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#1 PeKi7i

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Posted 25 June 2011 - 03:28 AM

What are available options for lens distort/undistort tools in fusion?
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#2 Tilt

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Posted 25 June 2011 - 06:02 AM

Krokodove
the plugin mentioned here: http://www.pigsfly.c...?showtopic=6112
and distorting a UV-gradient with a 3D matchmoving app of your choice and using the result as a lookup.

Depends on your use case...
Do you need it to add some distortion just for looks or do you want to add/remove distortion to match CG with a plate?

#3 PeKi7i

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Posted 25 June 2011 - 06:59 AM

for matching cg elements

#4 pingking

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Posted 25 June 2011 - 02:35 PM

and maybe you can get your hands on a copy of the awake plugins, originaly developed by frantic films, which become a part of prime focus. but the the software development become recently thinkbox. but there is no sign of the awake plugins. in this suite of plugins was also a set of distortion tools.

if you use syntheyes you can take a look at this thread

#5 redoddity

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Posted 28 June 2011 - 03:19 AM

and maybe you can get your hands on a copy of the awake plugins, originaly developed by frantic films, which become a part of prime focus. but the the software development become recently thinkbox. but there is no sign of the awake plugins. in this suite of plugins was also a set of distortion tools.

if you use syntheyes you can take a look at this thread

Thinkbox still has the Awake forums active, so, not sure what has happened there, maybe email 'm, it's still the same team from back when it was Frantic Films.

#6 pingking

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Posted 28 June 2011 - 03:23 AM

i read a little bit in the awake forum and the claim to work on a new version of the plugins or at least they plan to work on it

#7 Gringo

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Posted 04 July 2011 - 04:15 AM

and distorting a UV-gradient with a 3D matchmoving app of your choice and using the result as a lookup

Great Idea! And so simple :)
Do you know how to invert the distortion applied with a map using the same map?

I tried something like getr1d(x*x/r2,y*y/g2) in the CT
where
r1 is red from the distorted image,
r2 is red from the UV distortion map (x axis)
g2 is green from the UV distortion map (y axis)

but id doesn't look correct...

and maybe you can get your hands on a copy of the awake plugins, originaly developed by frantic films, which become a part of prime focus. but the the software development become recently thinkbox. but there is no sign of the awake plugins. in this suite of plugins was also a set of distortion tools.


I sent an inquire about the plugin set to Thinkbox a couple of months ago and they answered they were evaluating the commercial reasonability of it.
But it's still available on demand.
Would be nice if people showed more interest so that they wouldn't kill this nice product.

#8 Tilt

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Posted 05 July 2011 - 05:01 PM

AFAIK inverting a lens distortion polynom is computationally difficult (although with OpenCL that shouldn't matter anymore). But the better option would be to let Syntheyes or Boujou do it on a second UV map.

#9 Gringo

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Posted 05 July 2011 - 06:08 PM

Are you sure it's possible to re-apply lens distortion to an image in Syntheyes or Boujou?

#10 mdharrington

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Posted 06 July 2011 - 12:34 AM

Are you sure it's possible to re-apply lens distortion to an image in Syntheyes or Boujou?

yes...in syntheyes at least

#11 Gringo

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Posted 08 July 2011 - 09:12 AM

Nice!

And of course, a macro:
http://vfxpedia.com/...ion_v02.setting

It applies lens distortion or any other distortion to the image according to a UV map stored in an external file.

The UV map should be a 32 bit float image representing the U (or X) coordinates in the Red channel and V (or Y) coordinates in the Green channel.
It's being resized to fit the source image automatically.

#12 ChadCapeland

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Posted 08 July 2011 - 08:51 PM

Texture would be a lot faster than Custom Tool.

#13 Gringo

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Posted 09 July 2011 - 01:35 PM

What about the Alpha channel?

#14 redoddity

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Posted 12 July 2011 - 04:44 AM

Texture would be a lot faster than Custom Tool.


Or you could try *COUGH* shameless plug *COUGH* http://www.svenneve.com/?p=149

:D

#15 ChadCapeland

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Posted 12 July 2011 - 08:36 AM

Yeah, Sven, I'm with you there. We don't use Texture either, but have our own in-house mapping tool.





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