Squashed commit of the following:

commit 4b92a5e6dcb7b9b9386283a4d0d19fd5a3b22633
Author: Andre McGrail <andrem@unity3d.com>
Date:   Wed Dec 2 15:50:55 2020 +0100

    Fix and improve shadows on the water (#130)

commit 88679d7ebeeae4be30f43ebe88cba830f363803b
Author: Andre McGrail <andrem@unity3d.com>
Date:   Mon Nov 23 11:27:01 2020 +0100

    Removed variable 'loop' as itwas causing issues for PS4 compiling (#129)

commit 60b6bc595f20b29f4869d3236ce1aa91a490ef6b
Author: Andre McGrail <andrem@unity3d.com>
Date:   Mon Nov 9 17:32:00 2020 +0100

    Update README.md

commit 87dc01efaab4c7911d5af79355707930b4b4b00b
Author: Andre McGrail <andrem@unity3d.com>
Date:   Mon Nov 9 17:27:13 2020 +0100

    Update README.md

commit 35e7524eded7d0d639332bfb4a17547481aaa91d
Author: Andre McGrail <andrem@unity3d.com>
Date:   Mon Nov 9 17:26:53 2020 +0100

    Update README.md

commit 46718e5dc3772f43ef0b159d75e96588514a68c5
Author: Andre McGrail <andrem@unity3d.com>
Date:   Wed Nov 4 16:29:21 ...

Packages/com.verasl.water-system/Shaders/WaterCommon.hlsl

 {
     // Lighting
 	Light mainLight = GetMainLight(TransformWorldToShadowCoord(input.positionWS));
-    half shadow = SoftShadows(screenUV, input.positionWS);
+    half shadow = SoftShadows(screenUV, input.positionWS, input.viewDirectionWS, input.depth);
     half3 GI = SampleSH(input.normalWS);
 
     // SSS
     return MixFog(output, input.fogCoord);
 }
 
+float WaterNearFade(float3 positionWS)
+{
+    float3 camPos = GetCameraPositionWS();
+    camPos.y = 0;
+    return 1 - saturate((distance(positionWS, camPos) - 50) * 1);
+}
+
 ///////////////////////////////////////////////////////////////////////////////
 //               	   Vertex and Fragment functions                         //
 ///////////////////////////////////////////////////////////////////////////////
     InitializeSurfaceData(inputData, surfaceData);
 
     half4 current;
-    current.a = 1;
+    current.a = WaterNearFade(IN.positionWS);
-    //return color;
+    return current;
 
     ////////////////////////////////////////////////////////////////////////////////////////
     ////////////////////////////////////////////////////////////////////////////////////////
     // Detail waves
     DetailNormals(IN.normalWS, IN.uv, waterFX, depth.x);
 
+    // Distortion
+	half2 distortion = DistortionUVs(depth.x, IN.normalWS);
+	distortion = screenUV.xy + distortion;// * clamp(depth.x, 0, 5);
+	float d = depth.x;
+	depth.xz = AdjustedDepth(distortion, IN.additionalData);
+	distortion = depth.x < 0 ? screenUV.xy : distortion;
+	depth.x = depth.x < 0 ? d : depth.x;
+
+    // Fresnel
+	half fresnelTerm = CalculateFresnelTerm(IN.normalWS, IN.viewDirectionWS.xyz);
+	//return fresnelTerm.xxxx;
+
-    half shadow = SoftShadows(screenUV.xy, IN.positionWS);
+    half shadow = SoftShadows(screenUV, IN.positionWS, IN.viewDirectionWS.xyz, depth.x);
     half3 GI = SampleSH(IN.normalWS);
 
     // SSS
 	// Foam lighting
 	half3 foam = foamMask.xxx * (mainLight.shadowAttenuation * mainLight.color + GI);
 
-	// Distortion
-	half2 distortion = DistortionUVs(depth.x, IN.normalWS);
-	distortion = screenUV.xy + distortion;// * clamp(depth.x, 0, 5);
-	float d = depth.x;
-	depth.xz = AdjustedDepth(distortion, IN.additionalData); // only x y
-	distortion = depth.x < 0 ? screenUV.xy : distortion;
-	depth.x = depth.x < 0 ? d : depth.x;
-
-	// Fresnel
-	half fresnelTerm = CalculateFresnelTerm(IN.normalWS, IN.viewDirectionWS.xyz);
-
-	half3 spec = DirectBDRF(brdfData, IN.normalWS, mainLight.direction, IN.viewDirectionWS.xyz) * shadow * mainLight.color;
+	half3 spec = DirectBDRF(brdfData, IN.normalWS, mainLight.direction, IN.viewDirectionWS) * shadow * mainLight.color;
 #ifdef _ADDITIONAL_LIGHTS
     uint pixelLightCount = GetAdditionalLightsCount();
     for (uint lightIndex = 0u; lightIndex < pixelLightCount; ++lightIndex)
 #endif
 }
 
-#endif // WATER_COMMON_INCLUDED
+#endif // WATER_COMMON_INCLUDED

Packages/com.verasl.water-system/Shaders/WaterLighting.hlsl

 
 #include "Packages/com.unity.render-pipelines.universal/ShaderLibrary/Lighting.hlsl"
 
+#define SHADOW_ITERATIONS 4
+
 half CalculateFresnelTerm(half3 normalWS, half3 viewDirectionWS)
 {
     return saturate(pow(1.0 - dot(normalWS, viewDirectionWS), 5));//fresnel TODO - find a better place
 }
 
 //Soft Shadows
-half SoftShadows(float2 screenUV, float3 positionWS)
+half SoftShadows(float3 screenUV, float3 positionWS, half3 viewDir, half depth)
-    half2 jitterUV = screenUV * _ScreenParams.xy * _DitherPattern_TexelSize.xy;
+#if _MAIN_LIGHT_SHADOWS
+    half2 jitterUV = screenUV.xy * _ScreenParams.xy * _DitherPattern_TexelSize.xy;
-	uint loop = 4;
-	float loopDiv = 1.0 / loop;
-	for (uint i = 0u; i < loop; ++i)
+	float loopDiv = 1.0 / SHADOW_ITERATIONS;
+	half depthFrac = depth * loopDiv;
+	half3 lightOffset = -viewDir * depthFrac;
+	for (uint i = 0u; i < SHADOW_ITERATIONS; ++i)
-	    float3 lightJitter = positionWS + jitterTexture.xzy * 2;
+	    half3 j = jitterTexture.xzy * depthFrac * i * 0.1;
+	    float3 lightJitter = (positionWS + j) + (lightOffset * (i + jitterTexture.y));
+#else
+    return 1;
+#endif
 }
 
 ///////////////////////////////////////////////////////////////////////////////
     return reflection;
 }
 
-#endif // WATER_LIGHTING_INCLUDED
+#endif // WATER_LIGHTING_INCLUDED