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Assets/VRTemplateAssets/Shaders/Grid.shader

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+Shader "Unlit/Grid"
+{
+    Properties
+    {
+        _GridColour ("Grid Colour", color) = (1, 1, 1, 1)
+        _BaseColour ("Base Colour", color) = (1, 1, 1, 0)
+        _GridSpacing ("Grid Spacing", float) = 1
+        _LineThickness ("Line Thickness", float) = .1
+        _ODistance ("Start Transparency Distance", float) = 5
+        _TDistance ("Full Transparency Distance", float) = 10
+    }
+    SubShader
+    {
+        Tags { "RenderType"="Transparent" "Queue"="Transparent"}
+        LOD 100
+        Blend SrcAlpha OneMinusSrcAlpha
+        ZWrite Off
+        Pass
+        {
+            CGPROGRAM
+            #pragma vertex vert
+            #pragma fragment frag
+            #include "UnityCG.cginc"
+            struct appdata
+            {
+                float4 vertex : POSITION;
+                UNITY_VERTEX_INPUT_INSTANCE_ID
+            };
+            struct v2f
+            {
+                float4 vertex : SV_POSITION;
+                float2 uv : TEXCOORD0;
+                float3 worldPos : TEXCOORD1;
+                UNITY_VERTEX_OUTPUT_STEREO
+            };
+
+            fixed4 _GridColour;
+            fixed4 _BaseColour;
+            float _GridSpacing;
+            float _LineThickness;
+            float _ODistance;
+            float _TDistance;
+
+            v2f vert (appdata_full v)
+            {
+                v2f o;
+                UNITY_SETUP_INSTANCE_ID(v);
+                UNITY_INITIALIZE_VERTEX_OUTPUT_STEREO(o);
+                o.vertex = UnityObjectToClipPos(v.vertex);
+                o.worldPos = mul(unity_ObjectToWorld, v.vertex);
+                o.uv = o.worldPos.xz / _GridSpacing;
+                return o;
+            }
+
+            fixed4 frag (v2f i) : SV_Target
+            {
+                float2 wrapped = frac(i.uv) - 0.5f;
+                float2 range = abs(wrapped);
+                float2 speeds;
+                speeds = fwidth(i.uv);
+                float2 pixelRange = range/speeds;
+                float lineWeight = saturate(min(pixelRange.x, pixelRange.y) - _LineThickness);
+                half4 param = lerp(_GridColour, _BaseColour, lineWeight);
+
+                //distance falloff
+                half3 viewDirW = _WorldSpaceCameraPos - i.worldPos;
+                half viewDist = length(viewDirW);
+                half falloff = saturate((viewDist - _ODistance) / (_TDistance - _ODistance) );
+                param.a *= (1.0f - falloff);
+                return param;
+            }
+            ENDCG
+        }
+    }
+}