但是在webgl的情况下，同样的设置，个数计算明显不对，颜色也存在很大差异，相比 canvas情况下颜色更接近设置的
(function()
{
	var Stage            = Laya.Stage;
	var Loader           = Laya.Loader;
	var Particle2D       = Laya.Particle2D;
	var Browser          = Laya.Browser;
	var Handler          = Laya.Handler;
	var Stat             = Laya.Stat;
	var WebGL            = Laya.WebGL;

	var sp;

	(function()
	{
		// 不支持WebGL时自动切换至Canvas
		Laya.init(Browser.clientWidth, Browser.clientHeight, WebGL);

		Laya.stage.alignV = Stage.ALIGN_MIDDLE;
		Laya.stage.alignH = Stage.ALIGN_CENTER;

		Laya.stage.scaleMode = "showall";
		Laya.stage.bgColor = "#232628";

		Stat.show();

		Laya.URL.basePath += "../../";
		Laya.loader.load("res/particles/GravityMode.part", Handler.create(this, onAssetsLoaded), null, Loader.JSON);
	})();

	function onAssetsLoaded(settings)
	{
	    data = {
  "minStartColor": {
    "0": 1,
    "1": 0,
    "2": 0,
    "3": 1
  },
  "boxEmitterVelocity": {
    "0": 0,
    "1": 0,
    "2": 0
  },
  "minHorizontalStartRadian": 0,
  "positionVariance": {
    "0": 0,
    "1": 0,
    "2": 0
  },
  "maxHorizontalVelocity": 0,
  "sphereEmitterRadius": 1,
  "backColor": "#000000",
  "minRotateSpeed": 0,
  "gravity": {
    "0": 0,
    "1": 0,
    "2": 0
  },
  "maxColor": {
    "0": 0.57,
    "1": 1,
    "2": 0,
    "3": 1
  },
  "emitterVelocitySensitivity": 1,
  "minStartSize": 4.79,
  "duration": 11.69,
  "sphereEmitterVelocity": 0,
  "minStartRadius": 0,
  "disableColor": true,
  "boxEmitterSize": {
    "0": 0,
    "1": 0,
    "2": 0
  },
  "pointEmitterVelocityAddVariance": {
    "0": 0,
    "1": 0,
    "2": 0
  },
  "maxHorizontalStartRadian": 0,
  "maxEndSize": 0,
  "maxEndColor": {
    "0": 0,
    "1": 1,
    "2": 0,
    "3": 1
  },
  "maxHorizontalEndRadian": 0,
  "maxStartSize": 27.79,
  "ringEmitterVelocityAddVariance": 0,
  "blendState": 1,
  "useEndRadian": true,
  "pointEmitterPositionVariance": {
    "0": 0,
    "1": 0,
    "2": 0
  },
  "minVerticalEndRadian": 11.14,
  "maxRotateSpeed": 0,
  "ringEmitterUp": 2,
  "ringEmitterRadius": 30,
  "minEndSize": 11.69,
  "sphereEmitterCenterPosition": {
    "0": 0,
    "1": 0,
    "2": 0
  },
  "maxVerticalEndRadian": 20.42,
  "pointEmitterVelocity": {
    "0": 0,
    "1": 0,
    "2": 0
  },
  "maxPartices": 100,
  "minVerticalStartRadian": 0,
  "sphereEmitterVelocityAddVariance": 0,
  "maxVerticalVelocity": -30,
  "minEndRadius": 0,
  "maxStartRadius": 0,
  "minEndColor": {
    "0": 0,
    "1": 1,
    "2": 0,
    "3": 1
  },
  "textureFileName": "comp\\clip_num.png",
  "emissionRate": 0,
  "minHorizontalVelocity": 0,
  "emitterType": "null",
  "textureCount": 1,
  "minVerticalVelocity": 0,
  "boxEmitterVelocityAddVariance": {
    "0": 0,
    "1": 0,
    "2": 0
  },
  "ringEmitterCenterPosition": {
    "0": 0,
    "1": 0,
    "2": 0
  },
  "maxVerticalStartRadian": 0,
  "ageAddScale": 3.26,
  "maxStartColor": {
    "0": 1,
    "1": 0,
    "2": 0,
    "3": 1
  },
  "minColor": {
    "0": 0.15,
    "1": 0.92,
    "2": 0.91,
    "3": 0.6000000238
  },
  "ringEmitterVelocity": 0,
  "textureName": "https://s2.d2scdn.com/2018/01/09/FpVDXtwYTCx9Fy9t7OvXP912hs_P.jpg",
  "minHorizontalEndRadian": 0,
  "boxEmitterCenterPosition": {
    "0": 0,
    "1": 0,
    "2": 0
  },
  "pointEmitterPosition": {
    "0": 0,
    "1": 0,
    "2": 0
  },
  "colorComponentInter": false,
  "endVelocity": 1,
  "maxEndRadius": 0
}
		sp = new Particle2D(data);
		sp.emitter.start();
		sp.play();
		Laya.stage.addChild(sp);

		sp.x = Laya.stage.width / 2;
		sp.y = Laya.stage.height / 2;
	}
})();
canvas 和webgl 自行切換