Hi! Does anyone knows how could I make this effect but in reverse so the object appears instead of disappearing? My logic was simply to substract the “disdos” variable instead of adding, but it doesn’t work, maybe because the selection socket doesn’t work with negatives values or something… But idk how to solve this problem.
Thanks in advanced!
sometimes it’s easiest to reverse ‘the footage’ … render it to frames and use those frames in reverse order. 
i know that, but I’m working in a system that manage all this procedurally so I need this to work with geo nodes.
Could you give a bit more context on what you are trying to achieve and why you need to use simulation nodes? Your setup looks too complex for the effect shown in the video, but I suppose there’s a reason for that.
If you need to keep the current setup how about simply adding a boolean not to the selection? or using a separate geometry instead of a delete one and using the output that suits your needs.
What im trying to do basically this
prueba humo gn0001-1000.mkv (2.4 MB)
but backwards. I have the system for doing what is shown in the video so i need to reverse it. So what i want is to morph a bunch of points into a mesh (in this case an icosphere) but i want the mesh to gradually appear when the smoke starts “creating it” so to speak, and i also need the smoke to appear gradually. If I could invert the selection of the delete geometry I would basically solve both problems.
prueba humo gn0001-0109.mkv (1.2 MB)
I have tried using the boolean not but it didn’t work 
I gave up on that idea and ended up using a set radius node. It worked!
