Math

Sphere

        let radius = 200;
        let separation = 10;

        for ( var s = 0; s <= 180; s+=separation ) {

            var radianS = s*Math.PI / 180;
            var pZ = radius * Math.cos(radianS);
          
            for ( var t = 0; t < 360; t+=separation ) {

              var radianT = t*Math.PI / 180;
              var pX = radius* Math.sin(radianS) * Math.cos(radianT);
              var pY = radius* Math.sin(radianS) * Math.sin(radianT);
          
              let date = { 
                    point: { x: pX, y: pY, z: pZ },
                    stars: [{ x: 0, y: 0, z: 0 },{ x: 0, y: 0, z: 0 }] 
                };
                this.memory_stars.push( date );
            }
          
        }