Miniature explosions at 120fps

[JanneJansson]

Hi,

Last night we where out and shoot small explosions at 120 fps for compositing in to a 3D animation. Here is a clip with some of them.

http://pyro.sfe.se/

Cheers

 

[Charles Angus]

But is it more fun than particle animation?

Just kidding- that was cool stuff. I would say it all looked pretty large scale, except for residual fire on the ground after the main explosion, but that would be easy to work around.

 

[JanneJansson]

Yes very fun shooting : )
For the final comp, I'll do some fluid dynamic smoke in maya to get the large scale effect.

+

+ some 3D-dynamics

=

Very simpe setup. Just the cam on the ground, black bg, and kaboom : )

 

[Bayden Docking]

Awesome, people keep asking me about particles and i say, they wont be as good as real explosions (because honestly i just like filming the real stuff.) Explosions = awesome.

 

[Shawn Booth]

Distance from action to lens?

Explosion accomplished how?

 

[Roberto Lequeux]

Nice. 120fps goes a long way. I can't wait to see 225fps in 3k or 350fps in 2k in all it's Red Code 225 or 250 glory.

Bayden, don't you mean "cause honestly I just like blowing shit up"?

Please post the final Jansson.

 

[Johnny St.Ours]

awesome.
I love blowing shit up, too.
Did a music video with 5' weather balloons filled with propane and model rocket ignitors attached- that was pretty damn fun.

Looking forward to seeing your final composition.

Anybody know where to get black smoke btw?

 

[PatC]

yes! you must love explosions. That looks great. :head_explode:

 

[Ryan E. Walters]

Nice work!

Fire + Explosions + Red One @ 120 fps = LOTS - O - FUN!

 

[Eli Jarra]

That was killer...nice choice on the music track as well

 

[JanneJansson]

Distance from action to lens?

Explosion accomplished how?

too close.
About 5-7 meters. When I step frame, by frame on the first explosion I can see that the gas ignite about 1m out, and that made it a sort-of-airburst and much bigger then I expected. Almost took my eyebrows

I just used 2 beer cans with gas. In the cans I have some aluminum foil to slow down the liquid, and some toilet-paper wrapped around soaked in gas. Then it all is lit like a big fire. To make the explosion I find it best and safest to use a small electric firework. You don't need much, just a very little.

Do I need to write a disclaimer? Try this at YOUR OWN RISK!! Know what you do, and don't break any LAW!!

 

[Roberto Lequeux]

Anybody know where to get black smoke btw?

I am VERY interested in hearing an answer to this question.