[LayaAir3]创建自由光源，形状是否有错误？
demo里，有两种创建自由光的代码片段，多边形的点围成的多边形应该是一样的，为什么创建的光源范围不一样？是存在BUG还是理解上有偏差？希望官方解答一下。
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DC
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let freelightLayer = new Laya.Sprite();
freelightLayer.x = startX + gap * 2;
freelightLayer.y = startY + gap * 2;
this.owner.addChild(freelightLayer);
let freeStartX = 0;//startX + gap * 2;
let freeStartY = 0;//startY + gap * 2;
let freeformLight2D = freelightLayer.addComponent(Laya.FreeformLight2D);
freeformLight2D.color = new Laya.Color(1, 1, 1, 1);
freeformLight2D.intensity = 1;
freeformLight2D.falloffRange = 0.5;
let polygon = new Laya.PolygonPoint2D();
polygon.addPoint(freeStartX - gap, freeStartY - gap);
polygon.addPoint(freeStartX + gap, freeStartY - gap);
polygon.addPoint(freeStartX + gap, freeStartY + gap);
polygon.addPoint(freeStartX - gap, freeStartY + gap);
freeformLight2D.polygonPoint = polygon;
//创建自由光代码片段2
let freelightLayer = new Laya.Sprite();
this.owner.addChild(freelightLayer);
let freeStartX = startX + gap * 2;
let freeStartY = startY + gap * 2;
let freeformLight2D = freelightLayer.addComponent(Laya.FreeformLight2D);
freeformLight2D.color = new Laya.Color(1, 1, 1, 1);
freeformLight2D.intensity = 1;
freeformLight2D.falloffRange = 0.5;
let polygon = new Laya.PolygonPoint2D();
polygon.addPoint(freeStartX - gap, freeStartY - gap);
polygon.addPoint(freeStartX + gap, freeStartY - gap);
polygon.addPoint(freeStartX + gap, freeStartY + gap);
polygon.addPoint(freeStartX - gap, freeStartY + gap);
freeformLight2D.polygonPoint = polygon;
LayaAir小牛
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