View Full Version : Earthquake - VFX Challenge - johs

11 November 2002, 01:00 PM
Hi, I'm new in this forum, and I'm not used to write in english, so I hope you can understand me.
This earthquake thing is by my opinion a very good challenge so I'll try to get somthing done, an hopefully it will be finished on time.

I have shot some fotage of this location. A clean plate with just the background, a shot with a dude fooling around trying to act like the earth is shaking, and a shot with the garbage container being pushed around in the background. This is hopefully going to make out a convincing earthquake.

11 November 2002, 01:02 PM
...And this is some of the 3D workspace

11 November 2002, 02:44 PM
very good start, nice job. and your english is great :)


11 November 2002, 04:41 PM
I have now made some early composites of the earthquake, there are two layers of video and one with the 3D ground breaking apart.

clip without camera shake (
clip with camera shake (

Btw. I got some help with the spelling in my previous post :)

11 November 2002, 05:04 PM
Looking great! really like the crack variations. :applause:
only comment is I think the motion of the cracks feels a little like it's on a piston lift vs. the earth breaking apart.. maybe less ease in and out on the beginning and end of the break? overall, looks really really good :)

11 November 2002, 07:19 PM
I love the gabage dump at the end, the crack is aweseome!


11 November 2002, 07:30 AM
ser meget lovende ud! :applause:

translated from danish.

looks very promising! :applause:

11 November 2002, 08:18 AM
i see you made this in maya, how did you manage to subdivide the streets and make the texture stay on each part of geometry without moving?

11 November 2002, 10:53 AM
Thank you all for the nice coments.

The crack animation is ofcource not finished at all, it has to start opening near the camera, and then folow the road more slowly than it do now.
The Texture is my big headache at the moment. At first the road was one polygon object, with nice UV's, and the texture was projectet and then converted to solid file textur. After that i split the polygons and made all the difrent pices of fhe road, but then the texture started to strech at some polygons.
Then i tried to make an new projection on the entire road and make texture refference objects, to keep the texture on the rigth place. It works fine, but now the texture starts to blur at some polygons, i don't why, and it's driving me nuts rigth now.
I'm also considering to reshot the clip with the dude fooling around, so he starts to react earlier on the shaking of the
ground, that way it wont be so abroubt.
Hope it made sense.

11 November 2002, 01:16 PM
Ah, no more headache. The texture bluring problem was solved by setting the filter atribute, in the texture and projection node, to almost 0.

11 November 2002, 01:27 PM
I'm using C4D, but I found that I had to subdivide my meshes in order to get the projected texture to stick properly.

With low res meshes the texture distortion was obvious when you looked at the model from a different viewpoint or started animating it significantly.

12 December 2002, 04:34 PM
Crap, a lot of the WIP got lost there, shit happens.

I don't know if is should try and repost some of the in progress stuff.
Anyway, I have made the edges of the asphalt less black, added more debris, and som tweaking here and there.

12 December 2002, 12:52 AM
Since my post about the layers got lost, I'll post it again here.

Edit: just for the fun, I hav now added some of the plates from Maya as quicktime movies.

First a frame from the original fotage.

Here is the plates renderd from Maya, The original fotage has been modifyed a bit, before it was projected on to the geometry.

The backbround

The cart

The ground

The shadows (alpha)

A patch used to make the container in the background folow the piece of asphalt it stands on.

To be continued...

12 December 2002, 12:53 AM

A re-render of the asphalt plates, with a less black line on the edge of the asphalt pieces

The particles, since they are hard to see on a black background, they are here shown on a grey background
The particles with shadows:

The particle shadow

Here the layers has been put together, but no filters or corrections has been done, it's just the raw layers.

And here is the final result, a little longer and in higher resulution than my final submission.

12 December 2002, 01:01 AM
Her is my final submission (dont know where else to put it)

Original fotatge from the camera:

Final clip:

Too bad about the Database crash, but it has been a fun challenge anyway. The idea about a composeting challenge is great, and I hope there are more to come.

12 December 2002, 02:22 PM
I was asked to show a version of the earthquake without the camerashake, so here it is:

12 December 2002, 09:13 PM
Hey There johs,

can you tell me by any chance how you did to divide the plane that represents the road in chunky pieces with maya. I know you did extrude the dges to do the cracks going deep in th egrouns...but on the did you separate the plane to make it look like pieces of the road were actually ripping ?

Thanks :D and your VFX is in the lead :) You did an awesome job.

12 December 2002, 12:32 AM
thats an awesome job johs! u are definitley my pick too :)
im new to the forums (eek first post :P) and u've gotten me keen on the second challenge around the corner...

it would be interesting to know how many hours you spent on the project and if u used any tricks to cut the time down while still lookin good?...


12 December 2002, 10:21 AM
Thanks for your nice comments

The asphalt was at first one large plane. Then I used the poly split tool, to draw the lines in the polygons, where I wanted the surface to tear apart. Then i had a poly surface with one face for each peice of asphalt i wanted. To seperate them i dublicated the plane as manny times as i had faces, and deleted all faces on each surface except one (a difrent one ewery time). Then I had 12 pices of plane witch I extrudet edges on, textured, and animated apart.

I started on the project about two weeks ago, but the first week, I did'nt do werry much, but to shoot the footage. In det second week with the extended deadline, I used quite a lot time, I had some problems witch took a lot of time to solve. Towards the end of the week I was quite bussy, and I worked in the nigth time as well.
I don't think i used any tricks to cut the time down, other than render while I slept, and optimize the rendertime (at first the shoping cart with raytraced shadows took around 30 minutes pr. frame to render, but it got down to 4-6 minutes).

Hope that answered your questions, otherwise let me know.

12 December 2002, 03:12 PM
Nice Man! I luv it!!! :beer: :beer:

Except the particle rocks near the building (close to the camera) that come off the road look like its falling off into infinite space, not bouncing on the side. But other the that sweeeeeeeeet!

How did you blend the road into the scene? Did you reconstruct the whole 3D set and relight it all?
Cause I noticed in the original the sun goes down....the beginning you see a bright sunlight casting on the building and it seems to go down.....
But in your final, the whole thing is when after the sun goes down...

Oh and one more thing, how did you get the rocks in the beginning of the original clip to roll? Did you throw them and start recording? :D

Great Work Mate!

12 December 2002, 04:40 PM
Thanks Mate

I know the particles act a little funny, but particle stuff and dynamics is one of my weaker sides.

No i did not relight the sufaces with the projected texture form the clip, I used a "surface shader" for that so it just displays the texture no matter how the ligth is. But i did a little compositing on the video before i projected it on to the geometry. The original clip from the camera was about 2 minutes long, so i stole a bite of the wall and the road from a later stage on the tape, to awoid the hard light.

And the rocks in the beginning of the clip is not rocks at all, it's the wind blowing some leaves. (but the were the reason i chose this clip form the 2 mins of footage :) )

12 December 2002, 06:43 AM
nice work johs
and impresive too

can you tell how you make crack in poly, i tried lot but couldn't get success

12 December 2002, 04:47 AM
You should make a tutorial. I would like to find out how you did your particles.

12 December 2002, 01:34 PM
Yes, a tutorial on the whole compositing would be great. You just inspired me to think out some compositing I'll proceed with when I get back to school and maya. Maya dynamics rocks. Thx for explaining the cracking of the plane. Have you tried "shatter" in Maya? What a pain in the arse:D

01 January 2003, 02:54 PM
I can not promise to make a tutorial, i depends on how bussy I am at school after the holidays. But I will try. I have newer written tutorials before, but one has to be the first.
In stead of a toturial I can recomend the book: "The Art And Science Of Digital Compositing" by Ron Brinkman.

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