Thank you for making this for 4.x Great work!
Could i ask you to add option for how much snow it keeps on bottom? If i remember right, in the .js file there was option for it when i used this in some project.
I think it was these two options:
this.snowStick = true; // Whether or not snow should "stick" at the bottom. When off, will never collect.
this.useMeltEffect = true; // When recycling fallen snow (or rarely, when falling), have it "melt" and fade out if browser supports it
I would like it to pile up some amount of snow before removing it.
Thanks a lot again