if (mPath.size() > 1)
            {
                ESM::Pathgrid::Point secondNode = *(++mPath.begin());
                osg::Vec3f firstNodeVec3f = MakeOsgVec3(mPathgrid->mPoints[startNode]);
                osg::Vec3f secondNodeVec3f = MakeOsgVec3(secondNode);
                osg::Vec3f toSecondNodeVec3f = secondNodeVec3f - firstNodeVec3f;
                osg::Vec3f toStartPointVec3f = startPointInLocalCoords - firstNodeVec3f;
                if (toSecondNodeVec3f * toStartPointVec3f > 0)
                {
                    ESM::Pathgrid::Point temp(secondNode);
                    converter.toWorld(temp);
                    bool isPathClear = !MWBase::Environment::get().getWorld()->castRay(startPoint.mX, startPoint.mY, startPoint.mZ, temp.mX, temp.mY,temp.mZ);
                    if (isPathClear)
                        mPath.pop_front();
                }
            }