question of tornado

can i ask when an object is sucked by a tornado, cant it be sucked into the center of it? Or does it get thrown out at some point

I think this picture is the answer:

"imho"
1) idk in "your" cause it would make not much sense =)
2) hmmm it's relative i think if force is constant it will nothing happen or better to say... see the satelites in earth orbit the are on some point there they can surround the earth allmost not losing it's heigh. the same is with tornados xD

i would realse it via spining object which has a sucking (xD lol) force something like yours homing missle stuff. dunno it's not really correct but would look nice ^^
i will draw it...
__\__o__/
___\_o_/
____\o/
-_-_-o

see o = object and it's has a radious of spinning. so if some object is too near to it it will be under the influence of it =)
but basicaly you also need some force which will suck it IN (to this spinnig crap) after it will "get it" and begin to move around (smooth) and (the feature) if you will STOP this all forces tornado is X_X the object will continue fly on the last direction vector. imho allmost realistic =)
you could ofc make it more complicated ^^ (this is my logical solution)

hmm i have thinked about it again and it seems to work well cause this spinning crap "balls" have a area of effect so if the object will be too fast it will simple fly away =) so... it's almost realistick ^^

dunno to think self about the problem is much more fun ^^ than simple too ask.
// :pontuetsa: (xD) i have managed to create a collision alg which will act on any object speed. ^^ and it's not really a performance eating monster.

// btw does MaDOS handle such things ?

The best looking tornado is created by periodically using GroupEnum then adding velocity toward the origin point of the tornado, offset by several degrees on the angle and pitch. Over time that offset creates a very natural looking rotation.

If this is for your object engine, I'll just make a quick note...

Tornadoes in the NORTHERN hemisphere have a counter clockwise spin.
Tornadoes in the SOUTHERN hemisphere (which we like to call cyclones) have a clockwise spin.

This could probably be done easily through the use of turning one number negative...

Making the angle offset negative would reverse the rotation.

yes i was thinking of grim's method. but hmm... the tornado is actually spinning, so if i add a tangential force to the objects too (in addition to centripental), then it will be ok too i think

NO!!!!
Typhoons Occur in the Pacific Ocean
Hurricanes occur in the Atlantic Ocean
and Cyclones occur in the Indian Ocean.
Tornadoes are not any of these.
Tornadoes are generally smaller(altough they can have faster winds) and only occur over land while Typhoons/Hurricanes/Cyclones occur over ocean

The one time I take a text book's word for something it's completely wrong.

I was also referring to cyclonic force which goes in a particular direction (according to wikipedia...)

Cyclones go inland in Australia.
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Centripetal force has NOTHING to do with tornadoes! It's vacuums and convection currents! It is a coincidence that they happen to do the same things!

However you could probably just use centripetal force for that...

Just wondering, I'm taking up computer sciences because I like creating virtual worlds, but what will the formula for this look like?

You and your anti-centripetal force, Tide-Arc...

well we dont have air inside wc3 so we need to give ti a force :)

Objects shouldn't get thrown out. Take for example, the Cow King spun by the tornado, he would keep spinning until either the tornado dies or he farts so strong that it creates a sort of nitrous boost that's stronger than the force of the tornado, thereby hurling him away.

http://www.psc.edu/research/graphics...y/tornado.html
http://access.ncsa.uiuc.edu/Stories/...ster/index.htm

A couple visual simulations of tornadoes. Objects should be ejected if their momentum is enough to over-come the pull of the tornado. Also, objects which reach the top of the tornado are ejected.