Replicating a simple version of a massive explosion

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I was wondering whats a good starting point for creating an explosion that behaves in this way. Im not looking to build anything massive but more like a simple network to mimic the basic movements that we see here. You can see that the smoke kinda curls up into a ball after the explosion as it goes up and similar movement happens on the floor as well inverted. Any pointers/thoughts on where i should start?

http://www.artbeats.com/clips/RE107/NTSC [artbeats.com]
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I'd suggest you start with the explosion shelf tool,
some pointers would be to animate the fuel source (high amount of fuel on the first couple of frames then animate to 0), also, to create that swirling look and to break up the surface you can scatter points on the surface of the density field and have them add to the divergence field.
There's lots of threads on how to achieve this kind of effect, search on the forums, especially on odforce.net

cheers,

Manu
http://vimeo.com/user2522760 [vimeo.com]
http://stormbornvfx.com/ [stormbornvfx.com]
Manuel Tausch
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