Which colorspace is used as the reference space for an OCIO config?
Abraham Schneider <abraham....@...>
Hi there! I just posted this question on the ACES website: http://acescentral.com/t/why-utility-raw-as-reference-for-aces1-0-3-and-not-aces2065-1/1378 It seems like it's not just me that is unsure, how OCIO decides, which colorspace in a config is used as the reference space, that all other colorspaces are related to. And what excact purpose the 'reference' role has. Could you maybe have a look at this and shine some light on this topic? Thanks, Abraham
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Re: Converting Primaries
Breadbox <markel.j...@...>
Thank you all, after searching around I stumbled upon the site Sean mentioned and ended up using it. They were PCS-relative XYZ values for AdobeRGB in case anyone was wondering. Here's another site I also found that works for XY values. Not as sophisticated but it seems to work.
On Monday, March 26, 2018 at 12:32:16 PM UTC-5, Sean Cooper wrote:
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Re: Digest for ocio...@googlegroups.com - 6 updates in 2 topics
tony cole <ton...@...>
Hi, This is likely a very old request. I am charged with setting up a global config for a new startup. I am basing the .ocio on aces1.0.3 I'm confused on how to customise profiles, looks etc ... I do not need half of the colourspaces, ie; dolby ... Any advice from all of you would be greatly appreciated ! Thanks
On 27 March 2018 at 04:32, <ocio...@...> wrote:
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Re: Slack invite
Sean Cooper <se...@...>
Luis, Chris added. If someone could make a Slack invite bot that would be useful :)
On Mon, Mar 12, 2018 at 5:43 PM, <chris....@...> wrote:
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Re: Converting Primaries
Sean Cooper <se...@...>
I'd also point you here:
On Mon, Mar 26, 2018 at 5:34 PM, Troy Sobotka <troy.s...@...> wrote:
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Re: Converting Primaries
Troy Sobotka <troy.s...@...>
On Mon, Mar 26, 2018, 9:22 AM Jim Houston, <jim.h...@...> wrote:
Thanks so much for the check Jim! With respect, TJS
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Re: Converting Primaries
Jim Houston <jim.h...@...>
Jim
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Re: Converting Primaries
Troy Sobotka <troy.s...@...>
Not sure if you got help here Markel. I managed to craft up a spreadsheet that should work. Should being that it hasn't been tested extensively and that you'll need to manually make your OCIO stanzas from the provided entries. This isn't nearly as terrific as Colour, but I realize not everyone has Python handy, and a sort of "online calculator" probably couldn't hurt as I found myself doing the adaptation frequently. https://docs.google.com/spreadsheets/d/1qB1YVuQFTlAKeRLyQXtOJalbZQv3V1vRPXBywqIGV_o/edit?usp=sharing I've input the values you gave along with ACES AP0 primaries. The chromatic adaptation is the Bradford CAT. The OpenColorIO stanzas appear on the final three lines. Those should be suitable to copypasta into a configuration as part of a group transform. Note that your source buffer will need to be linearized however appropriate for your encoded image. Let me know if anyone spots a mistake. With respect, TJS
On Wed, Mar 7, 2018 at 8:26 AM Troy Sobotka <troy.s...@...> wrote: Convert the xy coordinates to XYZ, with red being the first column, then green, then blue. That forms a 3x3 matrix for taking linearized RGB to the XYZ domain.
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Re: Slack invite
chris....@...
Hi Sean, Would you please add me as well? chris....@... Thanks! -Chris Davies
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Re: Slack invite
Luis Barrancos <luis.b.b...@...>
Hi
I'd like to have access to the ocio slack channel as well. Regards
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Re: Slack invite
Sean Cooper <se...@...>
Sorry for the delay, Chris, Simon, Espen, Sean, and Remi I've sent the invite
On Fri, Mar 9, 2018 at 8:53 AM, <remia...@...> wrote:
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Re: Slack invite
remia...@...
Hello, I'd like to join too : remia...@... Thanks !
On Monday, December 18, 2017 at 5:08:56 PM UTC+1, Sean Wallitsch wrote:
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Re: Converting Primaries
Troy Sobotka <troy.s...@...>
Convert the xy coordinates to XYZ, with red being the first column, then green, then blue. That forms a 3x3 matrix for taking linearized RGB to the XYZ domain.
toggle quoted messageShow quoted text
From there you would need to perform a chromatic adaptation via Bradford or CAT02 to the AP1 or AP0 white point required. The final matrix would be from XYZ, achromatic point aligned, to AP1 or AP0 RGB, which are well documented. With respect, TJS
On Wed, Mar 7, 2018, 8:20 AM Markel <markel.j...@...> wrote:
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"pure virtual method called" crash when developing nuke OP plugin with OCIO
Yanli Zhao <yanli...@...>
Hi All, I'm a new to both Nuke and OCIO. For some reason, I need to develop a nuke OP similar to OCIOFileTransform. But when I add just one simple line such as "OCIO::GetCurrentConfig()",
I got a crash with the terrible "Pure Virtual method called" error. I was
wondering that maybe I was linking the wrong version of OCIO. Has anyone
met with similar issues? I'm developing plugin for Nuke 10.0v5 with
OCIO 1.0.9.
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Pure Virtual Function crash when developing a nuke OP with OCIO / OpenColorIO API
Yanli Zhao <yanli...@...>
Hi, For some reason, I need to write a pixelOp similar to OCIOFileTransform with OCIO API. But when I add just one simple line such as "OCIO::GetCurrentConfig()", I got a crash with the terrible "Pure Virtual Function" error. I was wondering that maybe I was linking the wrong version of OCIO. Has anyone met with similar issues? I'm developing plugin for Nuke 10.0v5 with OCIO 1.0.9 on Linux. Apple
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Support of the Java interface
Patrick Hodoul <patric...@...>
Hi all, I would like to know if OCIO java public interface is used? and should be maintained ? OCIO currently supports three public interfaces: 1) The native C++, 2) The Python interface (built on top of the C++ one), and 3) the Java one (built on top of of the C++ one) It seems that Java interface is not so much used by tools. My 2 cents... Any feedbacks ? Regards, Patrick.
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Re: 1.1.0 Release
Sean Cooper <se...@...>
Version 1.1.0 has just been released and is located on the "RB-1.1" branch for long-term support. Please continue to evaluate and we will release patches as necessary. Thanks!
On Fri, Jan 12, 2018 at 1:47 PM, Richard Shaw <hobbe...@...> wrote:
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Re: 1.1.0 Release
Richard Shaw <hobbe...@...>
Crap, never mind again... Richard
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Re: 1.1.0 Release
Richard Shaw <hobbe...@...>
Ok, I spoke too soon, this doesn't look like a missing package problem: ! Package babel Error: You haven't specified a language option. See the babel package documentation for explanation. Thanks, Richard
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Re: 1.1.0 Release
Richard Shaw <hobbe...@...>
I'm getting it figured out... It's missing texlive packages but I don't want to install EVERYTHING because there's tons of packages, so I'm having to find what's missing one at a time and keep trying to build. Thanks, Richard
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