Example

let volumeMesh = new THING.VolumeMesh({
	data: {
		position: [x, y, z, x1, y1, y2, .... ],
		index: [1 ,2, 3, ...]
	},
	alphaThreshold: 0.1,
	opacity: 0.5,
	unitDistanceOpacity: 0.1,
	mixType: 'mix',
	colorRampTexture: new THING.ImageTexture({ url: 'http://xxx.png' }),
	ValueAffectsOpacity: true,
	volumeSize: [x, y, z],
	volumeOffset: [x, y, z],
	volumeRotation: [x, y, z],
	particleRadius: 0.7,
	particleDensity: 1.6,
	isParticleBased: true
});