update shaders for spi support

Assets/pen/UnlitWithColor.shader

@@ -1,53 +1,58 @@
 Shader "Custom/UnlitWithColor"
 {
-    Properties
-    {
-        _Color ("Color", Color) = (1,1,1,1)
-        _MainTex ("Texture", 2D) = "white" {}
-    }
-    SubShader
-    {
-        Tags { "RenderType" = "Opaque" }
-        LOD 100
+	Properties
+	{
+		_Color ("Color", Color) = (1,1,1,1)
+		_MainTex ("Texture", 2D) = "white" {}
+	}
+	SubShader
+	{
+		Tags { "RenderType" = "Opaque" }
+		LOD 100
 
-        Pass
-        {
-            CGPROGRAM
-            #pragma vertex vert
-            #pragma fragment frag
+		Pass
+		{
+			CGPROGRAM
+			#pragma vertex vert
+			#pragma fragment frag
 
-            #include "UnityCG.cginc"
+			#include "UnityCG.cginc"
 
-            struct appdata
-            {
-                float4 vertex : POSITION;
-                float2 uv : TEXCOORD0;
-            };
+			struct appdata
+			{
+				float4 vertex : POSITION;
+				float2 uv : TEXCOORD0;
+				UNITY_VERTEX_INPUT_INSTANCE_ID
+			};
 
-            struct v2f
-            {
-                float2 uv : TEXCOORD0;
-                float4 vertex : SV_POSITION;
-            };
+			struct v2f
+			{
+				float2 uv : TEXCOORD0;
+				float4 vertex : SV_POSITION;
+				UNITY_VERTEX_OUTPUT_STEREO
+			};
 
-            sampler2D _MainTex;
-            float4 _MainTex_ST;
-            fixed4 _Color;
+			sampler2D _MainTex;
+			float4 _MainTex_ST;
+			fixed4 _Color;
 
-            v2f vert (appdata v)
-            {
-                v2f o;
-                o.vertex = UnityObjectToClipPos(v.vertex);
-                o.uv = TRANSFORM_TEX(v.uv, _MainTex);
-                return o;
-            }
+			v2f vert (appdata v)
+			{
+				v2f o;
+				UNITY_SETUP_INSTANCE_ID(v);
+				UNITY_INITIALIZE_OUTPUT(v2f, o);
+				UNITY_INITIALIZE_VERTEX_OUTPUT_STEREO(o);
 
-            fixed4 frag (v2f i) : SV_Target
-            {
-                fixed4 col = tex2D(_MainTex, i.uv);
-                return col * _Color;
-            }
-            ENDCG
-        }
-    }
+				o.vertex = UnityObjectToClipPos(v.vertex);
+				o.uv = TRANSFORM_TEX(v.uv, _MainTex);
+				return o;
+			}
+
+			fixed4 frag (v2f i) : SV_Target
+			{
+				return tex2D(_MainTex, i.uv) * _Color;
+			}
+			ENDCG
+		}
+	}
 }