CatCulRomCurve3 is used to create a smooth declined curve path between 2 or even more than 2 given points in 3D environment.

## Let's see How to implement THREE.CatCulRomCurve3.

var point = []; point.push([1,0,1], [1,0,-1] , [-1,0,-1], [-1,0,1]); const curve = new THREE.CatmullRomCurve3( point.map((e)=>{ return new THREE.Vector3(e[0], e[1],e[2]) }) ); curve.closed = !false; curve.tension = .1;CalmulRomCurve3 constructor take an Array of three dimensional points, more than 2. In above example I have taken 4 points to create square like paths.

point.map creates an new Array with given 4 points.

### CatmullRomCurve3.getPoint( int : division );

var vertices = []; curve.getPoints(100).forEach((e)=>{ vertices.push( e.x, e.y, e.z ); });CatmulRomCurves.getPoints( int : division) method returns Array of point accordingly division value. More division value give your path smooth curves at corner.

vertices array is used for geometry's position attribute.

var geometry = new THREE.BufferGeometry(); geometry.setAttribute( 'position', new THREE.Float32BufferAttribute( vertices, 3 ) ); var material = new THREE.LineBasicMaterial({}); const curveObject = new THREE.Line( geometry, material ); //Adding to Scene s.add(curveObject);Explanation : ... updating

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