Upgraded the project to Unity 2017 and fixed the subshader tags that were changed since 5.6 and had broken it. The scripts still work with 5.6 (just not the project/scenes), though I've decided to move ahead since 2017 seems to be the default version supported by Unity. Future changes may lead to ending support for 5.5 and 5.6, but they haven't changed it enough yet to require that.

Author: TheMasonX

Assets/PCSS/Demo/Demo Assets/Materials/Skybox.mat

@@ -0,0 +1,98 @@
+Shader "Custom/Vegetation"
+{
+	Properties
+	{
+        _MainTex ("Base Color", 2D) = "white" {}
+		[Normal] [NoScaleOffset]
+		_NormalMap ("Normal Map", 2D) = "bump" {}
+        _Metallic ("Metallic", Range(0, 1)) = 0
+        _Gloss ("Gloss", Range(0, 1)) = 0.1336244
+		
+		[Space(10)] [NoScaleOffset]
+		_WindNoise ("Wind Noise", 2D) = "gray" {}
+		_WindNoiseScale ("Wind Noise Position Scale", Float ) = .1
+		_WindNoiseSpeed ("Wind Noise Speed", Float ) = .1
+		_WindNoiseStrength ("Wind Noise Strength", Range(0,10)) = .3
+
+		[Space(10)] 
+		_Wind_Direction ("Wind_Direction", Vector) = (1,0,1,0)
+        _WindFrequency ("Wind Frequency", Float ) = 1.5
+        _WindAmplitude ("Wind Amplitude", Float ) = 0.03
+        _Cutoff ("Alpha cutoff", Range(0,1)) = 0.5
+
+		[Space(10)] 
+		_Phong ("Phong Strengh", Range(0,1)) = 0.5
+		_Tess ("Tessellation", Range(1,32)) = 4
+	}
+	SubShader
+	{
+		Tags { "RenderType" = "TreeTransparentCutout" }
+		LOD 200
+
+		CGPROGRAM
+		#pragma surface surf Standard vertex:vert alphatest:_Cutoff addshadow fullforwardshadows tessellate:tessDistance tessphong:_Phong nolightmap
+		#include "Tessellation.cginc"
+		#pragma target 5.0
+
+		sampler2D _MainTex;
+		sampler2D _NormalMap;
+		sampler2D _WindNoise;
+
+		struct appdata
+		{
+			float4 vertex : POSITION;
+			float3 normal : NORMAL;
+			float4 tangent : TANGENT;
+			float4 color : COLOR;
+			float2 texcoord : TEXCOORD0;
+		};
+
+		struct Input
+		{
+			float4 pos : SV_POSITION;
+			float2 uv_MainTex : TEXCOORD0;
+		};
+
+		float _Phong;
+		float _Tess;
+
+		float4 tessDistance(appdata v0, appdata v1, appdata v2)
+		{
+			float minDist = 7.5;
+			float maxDist = 25.0;
+			return UnityDistanceBasedTess(v0.vertex, v1.vertex, v2.vertex, minDist, maxDist, _Tess);
+		}
+
+
+		fixed4 _Wind_Direction;
+		half _Metallic;
+		half _Gloss;
+		float _WindNoiseScale;
+		float _WindNoiseSpeed;
+		float _WindNoiseStrength;
+
+		float _WindFrequency;
+		float _WindAmplitude;
+
+		void vert(inout appdata v)
+		{
+			float3 pos = mul(v.vertex, unity_ObjectToWorld);
+			float noiseA = tex2Dlod(_WindNoise, float4(pos.xz * _WindNoiseScale + _Time.x * float2(_WindNoiseSpeed, _WindNoiseSpeed), 0.0, 0.0)).r * _WindNoiseStrength;
+			 
+			v.vertex.xyz += (mul(_Wind_Direction.xyz, unity_WorldToObject) * v.color.r * sin(v.color.b*3.141592654 + (_Time.y + noiseA) *_WindFrequency) *_WindAmplitude);
+		}
+
+		void surf(Input IN, inout SurfaceOutputStandard o)
+		{
+			fixed4 c = tex2D(_MainTex, IN.uv_MainTex);
+			o.Albedo = c.rgb;
+
+			o.Normal = UnpackNormal(tex2D(_NormalMap, IN.uv_MainTex));
+			o.Metallic = _Metallic;
+			o.Smoothness = _Gloss;
+			o.Alpha = c.a;
+		}
+		ENDCG
+	}
+	FallBack "Diffuse"
+}

Assets/PCSS/Demo/Demo Assets/Palm Trees/Shaders/Vegetation Tesselation.shader

@@ -74,7 +74,8 @@ private void UpdateUI ()
         graphicsAPIText.text = string.Format("Graphics API: {0}", SystemInfo.graphicsDeviceType);
         string vysncText = (QualitySettings.vSyncCount > 0) ? "Enabled" : "Disabled";
         vsyncStatusText.text = string.Format("VSync: {0}", vysncText);
-        frameRateText.text = string.Format("Frame Rate: Avg {0} | Min {1} | Max {2}", avgFPS.TS(), minFPS.TS(), maxFPS.TS());
+        frameRateText.text = string.Format("Average Frame Rate: {0} FPS", avgFPS.TS());
+        //frameRateText.text = string.Format("Frame Rate: Avg {0} | Min {1} | Max {2}", avgFPS.TS(), minFPS.TS(), maxFPS.TS());
         //frameRateText.text = string.Format("Frame Rate: Avg {0} | Min {1} | Max {2} | Low {3} | High {4}", avgFPS.TS(), minFPS.TS(), maxFPS.TS(), lowFPS.TS(), highFPS.TS());
         Invoke("UpdateUI", updateInterval);
     }