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girtab

smoke launch

Hi all I'm working on my central smoke for my rocket launch, bu tI have a problem i Can't have a good result ... If someone can help me 

This is the hip with my method : fumee_mid_help.hip

this is the simulation of all the smoke without the central : 

passworld: smoke

and this is the result of my central for now : mid_big2.jpg

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I think your video is looking really close. I have not reviewed any launch footage recently but I think if you slow it down a bit or add some drag you will increase the perceived scale of the scene. When something is big it usually moves slower.

If you have not checked out the thread on how to avoid the mushroom look when using pyro you might want to check it out.

Edited by Atom
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Thank you Atom I will see the topic and I will be back with some test !

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I think you are pretty close. As Atom suggested I would try to slow it down, so it looks a lot bigger. Also you might want to try to add a lot of detail to the smoke, and breaking up those mushroom clouds. I would suggest you look at the gas disturb micro solver. That can help you with the mushrooms.

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Increased resolution and the right shader settings will go a long ways.

Increase your resolution by decreasing the division size of your smopkeobject. 

When you have honed your sim enough to start rendering be sure to set the volume filter on your geo node to gaussian and adjust the volume filter width as desired when you are rendering. 

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Thank you guys I'm caching my other smoke of my rocket launch but tomorrow I will try that

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On 3/3/2017 at 10:45 PM, Jesper Rahlff said:

I think you are pretty close. As Atom suggested I would try to slow it down, so it looks a lot bigger.

I had to do something similiar and I wondered how fast the clouds are created in reality. In two seconds most of the clouds are created and you see the pulsing power of the thrusters, have a look at this video:

I was not able to simulate this speed in an acceptable quality. My final solution was to simulate in a normal speed and use only every 6th cache frame. The only drawback is that you have to simulate a lot more frames.

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Yo haggi, You make a rocket launch too ?

do you have a playbast ? Can I see your result ?

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Unfortnately it was for an animated movie wich is not yet out, so I'm not allowed to show anything. Sorry.

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