Re: [Nuke-users] Gathering roto values to drive a tracker

2012-03-07 Thread Howard Jones
You can get the position of the point through the curve editor - to get the 
offset subtract the reference value.
If you do this with 2 points then with clever maths that someone else can point 
you to you'd get the rotation. 


How you get rotation values from one point I dont know??

 
Howard




 From: Cesar Rodriguez c_rod...@hotmail.com
To: nuke-users@support.thefoundry.co.uk 
Sent: Wednesday, 7 March 2012, 18:31
Subject: [Nuke-users] Gathering roto values to drive a tracker
 

 

Hi there,

Is there a way to link the translate and rotation values of a single point of 
a roto shape to a tracker on nuke?  

I want to gather the rotation and translation of 2 points of a roto shape and 
use that information to drive a tracker.

Any help will be appreciated 

Cheers,





César Rodríguez B. 
Visual Effects Artist 
-- 
Quote of the week... 

An elderly man was trying to find a place to sit and observe the Olympic 
Games, as he went to each section. All the other Greeks laughed as he tried to 
make his way through. Some ignored him. Upon entering the Spartan section all 
the Spartans stood and offered the elderly man their seats. Suddenly the 
entire stadium applauded. All the Greeks knew what was the right thing to do, 
but the Spartans were the only ones who did it.


Xenophon 



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Re: [Nuke-users] Gathering roto values to drive a tracker

2012-03-07 Thread Magno Borgo

Yes, via python.I've created a script recently that does that. :)http://www.nukepedia.com/gizmos/bakerotoshapestotrackers/
Hi there,Is there a way to link the translate and rotation values of a single point of a roto shape to a tracker on nuke? I want to gather the rotation and translation of 2 points of a roto shape and use that information to drive a tracker.Any help will be appreciated Cheers,César Rodríguez B. Visual Effects Artist -- Quote of the week... 
"An elderly man was trying to find a place to sit and observe the Olympic Games, as he went to each section. All the other Greeks laughed as he tried to make his way through. Some ignored him. Upon entering the Spartan section all the Spartans stood and offered the elderly man their seats. Suddenly the entire stadium applauded. All the Greeks knew what was the right thing to do, but the Spartans were the only ones who did it."Xenophon  		 	   		  -- **Magno Borgowww.borgo.tvwww.boundaryvfx.com___
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Re: [Nuke-users] Gathering roto values to drive a tracker

2012-03-07 Thread J Bills
magno's scripts rock.  if you've not seen his warper scripts, definitely
worth checking out.

unless I'm missing what you're after - you can right click a point in the
viewer and copy point link and paste it onto the x/y curve of a tracker.
 you can set a 2nd point to derive rotation.

you'll need to bake the curves before you can apply the transform, as the
tracker doesn't like expressions (bug).  right click the tracker curve,
edit  generate  ok



On Wed, Mar 7, 2012 at 11:10 AM, Magno Borgo mag...@pop.com.br wrote:

 Yes, via python.

 I've created a script recently that does that. :)
 http://www.nukepedia.com/gizmos/bakerotoshapestotrackers/




 Hi there,

 Is there a way to link the translate and rotation values of a *single
 point* of a roto shape to a tracker on nuke?

 I want to gather the rotation and translation of 2 points of a roto shape
 and use that information to drive a tracker.

 Any help will be appreciated

 Cheers,



 César Rodríguez B.
 Visual Effects Artist
 --
 Quote of the week...
 An elderly man was trying to find a place to sit and observe the Olympic
 Games, as he went to each section. All the other Greeks laughed as he tried
 to make his way through. Some ignored him. Upon entering the Spartan
 section all the Spartans stood and offered the elderly man their seats.
 Suddenly the entire stadium applauded. All the Greeks knew what was the
 right thing to do, but the Spartans were the only ones who did it.

 Xenophon





 --
 **
 Magno Borgo

 www.borgo.tv
 www.boundaryvfx.com

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RE: [Nuke-users] Gathering roto values to drive a tracker

2012-03-07 Thread Cesar Rodriguez


Thanks for the tips.

Cheers

C~ 



From: jbillsn...@flickfx.com
Date: Wed, 7 Mar 2012 11:44:12 -0800
Subject: Re: [Nuke-users] Gathering roto values to drive a tracker
To: nuke-users@support.thefoundry.co.uk

magno's scripts rock.  if you've not seen his warper scripts, definitely worth 
checking out.

unless I'm missing what you're after - you can right click a point in the 
viewer and copy point link and paste it onto the x/y curve of a tracker.  you 
can set a 2nd point to derive rotation.


you'll need to bake the curves before you can apply the transform, as the 
tracker doesn't like expressions (bug).  right click the tracker curve, edit  
generate  ok




On Wed, Mar 7, 2012 at 11:10 AM, Magno Borgo mag...@pop.com.br wrote:






Yes, via python.
I've created a script recently that does that. 
:)http://www.nukepedia.com/gizmos/bakerotoshapestotrackers/







Hi there,

Is there a way to link the translate and rotation values of a single point of a 
roto shape to a tracker on nuke?  

I want to gather the rotation and translation of 2 points of a roto shape and 
use that information to drive a tracker.



Any help will be appreciated 

Cheers,



César Rodríguez B. 
Visual Effects Artist 
-- 


Quote of the week... 

An elderly man was trying to find a place to sit and observe the Olympic 
Games, as he went to each section. All the other Greeks laughed as he tried to 
make his way through. Some ignored him. Upon entering the Spartan section all 
the Spartans stood and offered the elderly man their seats. Suddenly the entire 
stadium applauded. All the Greeks knew what was the right thing to do, but the 
Spartans were the only ones who did it.



Xenophon 


  


-- **
Magno Borgo

www.borgo.tv


www.boundaryvfx.com
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