Re: [Nuke-users] Re: Davinci .cube LUT into Nuke.

2012-03-14 Thread Sebastian von Overheidt
Whenever I'm getting tired of messing with these dozents of LUT standards I 
just bake it into a CMSTestPattern, request and original DPX and the corrected 
one to compare to, and analyze the LUT in Nuke from the Testpattern.

---
Sebastian von Overheidt

Am 13.03.2012 um 20:42 schrieb Randy Little randyslit...@gmail.com:

 sounds like its more then one grade then because if you try to export
 a Color Node from DAV that has a mask on it it will take into account
 the grey.  Its not really meant to export that.  Just ONE Node with no
 secondaries.
 
 Randy S. Little
 http://www.rslittle.com
 
 
 
 
 On Tue, Mar 13, 2012 at 12:44, Francois Lord li...@francoislord.com wrote:
 That LUT looks wrong. When you open it in a text editor, you can see the
 first rows are made to output some gray values when they should output
 mostly red values. The header look fine, so it's not necessarily because
 it's in a bad format.
 
 
 
 On 12/03/2012 12:29, mattdleonard wrote:
 
 Here's one of the .dpx files and the LUT.
 
 Many thanks again,
 
 Matt
 
 
 
 
 
 Sphere VFX Ltd
 3D . VFX . Training
 www.spherevfx.com http://www.spherevfx.com
 
 
 
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Re: [Nuke-users] Nuke to Shake/Fusion roto

2012-03-14 Thread marlor . list
Tracksperanto or IXIR software?
I remember that one of them allowed you to export masks:
http://guerilla-di.org/tracksperanto
http://www.ixirdigital.com/trackeditor.php

---
m

On Wed, Mar 14, 2012 at 6:06 AM, J Bills jbillsn...@flickfx.com wrote:

 no, no nuke import.  only export.


 On Tue, Mar 13, 2012 at 5:09 PM, Deke Kincaid dekekinc...@gmail.comwrote:

 I haven't used Silhouette in a while.  Did they ever add a Rotopaint
 importer?  I ask because then you could export shake from it.

 -deke

 On Tue, Mar 13, 2012 at 22:25, teidenzero 
 nuke-users-re...@thefoundry.co.uk wrote:

 **
 Hello everyone,
 I was wondering if there is a way to export Nuke roto files into Shake
 or Fusion without having to render out the matte.
 I heard about exporting ASCII but I'm not really sure what that means
 and how needs to be done.
 Can anyone help?

 Thank you very much

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[Nuke-users] Re: Write Node output result differs from Viewport result

2012-03-14 Thread snozon
Layers which should be on top of others just dont render or show up in the 
final output - and that changes from one frame to another...



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Re: [Nuke-users] Re: Write Node output result differs from Viewport result

2012-03-14 Thread Gabor L. Toth
Hi, try changing the camera near and far clipping planes, sometimes it does
weird things.
Hope this helps,
Gabor


On Wed, Mar 14, 2012 at 1:18 PM, snozon
nuke-users-re...@thefoundry.co.ukwrote:

 **
 Layers which should be on top of others just dont render or show up in
 the final output - and that changes from one frame to another...

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Re: [Nuke-users] Nuke to Shake/Fusion roto

2012-03-14 Thread Ryan O'Phelan
Wow, ixir looks awesome!
On Mar 14, 2012 5:19 AM, marlor.l...@gmail.com wrote:

 Tracksperanto or IXIR software?
 I remember that one of them allowed you to export masks:
 http://guerilla-di.org/tracksperanto
 http://www.ixirdigital.com/trackeditor.php

 ---
 m

 On Wed, Mar 14, 2012 at 6:06 AM, J Bills jbillsn...@flickfx.com wrote:

 no, no nuke import.  only export.


 On Tue, Mar 13, 2012 at 5:09 PM, Deke Kincaid dekekinc...@gmail.comwrote:

 I haven't used Silhouette in a while.  Did they ever add a Rotopaint
 importer?  I ask because then you could export shake from it.

 -deke

 On Tue, Mar 13, 2012 at 22:25, teidenzero 
 nuke-users-re...@thefoundry.co.uk wrote:

 **
 Hello everyone,
 I was wondering if there is a way to export Nuke roto files into Shake
 or Fusion without having to render out the matte.
 I heard about exporting ASCII but I'm not really sure what that means
 and how needs to be done.
 Can anyone help?

 Thank you very much

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[Nuke-users] Re: Write Node output result differs from Viewport result

2012-03-14 Thread snozon
I kinda nailed it down to the following:

i have stuff rendered by the scanline renderer. and after that i am painting on 
top of it via ROTO paint.

that shows up in the viewport fine.

but as soon as I do a flipbook or render it the roto painted stuff disappears.

and that happens in different comps which are all kinda based on one comp I 
created in the beginning.

fun stuff is - when i render out the scanline result to a jpg sequence and load 
it in a complete new comp and copy paste the ROTO paint into that new comp it 
works fine...

Comp settings are all the same.



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Re: [Nuke-users] Re: Write Node output result differs from Viewport result

2012-03-14 Thread Howard Jones
so basically your rotopaint is failing to render when in-line. Possibly a lack 
of memory, was this latest version of Nuke?

 
Howard




 From: snozon nuke-users-re...@thefoundry.co.uk
To: nuke-users@support.thefoundry.co.uk 
Sent: Wednesday, 14 March 2012, 14:13
Subject: [Nuke-users] Re: Write Node output result differs from Viewport result
 

I kinda nailed it down to the following:

i have stuff rendered by the scanline renderer. and after that i am painting 
on top of it via ROTO paint.

that shows up in the viewport fine.

but as soon as I do a flipbook or render it the roto painted stuff disappears.

and that happens in different comps which are all kinda based on one comp I 
created in the beginning.

fun stuff is - when i render out the scanline result to a jpg sequence and 
load it in a complete new comp and copy paste the ROTO paint into that new 
comp it works fine...

Comp settings are all the same.
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[Nuke-users] Re: Write Node output result differs from Viewport result

2012-03-14 Thread snozon
I am on 6.3.6 X and have all files stored locally and 64GB of RAM...

Maybe too much RAM assigned to PAINT? 

In my current settings its 60%
Just lowered it to 30% and still the same.



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Re: [Nuke-users] Re: Luminance / Chroma B44 Compressed EXRs in Nuke

2012-03-14 Thread Peter Pearson

On 13/03/12 21:58, fnordware wrote:


I've never heard 1.7 called unstable. It's been out for nearly 2 years
without the need for an update.

I looked and you are right, 1.7 was the first actual release to support
the long file names, although the feature was added to the OpenEXR
repository in 2008. Since Nuke supports channel names longer than 32
characters, I'd think they'd be eager to support it in EXR instead of
clipping the name or whatever they do. But even if you choose not to
write long-channel EXRs, there's no excuse for not being able to read them.


The issue was that in 1.70, long channel names were added in a way that 
broke compatibility with older versions of OpenEXR:


http://www.mail-archive.com/openexr-devel@nongnu.org/msg00975.html


I've just tried this myself by writing out an EXR with a channel name of 
35 chars long in OpenEXR 1.70, and OpenEXR 1.61 cannot read in the file 
at all, it throws the exception:


The file format version number's flag field contains unrecognized flags.

Peter
--
Peter Pearson, Software Engineer
The Foundry, 6th Floor, The Communications Building,
48 Leicester Square, London, UK, WC2H 7LT
Tel: +44 (0)20 7434 0449   Web: www.thefoundry.co.uk

The Foundry Visionmongers Ltd.
Registered in England and Wales No: 4642027
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[Nuke-users] Re: Davinci .cube LUT into Nuke.

2012-03-14 Thread mattdleonard
Many thanks for everyones help and advice.

Best regards,

Matt


Sphere VFX Ltd
3D . VFX . Training
www.spherevfx.com



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[Nuke-users] Basics python

2012-03-14 Thread barba
Hi all..
i'm trying to run this script  
http://www.nukepedia.com/python-scripts/ui/searchreplacepanel/
(thanks frank)

so i copy the .py in the correct folder..then i add code in the menu.py..
i start nuke..
all perfect..
but when i click the script (SearchReplace)..nothing appears..
no errors
no windows
no tab

why??
i tryed to find something wrong in the code..but seems all perfect!

can anyone help me??

thanks

R.



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Re: [Nuke-users] Re: Luminance / Chroma B44 Compressed EXRs in Nuke

2012-03-14 Thread Peter Pearson

On 13/03/12 21:58, fnordware wrote:


I've never heard 1.7 called unstable. It's been out for nearly 2 years
without the need for an update.

I looked and you are right, 1.7 was the first actual release to support
the long file names, although the feature was added to the OpenEXR
repository in 2008. Since Nuke supports channel names longer than 32
characters, I'd think they'd be eager to support it in EXR instead of
clipping the name or whatever they do. But even if you choose not to
write long-channel EXRs, there's no excuse for not being able to read them.

Between this and the 4:2:0 thing, I think it's Nuke that's the
bottleneck for compatibility now.


(repost...)

The issue was that in 1.70, long channel names were added in a way that 
broke compatibility with older versions of OpenEXR:


http://www.mail-archive.com/openexr-devel@nongnu.org/msg00975.html


I've just tried this myself by writing out an EXR with a channel name of 
35 chars long in OpenEXR 1.70, and OpenEXR 1.61 cannot read in the file 
at all, it throws the exception:


The file format version number's flag field contains unrecognized flags.

Peter

--
Peter Pearson, Software Engineer
The Foundry, 6th Floor, The Communications Building,
48 Leicester Square, London, UK, WC2H 7LT
Tel: +44 (0)20 7434 0449   Web: www.thefoundry.co.uk

The Foundry Visionmongers Ltd.
Registered in England and Wales No: 4642027
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Re: [Nuke-users] adding viewer lut

2012-03-14 Thread Gary Jaeger
that worked! thanks!

On Mar 13, 2012, at 4:20 AM, barba wrote:

 hi gary,
 i've just installed a new ARRI's LUT...
 i had your same error in the init.py.
 I solved it just changing the Minus signs (-) in addCurve expression..
 
 this is a typical problem of copy/paste by html codes.
 
 cheers   
 
 R.
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[Nuke-users] Re: Basics python

2012-03-14 Thread barba
okokok
i solved the first problem...now i  see the panel into the Pane Menu..
but..
Replace doesn't work...and Found panel is fix to 0 node found..

 :(



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[Nuke-users] Re: Davinci .cube LUT into Nuke.

2012-03-14 Thread donat
On 12/03/2012 17:22, mattdleonard wrote:
 Hi guys,

 I'm asking this question on behalf of a client.

 He has the free edition of Davinci which he's using for grading. He is trying 
 to export the LUT's from Davinci (.cube is the format coming out) into Nuke.

 I've sat with him and tried everything I can think of but nothing is working.


I've tried a bit to do the same thing. When you export a lut from DaVinci, 
there's the cube lut (3d) and what they call a shaperlut (1d). From what I 
understand the shaperlut 'shapes' the data so that the 3d lut transformation is 
less extreme, ie the shaperlut brings the values closer to their destination, 
then the 3d lut is applied to finish the job.

Problem is that we cannot load those shaperlut's in Nuke. But apparently they 
are close to a log2lin transform (or the inverse). So load the ungraded footage 
in Nuke, apply a log2lin, then apply the vectorfield node with the cube lut. In 
my experience this got me a close result.

Hope this helps.

Donat
www.nozon.com


Donat Van Bellinghen
www.nozon.com



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Re: [Nuke-users] Re: Luminance / Chroma B44 Compressed EXRs in Nuke

2012-03-14 Thread Ivan Busquets

 Right, well I wouldn't call that unstable.


As Nathan said before, nobody is questioning its actual stability. The name
distinction here was only between stable and feature releases. I'm
sorry if you interpreted it that way when I quoted 1.6.1 as being the
latest stable release, but you've already been given an explanation for
the naming scheme, so let's just drop that argument. :)

In my opinion, 1.7 is perfectly stable. If anyone can identify an issue
 with it, I'll gladly fix the bug myself. It is open source, after all.


Nothing stops you from doing the same thing for Nuke. The source for
exrReader and exrWriter is available in the NDK, so you can recompile
against 1.7 if you need long channel names in Nuke.

Whether Nuke should use 1.7 by default or not is debatable, in my opinion.
I understand your point, and was just giving a possible reason why they
would be reluctant to.


Cheers,
Ivan

On Wed, Mar 14, 2012 at 9:59 AM, fnordware 
nuke-users-re...@thefoundry.co.uk wrote:

 **
 *peter wrote:*
 The issue was that in 1.70, long channel names were added in a way that
 broke compatibility with older versions of OpenEXR:


 Right, well I wouldn't call that unstable. That would be like saying a
 new version of Nuke is unstable because old versions didn't recognize a
 node that was only in the new version.

 If you're worried about writing out files that will be incompatible with
 older versions, then just crop the channel names before passing them to
 OpenEXR. But since these files are out there, you may as well use the 1.7
 library so you can read them. Ideally you'd let the user check a box to
 write out long channel names if they really wanted to.

 The other time the EXR format was expanded was to allow for tiled images.
 It will soon be expanded again for these deep image buffers. At least I'm
 pretty confident Nuke will upgrade to the latest library when that happens.


 Brendan

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Re: [Nuke-users] Re: Basics python

2012-03-14 Thread Frank Rueter

any errors in the script editor or error console?


On 3/15/12 6:11 AM, barba wrote:

okokok
i solved the first problem...now i see the panel into the Pane Menu..
but..
Replace doesn't work...and Found panel is fix to 0 node found..

Sad


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Re: [Nuke-users] Re: Basics python

2012-03-14 Thread Frank Rueter
I've fixed a but where the panel would error out on file paths without 
frame padding (e.g. quicktimes).

Is that what happened in your case?
the new version is here:
http://www.nukepedia.com/gizmos/python-scripts/ui/searchreplacepanel/



On 3/15/12 10:31 AM, Frank Rueter wrote:

any errors in the script editor or error console?


On 3/15/12 6:11 AM, barba wrote:

okokok
i solved the first problem...now i see the panel into the Pane Menu..
but..
Replace doesn't work...and Found panel is fix to 0 node found..

Sad


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