diff --git a/indra/newview/llfloaternewfeaturenotification.cpp b/indra/newview/llfloaternewfeaturenotification.cpp
index 3a2035b9b91ce7ca00053da7743b1e4cf866a81d..1e5002496744298a6afdda57d09e95bf958886ae 100644
--- a/indra/newview/llfloaternewfeaturenotification.cpp
+++ b/indra/newview/llfloaternewfeaturenotification.cpp
@@ -50,6 +50,13 @@ BOOL LLFloaterNewFeatureNotification::postBuild()
     getChild<LLUICtrl>(title_txt)->setValue(getString(title_txt + feature));
     getChild<LLUICtrl>(dsc_txt)->setValue(getString(dsc_txt + feature));
 
+    if (getKey().asString() == "gltf")
+    {
+        LLRect rect = getRect();
+        // make automatic?
+        reshape(rect.getWidth() + 90, rect.getHeight() + 45);
+    }
+
     return TRUE;
 }
 
diff --git a/indra/newview/llpanelface.cpp b/indra/newview/llpanelface.cpp
index 8f09136ccfd73967f210152e99a30f5a11b729bf..b502fa3546d9a73935472525abc6a3ca6c153f61 100644
--- a/indra/newview/llpanelface.cpp
+++ b/indra/newview/llpanelface.cpp
@@ -492,6 +492,15 @@ LLPanelFace::~LLPanelFace()
     unloadMedia();
 }
 
+void LLPanelFace::onVisibilityChange(BOOL new_visibility)
+{
+    if (new_visibility)
+    {
+        gAgent.showLatestFeatureNotification("gltf");
+    }
+    LLPanel::onVisibilityChange(new_visibility);
+}
+
 void LLPanelFace::draw()
 {
     updateCopyTexButton();
diff --git a/indra/newview/llpanelface.h b/indra/newview/llpanelface.h
index d07be2e4b45e0d823313624cfb8b20b0bdee05b0..d36662c11bb46d969f6daa524342416d17c46881 100644
--- a/indra/newview/llpanelface.h
+++ b/indra/newview/llpanelface.h
@@ -109,6 +109,7 @@ class LLPanelFace : public LLPanel
 
     static void onMaterialOverrideReceived(const LLUUID& object_id, S32 side);
 
+    /*virtual*/ void onVisibilityChange(BOOL new_visibility);
     /*virtual*/ void draw();
 
 	LLMaterialPtr createDefaultMaterial(LLMaterialPtr current_material)
diff --git a/indra/newview/skins/default/xui/en/floater_new_feature_notification.xml b/indra/newview/skins/default/xui/en/floater_new_feature_notification.xml
index 5f0eeab71c42cb6fc9b21a8c2fda652e8e1fe1ec..c8726d36b44d2b8e81590561ba4bf31bdfd4594d 100644
--- a/indra/newview/skins/default/xui/en/floater_new_feature_notification.xml
+++ b/indra/newview/skins/default/xui/en/floater_new_feature_notification.xml
@@ -20,6 +20,15 @@ New inventory features
 You can now add preview images to inventory items and view a folder in its own window.
 Learn more in this [https://community.secondlife.com/blogs/entry/13637-new-features-inventory-item-preview-and-single-folder-view/ blogpost]
     </floater.string>
+    <floater.string name="title_txt_gltf">
+New GLTF PBR materials support
+    </floater.string>
+    <floater.string name="description_txt_gltf">
+You can now use expanded material support with the ability to import and edit GLTF Physically Based Rendering (PBR) Materials.
+In order to support the addition of the GLTF format, some areas in the viewer may appear darker than usual.
+
+Learn more about [https://wiki.secondlife.com/wiki/PBR_Materials Physically Based Rendering (PBR)]
+    </floater.string>
   <text
    type="string"
    length="1"
@@ -37,7 +46,7 @@ New feature
   <text
    type="string"
    length="1"
-   follows="top|left|right"
+   follows="top|left|right|bottom"
    text_color="White"
    layout="topleft"
    left="10"