diff --git a/examples/SharedMemory/PhysicsDirect.cpp b/examples/SharedMemory/PhysicsDirect.cpp
index ed8376c9f..e49784d47 100644
--- a/examples/SharedMemory/PhysicsDirect.cpp
+++ b/examples/SharedMemory/PhysicsDirect.cpp
@@ -64,9 +64,15 @@ struct PhysicsDirectInternalData
 	PhysicsDirectInternalData()
 		:m_hasStatus(false),
 		m_verboseOutput(false),
+		m_cachedCameraPixelsWidth(0),
+		m_cachedCameraPixelsHeight(0),
+		m_commandProcessor(NULL),
 		m_ownsCommandProcessor(false),
 		m_timeOutInSeconds(1e30)
 	{
+		memset(&m_command, 0, sizeof(m_command));
+		memset(&m_serverStatus, 0, sizeof(m_serverStatus));
+		memset(m_bulletStreamDataServerToClient, 0, sizeof(m_bulletStreamDataServerToClient));
 	}
 };
 
diff --git a/examples/SharedMemory/TinyRendererVisualShapeConverter.cpp b/examples/SharedMemory/TinyRendererVisualShapeConverter.cpp
index f076d301e..143c931ce 100644
--- a/examples/SharedMemory/TinyRendererVisualShapeConverter.cpp
+++ b/examples/SharedMemory/TinyRendererVisualShapeConverter.cpp
@@ -177,7 +177,7 @@ void convertURDFToVisualShape(const UrdfShape* visual, const char* urdfPathPrefi
 	visualShapeOut.m_dimensions[0] = 0;
 	visualShapeOut.m_dimensions[1] = 0;
 	visualShapeOut.m_dimensions[2] = 0;
-	visualShapeOut.m_meshAssetFileName[0] = 0;
+	memset(visualShapeOut.m_meshAssetFileName, 0, sizeof(visualShapeOut.m_meshAssetFileName));
 	if (visual->m_geometry.m_hasLocalMaterial) {
 		visualShapeOut.m_rgbaColor[0] = visual->m_geometry.m_localMaterial.m_matColor.m_rgbaColor[0];
 		visualShapeOut.m_rgbaColor[1] = visual->m_geometry.m_localMaterial.m_matColor.m_rgbaColor[1];
diff --git a/src/BulletCollision/CollisionShapes/btSphereShape.h b/src/BulletCollision/CollisionShapes/btSphereShape.h
index b192efeeb..50561f7f5 100644
--- a/src/BulletCollision/CollisionShapes/btSphereShape.h
+++ b/src/BulletCollision/CollisionShapes/btSphereShape.h
@@ -29,8 +29,11 @@ public:
 	btSphereShape (btScalar radius) : btConvexInternalShape ()
 	{
 		m_shapeType = SPHERE_SHAPE_PROXYTYPE;
+		m_localScaling.setValue(1.0, 1.0, 1.0);
+		m_implicitShapeDimensions.setZero();
 		m_implicitShapeDimensions.setX(radius);
 		m_collisionMargin = radius;
+		m_padding = 0;
 	}
 	
 	virtual btVector3	localGetSupportingVertex(const btVector3& vec)const;