Upgraded original RothenburgAR to Unity version 2017.4.5f1 (and upgrading from standalone vuforia to the version integrated in unity)

Assets/Vuforia/Shaders/BrightTexture.shader

@@ -0,0 +1,57 @@
+//==============================================================================
+//Copyright (c) 2013-2014 Qualcomm Connected Experiences, Inc.
+//All Rights Reserved.
+//==============================================================================
+
+Shader "Custom/BrightTexture" {
+    Properties {
+        _MainTex ("Base (RGB)", 2D) = "white" {}
+    }
+    SubShader {
+
+    Pass{
+
+        CGPROGRAM
+
+        #pragma vertex vert
+        #pragma fragment frag
+
+        #include "UnityCG.cginc"
+
+        sampler2D _MainTex;
+
+        struct v2f {
+            float4  pos : SV_POSITION;
+            float2  uv : TEXCOORD0;
+        };
+
+        float4 _MainTex_ST;
+
+        v2f vert (appdata_base v)
+        {
+            v2f o;
+            o.pos = UnityObjectToClipPos (v.vertex);
+            o.uv = TRANSFORM_TEX(v.texcoord, _MainTex);
+            return o;
+        }
+
+        
+        half4 frag(v2f i) : COLOR
+        {
+            half4 c = tex2D (_MainTex, i.uv);
+
+            float scale = 0.2f;
+            c.rgb = c.rgb * scale + 1.0f - scale;
+
+            return c;
+        }
+
+        ENDCG
+    }
+    }
+
+
+
+     
+    FallBack "Diffuse"
+}