2f_simple o;
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half3 worldSpaceVertex = mul(unity_ObjectToWorld, v.vertex).xyz;
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half2 tileableUv = worldSpaceVertex.xz;
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o.bumpCoords.xyzw = (tileableUv.xyxy + _Time.xxxx * _BumpDirection.xyzw) * _BumpTiling.xyzw;
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o.viewInterpolator.xyz = worldSpaceVertex-_WorldSpaceCameraPos;
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o.pos = UnityObjectToClipPos( v.vertex);
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o.viewInterpolator.w = 1;//GetDistanceFadeout(ComputeNonStereoScreenPos(o.pos).w, DISTANCE_SCALE);
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UNITY_TRANSFER_FOG(o,o.pos);
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return o;
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}
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half4 frag200( v2f_simple i ) : SV_Target
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||
|
|
{
|
||
|
|
half3 worldNormal = PerPixelNormal(_BumpMap, i.bumpCoords, half3(0,1,0), PER_PIXEL_DISPLACE);
|
||
|
|
half3 viewVector = normalize(i.viewInterpolator.xyz);
|
||
|
|
|
||
|
|
half3 reflectVector = normalize(reflect(viewVector, worldNormal));
|
||
|
|
half3 h = normalize ((_WorldLightDir.xyz) + viewVector.xyz);
|
||
|
|
float nh = max (0, dot (worldNormal, -h));
|
||
|
|
float spec = max(0.0,pow (nh, _Shininess));
|
||
|
|
|
||
|
|
worldNormal.xz *= _FresnelScale;
|
||
|
|
half refl2Refr = Fresnel(viewVector, worldNormal, FRESNEL_BIAS, FRESNEL_POWER);
|
||
|
|
|
||
|
|
half4 baseColor = _BaseColor;
|
||
|
|
baseColor = lerp(baseColor, _ReflectionColor, saturate(refl2Refr * 2.0));
|
||
|
|
baseColor.a = saturate(2.0 * refl2Refr + 0.5);
|
||
|
|
|
||
|
|
baseColor.rgb += spec * _SpecularColor.rgb;
|
||
|
|
UNITY_APPLY_FOG(i.fogCoord, baseColor);
|
||
|
|
return baseColor;
|
||
|
|
}
|
||
|
|
|
||
|
|
ENDCG
|
||
|
|
|
||
|
|
Subshader
|
||
|
|
{
|
||
|
|
Tags {"RenderType"="Transparent" "Queue"="Transparent"}
|
||
|
|
|
||
|
|
Lod 500
|
||
|
|
ColorMask RGB
|
||
|
|
|
||
|
|
GrabPass { "_RefractionTex" }
|
||
|
|
|
||
|
|
Pass {
|
||
|
|
Blend SrcAlpha OneMinusSrcAlpha
|
||
|
|
ZTest LEqual
|
||
|
|
ZWrite Off
|
||
|
|
Cull Off
|
||
|
|
|
||
|
|
CGPROGRAM
|
||
|
|
|
||
|
|
#pragma target 3.0
|
||
|
|
|
||
|
|
#pragma vertex vert
|
||
|
|
#pragma fragment frag
|
||
|
|
#pragma multi_compile_fog
|
||
|
|
|
||
|
|
#pragma multi_compile WATER_VERTEX_DISPLACEMENT_ON WATER_VERTEX_DISPLACEMENT_OFF
|
||
|
|
#pragma multi_compile WATER_EDGEBLEND_ON WATER_EDGEBLEND_OFF
|
||
|
|
#pragma multi_compile WATER_REFLECTIVE WATER_SIMPLE
|
||
|
|
|
||
|
|
ENDCG
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
Subshader
|
||
|
|
{
|
||
|
|
Tags {"RenderType"="Transparent" "Queue"="Transparent"}
|
||
|
|
|
||
|
|
Lod 300
|
||
|
|
ColorMask RGB
|
||
|
|
|
||
|
|
Pass {
|
||
|
|
Blend SrcAlpha OneMinusSrcAlpha
|
||
|
|
ZTest LEqual
|
||
|
|
ZWrite Off
|
||
|
|
Cull Off
|
||
|
|
|
||
|
|
CGPROGRAM
|
||
|
|
|
||
|
|
#pragma target 3.0
|
||
|
|
|
||
|
|
#pragma vertex vert300
|
||
|
|
#pragma fragment frag300
|
||
|
|
#pragma multi_compile_fog
|
||
|
|
|
||
|
|
#pragma multi_compile WATER_VERTEX_DISPLACEMENT_ON WATER_VERTEX_DISPLACEMENT_OFF
|
||
|
|
#pragma multi_compile WATER_EDGEBLEND_ON WATER_EDGEBLEND_OFF
|
||
|
|
#pragma multi_compile WATER_REFLECTIVE WATER_SIMPLE
|
||
|
|
|
||
|
|
ENDCG
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
Subshader
|
||
|
|
{
|
||
|
|
Tags {"RenderType"="Transparent" "Queue"="Transparent"}
|
||
|
|
|
||
|
|
Lod 200
|
||
|
|
ColorMask RGB
|
||
|
|
|
||
|
|
Pass {
|
||
|
|
Blend SrcAlpha OneMinusSrcAlpha
|
||
|
|
ZTest LEqual
|
||
|
|
ZWrite Off
|
||
|
|
Cull Off
|
||
|
|
|
||
|
|
CGPROGRAM
|
||
|
|
|
||
|
|
#pragma vertex vert200
|
||
|
|
#pragma fragment frag200
|
||
|
|
#pragma multi_compile_fog
|
||
|
|
|
||
|
|
ENDCG
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
Fallback "Transparent/Diffuse"
|
||
|
|
}
|