View Full Version : tracking
08 August 2004, 03:45 PM
I must combine a vidéo with a 3d character placed on the ground, but the vidéo was made with an handycam. it's a travelling and it trembling hard also.
Now i wonder how i can do to track the vidéo movment and assign all keys to the object 3D.
(May be it's not the better way.)
Is someone have a sweet solution or some explosive tutorial to show me the way?
I put a vdo below. i'm sure you'll see what's my problem.
08 August 2004, 08:37 PM
What I think you want is a 3D track. Very expensive :(
08 August 2004, 09:59 PM
Thanks, ramenchicken, i saw 2d3 pages and particullary the one of steadymove soft (Its' the less expensive), There's some vidéo example and result are fine.
I wonder if it's possible to have the same result with combustion.
08 August 2004, 06:33 AM
I'm not a C* expert, but I believe the tracker in C* is 2D? If so, you could try to fake the 3D, but you'll have to do it all by hand. You'll probably have to track by hand too, because your footage moves around so wildly. (In fact, even with the $10000 software you might not get a good track with that footage...)
08 August 2004, 08:58 PM
You're right ramenchicken
I didn't use the right method.
i found a demo of Boujou bullet and some tutorials with attached files. That's fine.
Now i'm ready for a good tracking :scream:
This is just an example i found.
08 August 2004, 10:05 PM
good luck! :thumbsup:
btw, here's another example, using Syntheyes (the 3d woman is made in Hash:Animation). the footage kinda reminds me of yours...
08 August 2004, 11:00 PM
I send the page to a friend that'll surely "kill him on the spot".
08 August 2004, 05:48 PM
I try some tracker 3D with a viideo that shake less than the previous i linked. The character i included is not really good but i contrated my attention to the stability between 3D and video.
Video 900Kb (http://dg1.dave.free.fr/brem.mov)
Wait for your critics
08 August 2004, 11:37 PM
that looks really cool! what did you end up using to track it?
now for the lighting and shadow passes! :)
08 August 2004, 09:57 PM
This is for a short movie (26 min.), It's a Légend which is taking place in 1890.
lighting is real problem 'cause when we do this scene we realized that the light had no real source. Clouds diffused the sun light, and leafs masked it. When we were standing our shadow was almost invisible. That make the realistic render of the scene very difficult for me.
(And the white pebble send back light a little)
May you have solution for this lighting problem? :shrug:
08 August 2004, 04:09 PM
HDRI , Final Gather lighting will be the solution. If the location is close to you get a shine gray x-mass ball and shoot an Hdri image. Nice tracking, dont forget to add a bit grain and blur to much the original shooting
08 August 2004, 05:31 PM
About HDRI, need i put some other light in my scene or may the HDRI is sufficient?
It's possible you think i'm a stupid guys,... Well, i now what's an HDRI but i don't how to make it. :sad:
08 August 2004, 05:36 PM
What 3d software are you using? You dont need to add any other light, of course you can add if you like.
08 August 2004, 05:43 PM
I use Lighwave.
08 August 2004, 05:55 PM
i dont know lw but, if you look the way that objects are lighed in the original shot, u should see that the 3d character must be lighed from behide with a direction light so the main body will be dark as the stones/leafs in front layer. That means that the 3d must be too dark, like the tree behide it :) The other importand is to much the black and white leves and the contrast in a compositing app.
01 January 2006, 12:00 AM
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