diff --git a/Source/Scene/GlobeSurfaceShaderSet.js b/Source/Scene/GlobeSurfaceShaderSet.js
index b4a0c20abe17..88e35e780ca8 100644
--- a/Source/Scene/GlobeSurfaceShaderSet.js
+++ b/Source/Scene/GlobeSurfaceShaderSet.js
@@ -70,7 +70,7 @@ define([
         var quantization = 0;
         var quantizationDefine = '';
 
-        var mesh = surfaceTile.mesh || surfaceTile.fillMesh;
+        var mesh = surfaceTile.vertexArray !== undefined ? surfaceTile.mesh : surfaceTile.fillMesh;
         var terrainEncoding = mesh.encoding;
         var quantizationMode = terrainEncoding.quantization;
         if (quantizationMode === TerrainQuantization.BITS12) {
diff --git a/Source/Scene/GlobeSurfaceTileProvider.js b/Source/Scene/GlobeSurfaceTileProvider.js
index eadf2cee5ac2..d56404c9f1db 100644
--- a/Source/Scene/GlobeSurfaceTileProvider.js
+++ b/Source/Scene/GlobeSurfaceTileProvider.js
@@ -1107,6 +1107,9 @@ define([
             u_initialColor : function() {
                 return this.properties.initialColor;
             },
+            u_isFill : function() {
+                return this.properties.isFill;
+            },
             u_zoomedOutOceanSpecularIntensity : function() {
                 return this.properties.zoomedOutOceanSpecularIntensity;
             },
@@ -1218,6 +1221,7 @@ define([
             // derived commands that combine another uniform map with this one.
             properties : {
                 initialColor : new Cartesian4(0.0, 0.0, 0.5, 1.0),
+                isFill : false,
                 zoomedOutOceanSpecularIntensity : 0.5,
                 oceanNormalMap : undefined,
                 lightingFadeDistance : new Cartesian2(6500000.0, 9000000.0),
@@ -1997,6 +2001,7 @@ define([
 
             var uniformMapProperties = uniformMap.properties;
             Cartesian4.clone(initialColor, uniformMapProperties.initialColor);
+            uniformMapProperties.isFill = surfaceTile.vertexArray === undefined;
             uniformMapProperties.oceanNormalMap = oceanNormalMap;
             uniformMapProperties.lightingFadeDistance.x = tileProvider.lightingFadeOutDistance;
             uniformMapProperties.lightingFadeDistance.y = tileProvider.lightingFadeInDistance;
diff --git a/Source/Scene/QuadtreePrimitive.js b/Source/Scene/QuadtreePrimitive.js
index 2997f2358be3..005eeead955d 100644
--- a/Source/Scene/QuadtreePrimitive.js
+++ b/Source/Scene/QuadtreePrimitive.js
@@ -817,7 +817,7 @@ define([
 
                     tile._lastSelectionResult = TileSelectionResult.RENDERED;
 
-                    // EXCEPT if we're waiting heaps of descendants, the above will take too long. So in that case,
+                    // EXCEPT if we're waiting on heaps of descendants, the above will take too long. So in that case,
                     // load this tile INSTEAD of loading any of the descendants, and tell the up-level we're only waiting
                     // on this tile.
                     var wasRenderedLastFrame = tile._frameRendered === primitive._lastSelectionFrameNumber;
diff --git a/Source/Shaders/GlobeFS.glsl b/Source/Shaders/GlobeFS.glsl
index b11715a13e96..6b9190d103cd 100644
--- a/Source/Shaders/GlobeFS.glsl
+++ b/Source/Shaders/GlobeFS.glsl
@@ -1,5 +1,6 @@
 //#define SHOW_TILE_BOUNDARIES
 uniform vec4 u_initialColor;
+uniform bool u_isFill;
 
 #if TEXTURE_UNITS > 0
 uniform sampler2D u_dayTextures[TEXTURE_UNITS];
@@ -249,6 +250,11 @@ void main()
     }
 #endif
 
+    if (u_isFill)
+    {
+        finalColor = vec4(mix(vec3(1.0, 0.0, 0.0), finalColor.rgb, 0.25), finalColor.a);
+    }
+
 #ifdef FOG
     const float fExposure = 2.0;
     vec3 fogColor = v_mieColor + finalColor.rgb * v_rayleighColor;