CGTalk > Techniques > Compositing and Editing
Login register
Thread Closed share thread « Previous Thread | Next Thread »  
 
Thread Tools Search this Thread Display Modes
Old 01-08-2013, 06:30 PM   #1
fakez
New Member
portfolio
Robin Aasbjørg
Hegra, Norway
 
Join Date: Jan 2012
Posts: 7
Advanced object removal in Nuke - tips?

Hey folks!

I am currently having some problems removing track-marks that was set up for a shot where i am supposed to put in a robot. The track-marks is to set the robots presence in the footage, and have to be removed in order to get a nice plate.

The problem is the amount of parallax in the footage. Anyone got ideas of how to solve my problem? I was thinking of building my scene in 3D, to paint out every track-mark, but don't know a whole lot about it.

Here is the footage, and the things that has to be removed is obvious i hope:

http://www.youtube.com/watch?v=dHVG-OyT8S8
 
Old 01-09-2013, 09:29 AM   #2
pingking
Expert
portfolio
michael vorberg
digital compositor
freelance
stuttgart, Germany
 
Join Date: Sep 2009
Posts: 638
first of all you need a 3d track anyway for insterting the robot. with this 3d track you can
rebuild the scene (just simple planes where the walls of the houses are and the lamppost and maybe the tree in the back)

then you could paint a clean version of every thing and project this on the plane

take a look at these tutorials:

https://vimeo.com/26475873
http://www.youtube.com/watch?v=7l37...F3E187&index=67
 
Old 01-09-2013, 05:24 PM   #3
fakez
New Member
portfolio
Robin Aasbjørg
Hegra, Norway
 
Join Date: Jan 2012
Posts: 7
Thanks pingking!

That's the way i have started painting out stuff at the ground. The problem is the way things change color in the footage. So i have cloned from other areas of the picture inn all frames, and projected this back on the ground. I am not sure how to build my scene up since the ground to the left and backwards is not just a plane. But i have to work on it and just see what works.

But what about that tree. Is it possible to make a alpha of the three or something as it would be way to much to make a 3D model of the tree to paint on? I was thinking, make a plane, paint the tree, and make a alpha to make only the three visible at the plane? Is that the way to go?

Thanks for linking those tutorials; its nice to see how other people think and what they do
 
Old 01-09-2013, 06:42 PM   #4
scrimski
antieverything
portfolio
J. Schreyer
head->wall
ARRI Berlin
Berlin, Germany
 
Join Date: Aug 2003
Posts: 7,983
Quote:
But what about that tree. Is it possible to make a alpha of the three or something as it would be way to much to make a 3D model of the tree to paint on? I was thinking, make a plane, paint the tree, and make a alpha to make only the three visible at the plane? Is that the way to go?

Looks like it. Create cards and project the trees onto them or paint them(or a mix of both).
 
Old 01-09-2013, 08:09 PM   #5
pingking
Expert
portfolio
michael vorberg
digital compositor
freelance
stuttgart, Germany
 
Join Date: Sep 2009
Posts: 638
thats what i would do: make a cleanplate of the buildings, project that on geometry or planes
then make plane in front of it and project a clean and masked image of the tree in front of it

with this you get the parallax between both and you can adjust both seperatly

for the color change in the shot: maybe you can colorgrade your projected image to adjust it to the change or you have to use diffrent projections and blend between them
 
Old 01-09-2013, 08:09 PM   #6
CGTalk Moderation
Expert
CGTalk Forum Leader
 
Join Date: Sep 2003
Posts: 1,066,478
Thread automatically closed

This thread has been automatically closed as it remained inactive for 12 months. If you wish to continue the discussion, please create a new thread in the appropriate forum.
__________________
CGTalk Policy/Legalities
Note that as CGTalk Members, you agree to the terms and conditions of using this website.
 
Thread Closed share thread


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
CGSociety
Society of Digital Artists
www.cgsociety.org

Powered by vBulletin
Copyright 2000 - 2006,
Jelsoft Enterprises Ltd.
Minimize Ads
Forum Jump
Miscellaneous

All times are GMT. The time now is 02:34 PM.


Powered by vBulletin
Copyright ©2000 - 2016, Jelsoft Enterprises Ltd.