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zglynn

Smoke Effects

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Hey all,

On Houdini's website they have the Rocket Launch demo with this really beautiful smoke hitting the ground and billowing outward. I am trying to create a similar effect using the pyro tools for a student film that I'm working on, but I just can't get the smoke to spread out like it does in the rocket launch demo. I tried messing with a lot of stuff, but my smoke alway looks like this... (see mySmoke image)

...and I want it to look like this... (see goalSmoke image)

Any ideas?

-Zach

post-4820-126361376157_thumb.jpg

post-4820-126361377634_thumb.jpg

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Here are some ideas for you:

Using a magnet force to direct the smoke.

Creating your own velocity fields to direct the smoke. Look into Peter Claes thesis(search). There are some good tips there.

Creating two simulations, one for the downward exhaust from the rocket and one for the pyroclastic ground smoke.

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build tangents in SOP, and import them in DOP use Gas Partikle to Field DOP to create velosity field...

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It is universal method for creating custom, arbitrary vector fields. You can this doing through metabols transfer, but using Gas Partikle to Field DOP and tangents, it faster

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Igor

You are the man! That is exactly what I was wanting to do. Thanks a lot. I'll be sure to post my progress.

Thanks again,

Zach

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I'm glad if it information was been useful. I am also very interested sort out in such processes :rolleyes:

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