Merge pull request #3905 from AnalyticalGraphicsInc/sun-tests

Fix failing sun tests with WebGL validation on.
CesiumGS · May 9, 2016 · c976592 · c976592
2 parents 36eb270 + 3ac3568
commit c976592
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Showing 2 changed files with 2 additions and 2 deletions.
diff --git 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
@@ -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;