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Hair simulation grass helicopter landing

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Hello guys,

I am trying to recreate a helicopter landing scene on grass.

 

I am new to Houdini and I was trying to use hair and a radial force to create the effect but not really having much good results.

 

Could someone give me some tips on how to achieve the result?

 

Thanks

Luca

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Cool will try and have a look cheers :)

keep you posted with results asap

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It does not seem that I can link this type of volume force to vellum....

 

Will try using a wire solver instead and see how it goes

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I ended up using procedural noise to achieve something similar....but now something I cannot really understand how to do is looping a ramp to keep repeating over time

 

any suggestions?

 

this is the scene:

 

houdini_test_grass_file_scene_v003.hiplc

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just foolin' around with my curveu HDA

Helo.gif

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13 minutes ago, Noobini said:

just foolin' around with my curveu HDA

Helo.gif

How can you control the curves like that????

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just have a look at my HDA video...clearer to see in there

 

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2 minutes ago, Noobini said:

just have a look at my HDA video...clearer to see in there

 

Cool will have a look thanks a lot :)

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I wasn't sure if I'm on the same page with you with the effect, hence I just posted the giphy...if you want my RnD file, just yell. I'm not precious about uploading my files.

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30 minutes ago, Noobini said:

I wasn't sure if I'm on the same page with you with the effect, hence I just posted the giphy...if you want my RnD file, just yell. I'm not precious about uploading my files.

I mean that would be much appriciated since I am on a learning curve looking a experienced people files would definitely help :)

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Posted (edited)

here you are:

- if you're not into crop circles...then simply disable plasticity in vellumhair

- dive inside vellum solver, I've added the popaxisforce which gives you torus shape, I haven't played with it too much, it's there for you to experiment with just enable it, prolly wise to disable the popfan.

(chuck my HDA into C:\Program Files\Side Effects Software\Houdini 18.0.xxx\houdini\otls)

CropCircle.gif

vu_HeloWind.hiplc

Edited by Noobini
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This is super helpful...Now I do understand way more about the solver and the forces affecting the hair.

 

Thanks a lot

Cheers

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7 minutes ago, Atom said:

Here is a slight addition. A downward smoke simulation to emulate ground dust kick up.

helicopter_dust_grass.gif

ap_helicopter_dust_test_10.hipnc

This is awesome thanks a lot for your help guys :)

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why didn't I turn the fan cone upside down ? it's friggin' obvious innit ? might try that.

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7 hours ago, Atom said:

Here is a slight addition. A downward smoke simulation to emulate ground dust kick up.

helicopter_dust_grass.gif

ap_helicopter_dust_test_10.hipnc

was there any toroidal thingie implementation in here ? just trynna look for it

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I've been doing some test with the whole helo landing and stuff but now would be nice to have a sort of concentric force expanding from the position of the helo.

 

A sort of "ripple" in loop

 

Beeing trying with pop forces but failing

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