layer.originZ < number>

Sets the z origin for 3D transformations. The origin is defined in pixels. Positive values bring 3D layers closer to you, and negative values further way.
译：设置3D转换的Z原点。以像素为单位定义的。正的价值观带来的3D层更接近你，和负值进一步。

layerA = new Layer
    originZ: -45
    rotationY: 90