add scene fixes

Assets/Bakery/ftOverlapTest.shader

@@ -0,0 +1,49 @@
+Shader "Hidden/ftOverlapTest"
+{
+	Properties
+	{
+		_MainTex ("Texture", 2D) = "white" {}
+	}
+	SubShader
+	{
+		// No culling or depth
+		Cull Off ZWrite Off ZTest Always
+        Blend One One
+
+		Pass
+		{
+			CGPROGRAM
+			#pragma vertex vert
+			#pragma fragment frag
+
+			#include "UnityCG.cginc"
+
+            float uvSet;
+
+			struct appdata
+			{
+                float2 uv0 : TEXCOORD0;
+				float2 uv1 : TEXCOORD1;
+			};
+
+			struct v2f
+			{
+				float4 vertex : SV_POSITION;
+			};
+
+			v2f vert (appdata v)
+			{
+                v2f o;
+                float2 uv = uvSet > 0.0f ? v.uv1 : v.uv0;
+				o.vertex = float4(uv*2-1, 0.5, 1);
+                return o;
+			}
+
+			fixed4 frag (v2f i) : SV_Target
+			{
+                return float4(1,1,1,1) * (1.0f / 255.0f);
+			}
+			ENDCG
+		}
+	}
+}