wateryfield Posted August 16, 2015 Share Posted August 16, 2015 Hi,guys. Recently, i want built a tornado like pyro, a huge storm. The image come form man of steel,Alexander Lombardi Fx Reel ,https://vimeo.com/84196857 Before it , i have to list a better way to drive smoke rotate. So there is a simple test which include a tube source and a vortex force, i'm just add the vortex to the vel filed, after a while, you can see the smoke looks like a dish. I don't know if it was a nature shape, most like the air in middle was all been push out, so the air on top and bottom be attract in. So i have to find a way to disturbance to vel, first i want do it by pressure, high pressure air flow to low pressure lead to a wind, is it right? So i inject a custom pressure field, i not clear with how pressure working in pyro, i can export the pressure filed or modify it, but the pyro simulate not change at all, even i set the pressure to 0. Second way i modify the vel field directly, at the few frame of beginning, the vel field was direct to middle soon, i built a gradient field of the vel.y , if it great a value, then slow down the vel, it clamp the vel totally, although the smoke not rotate crazy, but it also lose the nature detail. I will keep optimize the second way. If anyone lead me a better way to built the tornado storm, or explain me how pressure working will be great. Thanks. pyro_pressure.hip Quote Link to comment Share on other sites More sharing options...
3iart Posted August 17, 2015 Share Posted August 17, 2015 have you looked at this thread? http://forums.odforce.net/topic/17056-tornado/?hl=tornado Quote Link to comment Share on other sites More sharing options...
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