Nuclear heatwave

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Old 08 August 2007   #31
So...
We've made a few changes to how the explosion in the video should look, and decided that it would be more effectful if the blast came before the heatwave. Originally we wanted to have the heatwave turning all to dust before the explosion, but now there will be an explosion with a heatwave followed by static and then when the picture returns you will see the devastating effects of the explosion. This way we have more time to show the main CG shot, instead of just 10 frames

Here's a concept sketch I just made in photoshop for the CG shot (after the explosion)




In addition to the heatwave, I will be using the particle system I've created, with help from you guys - especially entrancea, for the fog/smoke/ash/fire flowing on the ground and around/over objects.

If i get permission I will post some footage of the actual explosion we shot later, which should be great for reference.
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www.helmet.no

Everything should be made as simple as possible, but not simpler.

 
Old 08 August 2007   #32
Thanks for the vote of confidence Asomma .....The concept art looks really good....although I was wondering like wouldn't the sky turn very dark with all the smoke and dust and debri?Then the lamp-posts would still be burning and half broken or so......Just a few questions that popped up in my mind ...

Chaow,
Subhro
 
Old 08 August 2007   #33
The smoke and debris in the sky will be added from the real explosion we shot on location.
About the lamp-post or powerline - whats it called? - I was thinking of having the wires hanging, most of the post turned black (coal), but i dont wanna set it on fire because we want to make the viewer see the box in the middle, the box is what causes the explosion

Im thinking about adding some water ripples under the box.

im gonna be posting a video of the real explosion soon so stay tuned!
__________________
Alex

www.helmet.no

Everything should be made as simple as possible, but not simpler.

 
Old 08 August 2007   #34
Alright...that sounds great...will be waiting to see the actual footage....

Chaow,
Subhro
 
Old 08 August 2007   #35
Good excuse to burn up some free time. Really pretty quick smash at it (ie quick fume sim)

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Old 08 August 2007   #36
Originally Posted by JohnnyRandom: Good excuse to burn up some free time. Really pretty quick smash at it (ie quick fume sim)



ani info about the setup?
 
Old 08 August 2007   #37
Sure, super simple flow, particles birthed from an animated torus linked to a particle source in fume (smoke only). Rerendered the the particle flow in krakatoa (demo) for a quick debris pass. comped in fusion.
Attached Images
File Type: png DW_pflow01.png (4.5 KB, 72 views)
File Type: png DW_f-flow.png (23.2 KB, 67 views)
File Type: png DW_fume_s.png (9.8 KB, 67 views)
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Last edited by JohnnyRandom : 08 August 2007 at 10:18 PM. Reason: clarification
 
Old 08 August 2007   #38
Whoa!Looks great.....
 
Old 08 August 2007   #39
thanks Johnny

yeah, sometimes the simply stuff is the best

kind regards,
anselm
 
Old 08 August 2007   #40
nice setup

could you show the clean fumefx animation
and the clean krakatoa animation seperately?

will the fumefx smoke flow around the teapot even if the particles go through it?
(since you added the teapot as an object in fumefx...)
__________________
Alex

www.helmet.no

Everything should be made as simple as possible, but not simpler.


Last edited by asomma : 08 August 2007 at 10:56 AM.
 
Old 08 August 2007   #41
So here is the first of the two explosion we shot on location.
Here we blow up a campingvogn (what do you call these english?) with about 5 kilos of dynamite. enjoy

5 kilo explosion


This is nothing tho... in the second shot, we blow up the ground with 30 kg!
__________________
Alex

www.helmet.no

Everything should be made as simple as possible, but not simpler.

 
Old 08 August 2007   #42
Anselm, I started with a way more complex approach (multiple deflectors, forces, collision tests), but due to my serious lack of patience waiting for pflow to update and playing during breaks from work, I opted to cheat it out in post, it's so much faster. Even though to have it truly correct is very satisfying, I am not getting paid to do it

Great explosion, asomma! I love seeing real pyros go off Nice footage, I like how you can see the detonators spark, explode, and rumble the trailer before the actual dynamite goes off!

The shots are on my workstation and I won't have access again till monday (I'll post them then) To answer your question the Fume sim does flow around the teapot. Although not as acurately as it is driven by the particles in the flow and they do go through the teapot (again due to my impatience with pflow's single threadedness)

EDIT:
Just the dustcloud, teapot and ground plane.
http://www.youtube.com/watch?v=iki2LycwpGI
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Last edited by JohnnyRandom : 08 August 2007 at 04:17 PM.
 
Old 08 August 2007   #43
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