diff --git a/Assets/Wireframe/UCLA GameLab Wireframe Shaders.cginc b/Assets/Wireframe/UCLA GameLab Wireframe Shaders.cginc
index 8dd92e5..4cc6eaa 100644
--- a/Assets/Wireframe/UCLA GameLab Wireframe Shaders.cginc	
+++ b/Assets/Wireframe/UCLA GameLab Wireframe Shaders.cginc	
@@ -1,12 +1,25 @@
+//https://answers.unity.com/questions/1702908/geometry-shader-in-vr-stereo-rendering-mode-single.html
+
 #include "UnityCG.cginc"
 #include "UCLA GameLab Wireframe Functions.cginc"
 
 // DATA STRUCTURES //
+
+struct appdata
+{
+    float4 vertex   : POSITION;
+    float2 uv       : TEXCOORD0;
+
+    UNITY_VERTEX_INPUT_INSTANCE_ID
+};
+
 // Vertex to Geometry
 struct UCLAGL_v2g
 {
     float4  pos     : POSITION;     // vertex position
     float2  uv      : TEXCOORD0;    // vertex uv coordinate
+
+    UNITY_VERTEX_INPUT_INSTANCE_ID
 };
 
 // Geometry to  UCLAGL_fragment
@@ -15,6 +28,9 @@ struct UCLAGL_g2f
     float4  pos     : POSITION;     // fragment position
     float2  uv      : TEXCOORD0;    // fragment uv coordinate
     float3  dist    : TEXCOORD1;    // distance to each edge of the triangle
+
+    UNITY_VERTEX_INPUT_INSTANCE_ID
+    UNITY_VERTEX_OUTPUT_STEREO
 };
 
 // PARAMETERS //
@@ -27,11 +43,16 @@ sampler2D _MainTex;         // Texture used for the line
 
 // SHADER PROGRAMS //
 // Vertex Shader
-UCLAGL_v2g UCLAGL_vert(appdata_base v)
+UCLAGL_v2g UCLAGL_vert(appdata v)
 {
     UCLAGL_v2g output;
+
+    UNITY_INITIALIZE_OUTPUT( UCLAGL_v2g, output );
+    UNITY_SETUP_INSTANCE_ID( v );
+    UNITY_TRANSFER_INSTANCE_ID( v, output );
+
     output.pos = UnityObjectToClipPos(v.vertex);
-    output.uv = TRANSFORM_TEX (v.texcoord, _MainTex);
+    output.uv = TRANSFORM_TEX (v.uv, _MainTex);
 
     return output;
 }
@@ -45,18 +66,30 @@ void UCLAGL_geom(triangle UCLAGL_v2g p[3], inout TriangleStream<UCLAGL_g2f> triS
     UCLAGL_g2f pIn;
     
     // add the first point
+    UNITY_INITIALIZE_OUTPUT( UCLAGL_g2f, pIn );
+    UNITY_SETUP_INSTANCE_ID( p[0] );
+    UNITY_TRANSFER_INSTANCE_ID( p[0], pIn );
+    UNITY_INITIALIZE_VERTEX_OUTPUT_STEREO( pIn );
     pIn.pos = p[0].pos;
     pIn.uv = p[0].uv;
     pIn.dist = float3(dist.x, 0, 0);
     triStream.Append(pIn);
 
     // add the second point
+    UNITY_INITIALIZE_OUTPUT( UCLAGL_g2f, pIn );
+    UNITY_SETUP_INSTANCE_ID( p[1] );
+    UNITY_TRANSFER_INSTANCE_ID( p[1], pIn );
+    UNITY_INITIALIZE_VERTEX_OUTPUT_STEREO( pIn );
     pIn.pos =  p[1].pos;
     pIn.uv = p[1].uv;
     pIn.dist = float3(0, dist.y, 0);
     triStream.Append(pIn);
     
     // add the third point
+    UNITY_INITIALIZE_OUTPUT( UCLAGL_g2f, pIn );
+    UNITY_SETUP_INSTANCE_ID( p[2] );
+    UNITY_TRANSFER_INSTANCE_ID( p[2], pIn );
+    UNITY_INITIALIZE_VERTEX_OUTPUT_STEREO( pIn );
     pIn.pos = p[2].pos;
     pIn.uv = p[2].uv;
     pIn.dist = float3(0, 0, dist.z);