diff --git a/Assets/HipParticle/Shaders/ConstellationLine.shader b/Assets/HipParticle/Shaders/ConstellationLine.shader
index e0a1f89..03fe389 100644
--- a/Assets/HipParticle/Shaders/ConstellationLine.shader
+++ b/Assets/HipParticle/Shaders/ConstellationLine.shader
@@ -16,13 +16,14 @@
             #pragma vertex vert
             #pragma fragment frag
             #pragma multi_compile_fog
-            
+            #pragma multi_compile_instancing
             #include "UnityCG.cginc"
 
             struct appdata
             {
                 float4 vertex : POSITION;
                 float2 uv : TEXCOORD0;
+                UNITY_VERTEX_INPUT_INSTANCE_ID
             };
 
             struct v2f
@@ -34,6 +35,7 @@
 
             v2f vert (appdata v)
             {
+                UNITY_SETUP_INSTANCE_ID(v);
                 v2f o;
                 o.vertex = UnityObjectToClipPos(v.vertex);
                 UNITY_TRANSFER_FOG(o,o.vertex);