From 3ac3568b26f11b06c470fef3392ee1c321fc1922 Mon Sep 17 00:00:00 2001
From: Dan Bagnell <daniel.p.bagnell@gmail.com>
Date: Mon, 9 May 2016 15:26:42 -0400
Subject: [PATCH] Fix failing sun tests with WebGL validation on.

---
 Source/Scene/Sun.js            | 2 +-
 Source/Scene/SunPostProcess.js | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/Source/Scene/Sun.js b/Source/Scene/Sun.js
index 6837cc21e2db..628a4c233386 100644
--- a/Source/Scene/Sun.js
+++ b/Source/Scene/Sun.js
@@ -178,7 +178,7 @@ define([
             this._glowFactorDirty = false;
 
             var size = Math.max(drawingBufferWidth, drawingBufferHeight);
-            size = Math.pow(2.0, Math.ceil(Math.log(size) / Math.log(2.0)) - 2.0);
+            size = Math.max(1.0, Math.pow(2.0, Math.ceil(Math.log(size) / Math.log(2.0)) - 2.0));
 
             this._texture = new Texture({
                 context : context,
diff --git a/Source/Scene/SunPostProcess.js b/Source/Scene/SunPostProcess.js
index 1dd0304ef198..67b79a48f9f5 100644
--- a/Source/Scene/SunPostProcess.js
+++ b/Source/Scene/SunPostProcess.js
@@ -215,7 +215,7 @@ define([
 
         var downSampleWidth = Math.pow(2.0, Math.ceil(Math.log(width) / Math.log(2)) - 2.0);
         var downSampleHeight = Math.pow(2.0, Math.ceil(Math.log(height) / Math.log(2)) - 2.0);
-        var downSampleSize = Math.max(downSampleWidth, downSampleHeight);
+        var downSampleSize = Math.max(1.0, Math.max(downSampleWidth, downSampleHeight));
 
         var downSampleViewport = downSampleViewportBoundingRectangle;
         downSampleViewport.width = downSampleSize;