babylon.js ステップ3　線Lineを使ったいろいろな形状を表示

いろいろな形状シリーズです。

いきましょう！

線

	//Array of points to construct lines
	var myPoints = [
		new BABYLON.Vector3(0, 0, 0),
		new BABYLON.Vector3(0, 1, 1),
		new BABYLON.Vector3(0, 1, 0)
	];
	
	//Create lines 
	var lines = BABYLON.MeshBuilder.CreateLines("lines", {points: myPoints}, scene);

BABYLON.Vector3型で繋いでいきます

f:id:hollywis:20200619142450p:plain

Babylon.js Playground

螺旋

f:id:hollywis:20200619142758p:plain

　//Array of points to construct a spiral with lines
　var myPoints = [];

    var deltaTheta = 0.1;
    var deltaY = 0.005;

    var radius = 1;
    var theta = 0;
    var Y = 0;
    for (var i = 0; i<400; i++) {
        myPoints.push(new BABYLON.Vector3(radius * Math.cos(theta), Y, radius * Math.sin(theta)));
        theta += deltaTheta;
        Y += deltaY
    }
	
　//Create lines 
　var lines = BABYLON.MeshBuilder.CreateLines("lines", {points: myPoints}, scene);

線400個を螺旋状に繋いでグルグルな物も作れます