FX question

 I've been playing around with the FX a bit, and playing with various API scripts like It's a Trap and KABOOM that use the FX.  I've been trying to figure out if it's possible to do an FX that does an implosion rather than an explosion.  All of the examples I've seen are implosions or straight lines away from an object.  I can understand that straight lines to an object would probably be extremely difficult to do and it's probably easier to do something to the object, possibly from some invisible token.  But, implosions seem to me to be a little more straightforward. Does anyone know if implosions are possible and how to do them?  Maybe this could be a feature request, if not?  How many other people would want something like this? Some examples (from D&D): you open a trap door and a telekinetic force pulls you in; or a visual for the Warlock's Grasp of Hadar invocation.

There isn't a way to do this currently.  If you consider how particle systems work, it makes sense.  They usually consist of an emitter, from which particles are spawned with some formula applied to them over time to change them.  The formula usually adjusts the location, but can also adjust the size, shape, color direction, etc.  To do an implosion, you'd need to start a particle effect at some time T in the future, and run it backwards.  Definitely doable, just not done.  I'd suggest a suggestion for this and then post back here with the link to garner support.

I see your point.&nbsp; I know it's doable though because I've seen it elsewhere.&nbsp; For example:&nbsp; <a href="http://factor43.com/projects/tfx/demo/#" rel="nofollow">http://factor43.com/projects/tfx/demo/#</a> &nbsp; Whirlpool Flare 2 certainly gives the illusion of being pulled in rather than being pushed out.&nbsp; But, I will post a suggestion as suggested.

Suggestion posted.&nbsp; If I've done this correctly, the post should be at:&nbsp; <a href="https://app.roll20.net/forum/post/8353242/fx-that-simulates-an-implosion-rather-than-explosion" rel="nofollow">https://app.roll20.net/forum/post/8353242/fx-that-simulates-an-implosion-rather-than-explosion</a> &nbsp;if people want to chime in.