Initial Commit

Assets/Scripts/DeltaHoone/Weather_System/Grass/Old/FastGrass.shader

@@ -0,0 +1,78 @@
+Shader "DBV/Kristo/FastGrass2.0"
+{
+    Properties
+    {
+        _Color ("Color", Color) = (1,1,1,1)
+        _MainTex ("Texture", 2D) = "white" {}
+        _Glossiness ("Smoothness", Range(0,1)) = 0.5
+        _Metallic ("Metallic", Range(0,1)) = 0.0
+
+        [Space]
+        _AlphaCutoff ("Alpha cutoff", Range(0,1)) = 0.05
+
+        [Space]
+        _WindTexture ("Wind texture", 2D) = "white" {}
+        _WindSpeed ("Wind direction", Vector) = (1,1,1,1)
+        _HeightStart ("Height start", Float) = 0.05
+        _WindStrength ("Wind strength", Float) = 1
+        _WindTimeSpeed ("Wind speed", Float) = 1
+    }
+    SubShader
+    {
+        Tags { "RenderType"="Transparent" }
+        LOD 200
+        Cull Off
+        ZWrite Off
+
+        CGPROGRAM
+        // Physically based Standard lighting model, and enable shadows on all light types
+        #pragma surface surf Standard vertex:vert noshadowmask nodynlightmap nodirlightmap nolightmap noshadow
+
+        // Use shader model 3.0 target, to get nicer looking lighting
+        #pragma target 3.0
+
+        sampler2D _MainTex,_WindTexture;
+
+        struct Input {
+            float2 uv_MainTex;
+            };
+
+        half _Glossiness;
+        half _Metallic;
+        fixed4 _Color;
+        float _AlphaCutoff, _HeightStart, _WindStrength, _WindTimeSpeed;
+        float4 _WindSpeed;
+
+        // Add instancing support for this shader. You need to check 'Enable Instancing' on materials that use the shader.
+        // See https://docs.unity3d.com/Manual/GPUInstancing.html for more information about instancing.
+        // #pragma instancing_options assumeuniformscaling
+        UNITY_INSTANCING_BUFFER_START(Props)
+            // put more per-instance properties here
+        UNITY_INSTANCING_BUFFER_END(Props)
+
+        void vert (inout appdata_full v) {
+            // get vertex world position
+            float4 worldPos = mul(v.vertex, unity_ObjectToWorld);
+            float2 samplePos = worldPos.xz;
+            samplePos += _Time.x * _WindSpeed.xz;
+            float windAmount = tex2Dlod(_WindTexture, float4(samplePos, 0, 0));
+            float heightAmount = v.vertex.z > _HeightStart;//v.vertex.y - _HeightStart;
+            v.vertex.y += sin(_WindTimeSpeed*windAmount)*_WindStrength * heightAmount;
+            v.vertex.x += cos(_WindTimeSpeed*windAmount)*_WindStrength * heightAmount;
+            }
+
+        void surf (Input IN, inout SurfaceOutputStandard o)
+        {
+            // Albedo comes from a texture tinted by color
+            fixed4 c = tex2D (_MainTex, IN.uv_MainTex) * _Color;
+            o.Albedo = c.rgb;
+            // Metallic and smoothness come from slider variables
+            o.Metallic = _Metallic;
+            o.Smoothness = _Glossiness;
+            clip(c.a-_AlphaCutoff);
+            o.Alpha = c.a;
+        }
+        ENDCG
+    }
+    FallBack "Diffuse"
+}