Merge pull request cedricpinson#985 from cedricpinson/bug/camera-x-al…

…ign_D3D-4481 Fixes 0 division when camera is aligne on the x axis
metrowave · Jul 18, 2018 · 02a0ae2 · 02a0ae2
2 parents 856e44d + 2a394a3
commit 02a0ae2
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/sources/osgGA/OrbitManipulator.js b/sources/osgGA/OrbitManipulator.js
@@ -251,6 +251,9 @@ utils.createPrototypeObject(
 
             return function(dx, dy) {
                 var prevPitch = Math.atan(-this._rotation[6] / this._rotation[5]);
+                if (isNaN(prevPitch)) {
+                    prevPitch = 0.0;
+                }
                 var pitch = this._computePitch(prevPitch, dy);
 
                 var deltaYaw = dx / 10.0;