06-02-2015, 08:02 PM
Hi,
With further testing, I am noticing a very strange behaviour in the simulation that I cannot understand: in the test case I've described in my first email (i.e. just an emitter, and a rotating field that imitates a tornado vortex), when I initially run the simulation, the effect of the vortex field is obvious (i.e. you can see clearly a rotating smoke), however the more the simulation runs, the less effect of the vortex becomes! meaning, initially all smoke is rotating nicely around the vortex axis (frame 0 to 160), then I get some sort of a steady state (for let's say 60 frames), then around frame 220 smoke slows down as if there is no vortex and the volume of smoke changes shape and gets shrunk and disappear?
Now my question: how to debug this behavior? I've used blocking/non-blocking/field advection/etc. but nothing has changed. Also, I've turned on velocity visualization but the only thing I was able to see clearly is how fast/slow velocity vectors are, but it did not help me much. Logically speaking, I still have the emitter, the vortex, so why at the end smoke disappears and shrink that much?
Thanks in advance,
With further testing, I am noticing a very strange behaviour in the simulation that I cannot understand: in the test case I've described in my first email (i.e. just an emitter, and a rotating field that imitates a tornado vortex), when I initially run the simulation, the effect of the vortex field is obvious (i.e. you can see clearly a rotating smoke), however the more the simulation runs, the less effect of the vortex becomes! meaning, initially all smoke is rotating nicely around the vortex axis (frame 0 to 160), then I get some sort of a steady state (for let's say 60 frames), then around frame 220 smoke slows down as if there is no vortex and the volume of smoke changes shape and gets shrunk and disappear?
Now my question: how to debug this behavior? I've used blocking/non-blocking/field advection/etc. but nothing has changed. Also, I've turned on velocity visualization but the only thing I was able to see clearly is how fast/slow velocity vectors are, but it did not help me much. Logically speaking, I still have the emitter, the vortex, so why at the end smoke disappears and shrink that much?
Thanks in advance,