sketch particles 2005-05-05 - By matt hollingsworth
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Hey Kim,
Makes sense. I was getting used to Maya's turbulence, then realized
that XSI's is just wind with eddys. But, would like to set the intial
state, create a cloud from that initial state that does NOT transfer the
velocity from my sketch, then have any and all forces work on it. It's
a cool tool, but if I can't use all the goodies without having my sketch
speed transferred, that ain't gonna do me a lot of good on what I'm
working onat the moment. Probably will for other things, jsut not this
particular thing. I tried various ways of getting a cloud out of there
with a neautrel initial state but had no luck. Any ideas?
thansk Kim. Your stuff online, particularly your noise videos, helped
me a lot a while back and I appreciate it.
cheers,
-M
kim aldis wrote:
>Probably because turbulence is built to affect velocity - he says, stating
>the obviuous ;). Or possibly that the force of the turbulence is
>proportional to the velocity, rather as drag would be.
>
>One of my big beefs about particles is that there's no logic or information
>about what forces affect what properties of particles. In my book a force is
>something that affects acceleration - F=Ma - the acceleration percolating
>down through velocity and finally position. I couldn't say for sure but I'm
>guessing this may not always be the case.
>
>
>
>>-- --Original Message-- --
>>From: owner-xsi@(protected)
>>[mailto:owner-xsi@(protected)] On Behalf Of Matt Hollingsworth
>>Sent: 28 April 2005 17:35
>>To: XSI@(protected)
>>Subject: Re: sketch particles
>>
>>Hmm. Thanks, I'll check on that. But, if this _is_ the
>>case, then wodnering why turbulence and eddy work but not the
>>vortex. I was udner the impression that the velocity setting
>>is entirely to allow it to transfer velocity from your stroke
>>during sketching. Is this not the case?
>>
>>Thanks for the idea.
>>
>>-M
>>
>>Dan Yargici wrote:
>>
>>
>>
>>>If the velocity is at 0 then the forces have nothing to
>>>
>>>
>>affect! Try
>>
>>
>>>entering 0.001 or something.
>>>
>>>DAN
>>>
>>>
>>>Matt Hollingsworth wrote:
>>>
>>>
>>>
>>>>Curiosity!
>>>>
>>>>Anybody use sketch particles much?
>>>>
>>>>I've sketched some particles, created an initial state from them,
>>>>then created a new cloud from that initial state. Live
>>>>
>>>>
>>forever, no
>>
>>
>>>>velocity transfer. THen I jsut wanna apply some forces.
>>>>I cannot get the vortex to work. I crank it up as high as
>>>>
>>>>
>>it will go
>>
>>
>>>>and nothing. The eddy works fine, but not the vortex.
>>>>
>>>>
>>Weird. Under
>>
>>
>>>>the PType's enviro settings, vortex is not disabled or
>>>>
>>>>
>>turned down or
>>
>>
>>>>anything.
>>>>Any ideas?
>>>>
>>>>Seems like a pretty cool tool, if a bit rough around the edges.
>>>>
>>>>best,
>>>>
>>>>-Matt
>>>>
>>>>
>>>>
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>
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