Return-Path: Received: from mail-tul01m020-f169.google.com ([209.85.214.169] verified) by media-motion.tv (CommuniGate Pro SMTP 4.2.10) with ESMTP-TLS id 4615906 for AE-List@media-motion.tv; Fri, 03 Feb 2012 22:59:47 +0100 Received: by obbta7 with SMTP id ta7so5284032obb.28 for ; Fri, 03 Feb 2012 14:05:40 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :content-type; bh=QQSTrA1nCgfxjvQFouaB0F0a66gtGNxh7pAtq7P7Lic=; b=Zj30DKim47btgTxY5QFmuUxuJgZzH1r2SELx2ERE8bQrlKjOOYkfyZqZOzyqDE3q/H 3ubQFs30QZKbpAskWqUyifIYmqnWJGcmhNcXViTkmF3fZWgI/8H4lcmgU6NPHNjzP8KC e8Hth7U24VycYBz8h+WS71L3ULoWtbWO6RvwA= Received: by 10.182.193.2 with SMTP id hk2mr8285758obc.20.1328306740396; Fri, 03 Feb 2012 14:05:40 -0800 (PST) MIME-Version: 1.0 Received: by 10.182.48.200 with HTTP; Fri, 3 Feb 2012 14:05:20 -0800 (PST) In-Reply-To: References: From: Byron Nash Date: Fri, 3 Feb 2012 17:05:20 -0500 Message-ID: Subject: Re: [AE] Inverse a LUT? To: After Effects Mail List Content-Type: multipart/alternative; boundary=f46d044794cf6a01ba04b8168312 --f46d044794cf6a01ba04b8168312 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable That's what I want to do, Stiller, convert my logo to the same space as the source footage. I need to view the comp with a LUT and be able to remove that easily so I can render it for color correction. Should I be able to put a 1D LUT on the logo and have it match the source footage? On Fri, Feb 3, 2012 at 4:19 PM, Stiller Mail wrote= : > > Is it really? I understand that the actual lut file is a 3d lut but isn't > the colour operation 'just' a curve adjustment? In Nuke there is no probl= em > to use a Colorspace node to convert between logC and rec709, and as far a= s > I know that node only handles 1d luts. So, if you just want to convert yo= ur > logo into logC color space, that shouldn't be a problem, and it will matc= h > with the rest of the footage. But I might be misunderstanding what you wa= nt > to do. > > >> >> On Fri, Feb 3, 2012 at 10:25 AM, Byron Nash wrote: >> >>> It's a 3D LUT Simon. If I try to reverse it on the Arri site, it gives >>> me a 1D LUT. But I haven't figured out how to utilize the 1D properly. = It >>> gives a LUT for each ISO I think. >>> >>> >>> On Fri, Feb 3, 2012 at 4:29 AM, Simon Bj=F6rk = wrote: >>> >>>> Correct me if I'm wrong, but isn't the color operation done with a log= C >>>> to rec709 a 1D lut? >>>> >>>> >>>> 2012/2/3 Brendan Bolles >>>> >>>>> On Feb 2, 2012, at 7:45 PM, Brian Maffitt wrote: >>>>> >>>>> > Curious if this problem will go away with digital projection? >>>>> Eventually digital projectors should be able to represent any visible >>>>> color, I should think. >>>>> >>>>> >>>>> Any visible color, as in the entire gamut of the human eye? We're a >>>>> long way off from that, I'm afraid. Projectors are still making imag= es by >>>>> shining red, green, and blue light up there, so that's a major constr= aint. >>>>> But you'd think they'd be able show everything we can see on a compu= ter >>>>> monitor at least. Maybe they can. >>>>> >>>>> Ironically, part of the forthcoming IIC/ACES standard is the >>>>> "Reference Rendering Transform", which is like a standardized film lo= ok. >>>>> And like other film looks, you can't get fully-saturated colors. >>>>> Similarly, I worked on the most recent "A Christmas Carol" which is = a >>>>> completely digital film (including projection), and yet we still crea= ted a >>>>> film look for it. Somebody thinks that people still like that film l= ook. >>>>> But I assume with digital projection you can opt out if you want. >>>>> >>>>> >>>>> Brendan >>>>> >>>>> >>>>> +---End of message---+ >>>>> To unsubscribe send any message to >>>>> >>>> >>>> >>>> >>>> -- >>>> -------------------------------- >>>> Stiller Studios >>>> Liding=F6/Sweden >>>> >>>> Simon Bj=F6rk >>>> Stiller Studios >>>> +46 (0)8 555 23 560 >>>> Ekholmsn=E4sv=E4gen 40, S-181 41 Liding=F6 >>>> simon@stillerstudios.se >>>> www.stillerstudios.se >>>> >>>> find us: >>>> http://www.eniro.se/query?search_word=3Dstiller+studios&geo_area=3Dlid= ing%F6&what=3Dall >>>> >>>> >>>> >>> >> >> >> >> > > > > -- > brian higgins | senior vfx artist > Sol Design > 312.706.5500 > higgins@soldesignfx.com > soldesignfx.com > > > > > --f46d044794cf6a01ba04b8168312 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable That's what I want to do, Stiller, convert my logo to the same space as= the source footage. I need to view the comp with a LUT and be able to remo= ve that easily so I can render it for color correction. Should I be able to= put a 1D LUT on the logo and have it match the source footage?

On Fri, Feb 3, 2012 at 4:19 PM, Stiller Mail= <simon@sti= llerstudios.se> wrote:

Is it really? I understand that the actua= l lut file is a 3d lut but isn't the colour operation 'just' a = curve adjustment? In Nuke there is no problem to use a Colorspace node to c= onvert between logC and rec709, and as far as I know that node only handles= 1d luts. So, if you just want to convert your logo into logC color space, = that shouldn't be a problem, and it will match with the rest of the foo= tage. But I might be misunderstanding what you want to do.


On Fri, Feb 3, 2012 at 10:25 AM, Byron Nash <byronnash@gmail.com&g= t; wrote:
It's a 3D LUT Simon. If I try to reverse= it on the Arri site, it gives me a 1D LUT. But I haven't figured out h= ow to utilize the 1D properly. It gives a LUT for each ISO I think.=A0


On Fri, Feb 3, 2012 at 4:29 AM, Sim= on Bj=F6rk <simon@stillerstudios.se> wrote:
Correct me if I'm wrong, but isn't t= he color operation done with a logC to rec709 a 1D lut?


2012/2/3 Brendan Bolles &l= t;brendan@fnordw= are.com>
On Feb 2, 2012, at 7:45 PM, Brian Maffi= tt wrote:

> Curious if this problem will go away with digital projection? Eventual= ly digital projectors should be able to represent any visible color, I shou= ld think.


Any visible color, as in the entire gamut of the human eye? =A0We'= ;re a long way off from that, I'm afraid. =A0Projectors are still makin= g images by shining red, green, and blue light up there, so that's a ma= jor constraint. =A0But you'd think they'd be able show everything w= e can see on a computer monitor at least. =A0Maybe they can.

Ironically, part of the forthcoming IIC/ACES standard is the "Referenc= e Rendering Transform", which is like a standardized film look. =A0And= like other film looks, you can't get fully-saturated colors. =A0Simila= rly, I worked on the most recent "A Christmas Carol" which is a c= ompletely digital film (including projection), and yet we still created a f= ilm look for it. =A0Somebody thinks that people still like that film look. = =A0But I assume with digital projection you can opt out if you want.


Brendan


+---End of message---+
To unsubscribe send any message to <ae-list-off@media-motion.tv>



<= /div>--
--------------------------------
Stiller Studios
Liding= =F6/Sweden

Simon Bj=F6rk
Stiller Studios
+46 (= 0)8 555 23 560
Ekholmsn=E4sv=E4gen 40, S-181 41 Liding=F6
simon@stillers= tudios.se
www.stillerstudios.se

find us: http://www.eniro.se/query?search_word=3Dstiller+studios&= amp;geo_area=3Dliding%F6&what=3Dall






<= span style=3D"color:rgb(153,153,153)">



--
brian higgins | senior vfx artist
Sol =A0Design




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