Add a default constructor to PickResult to avoid brittle instatiation.

library/PolyVoxCore/include/PolyVoxCore/Picking.h

@@ -33,6 +33,7 @@ namespace PolyVox
 	 */
 	struct PickResult
 	{
+		PickResult() : didHit(false) {}
 		bool didHit; ///< Did the picking operation hit anything
 		Vector3DInt32 hitVoxel; ///< The location of the solid voxel it hit
 		Vector3DInt32 previousVoxel; ///< The location of the voxel before the one it hit

library/PolyVoxCore/include/PolyVoxCore/Picking.inl

@@ -42,7 +42,7 @@ namespace PolyVox
 		public:
 			RaycastPickingFunctor(const typename VolumeType::VoxelType& emptyVoxelExample)
 				:m_emptyVoxelExample(emptyVoxelExample)
-				,m_result{false}
+				,m_result()
 			{
 			}