/************************************************************** * Spline 3D curve **************************************************************/ THREE.SplineCurve3 = THREE.Curve.create( function ( points /* array of Vector3 */) { console.warn( 'THREE.SplineCurve3 will be deprecated. Please use THREE.CatmullRomCurve3' ); this.points = ( points == undefined ) ? [] : points; }, function ( t ) { var points = this.points; var point = ( points.length - 1 ) * t; var intPoint = Math.floor( point ); var weight = point - intPoint; var point0 = points[ intPoint == 0 ? intPoint : intPoint - 1 ]; var point1 = points[ intPoint ]; var point2 = points[ intPoint > points.length - 2 ? points.length - 1 : intPoint + 1 ]; var point3 = points[ intPoint > points.length - 3 ? points.length - 1 : intPoint + 2 ]; var vector = new THREE.Vector3(); vector.x = THREE.Curve.Utils.interpolate( point0.x, point1.x, point2.x, point3.x, weight ); vector.y = THREE.Curve.Utils.interpolate( point0.y, point1.y, point2.y, point3.y, weight ); vector.z = THREE.Curve.Utils.interpolate( point0.z, point1.z, point2.z, point3.z, weight ); return vector; } );