Return-Path: Received: from mail-ie0-f169.google.com ([209.85.223.169] verified) by media-motion.tv (CommuniGate Pro SMTP 4.2.10) with ESMTP-TLS id 4911404 for AE-List@media-motion.tv; Thu, 29 Nov 2012 10:14:59 +0100 Received: by mail-ie0-f169.google.com with SMTP id c14so7435052ieb.28 for ; Thu, 29 Nov 2012 01:18:42 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; bh=bu+fRz4j3VF3gfCMN4Zx2/iCLnmdFv7iSb2J9VgJ230=; b=suvi8PozDM1l7iLAn2Neal/LAEfSHvIY2/+cWEoWzmcBvgqGFzIHnkdZFA5Js56noq gz0UY17c8zMHYicoZsNLm53zgUO4NON77MTqYRupkGTmOtVitm0GZlD2fa3YTDXy8mSX f4DObu/86Asaz8JJ1LPZkCkpO5aSTxVMohhWsXJlyAtM95Hw9s0Z2nTnB2BvkjhUxJRr FkKeglXHtN6PYQhCKl49aoFK6P983TUzYFYZIcbBXh2GW8v7DNXXbjgbFLjVBLY8IMk6 sJOorjooH71ry+MO9cw3GZPweXTcDEMpqnFXG0ctS6EhCNAh1sEmD2ef3HAc6gLuNJWN ux+w== MIME-Version: 1.0 Received: by 10.42.74.73 with SMTP id v9mr19400176icj.37.1354180722564; Thu, 29 Nov 2012 01:18:42 -0800 (PST) Received: by 10.43.96.199 with HTTP; Thu, 29 Nov 2012 01:18:42 -0800 (PST) In-Reply-To: References: Date: Thu, 29 Nov 2012 10:18:42 +0100 Message-ID: Subject: Re: [AE] Arri flat From: =?ISO-8859-1?Q?Simon_Bj=F6rk?= To: After Effects Mail List Content-Type: multipart/alternative; boundary=90e6ba6e8490ee1d8b04cf9ec4e0 --90e6ba6e8490ee1d8b04cf9ec4e0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable If you're using the Nuke-settings, which I assume you are, the AlexaLogC curve is using the same math as described in the the LogC documents. So in other words, yes it should make a correct conversion from logC -> color-space of your choice. In fact, I would trust it more than a generated lut from the Arri website. Cheers, Simon 2012/11/28 Byron Nash > Thanks for the tip on OpenColorIO Simon. I have it installed now and am > giving it a go. Have you found the Alexa LogC profile in there pretty muc= h > the same as the one on the Alexa site? > > > On Wed, Nov 28, 2012 at 4:06 AM, Simon Bj=F6rk wro= te: > >> Have a look at OpenColorIO ( >> http://fnordware.blogspot.se/2012/05/opencolorio-for-after-effects.html) >> if you need to convert footage between different color-spaces. It will >> perfectly round-trip Alexa LogC for example. >> >> Best regards, >> Simon >> >> 2012/11/27 >> >> you could also make that adjustment layer a guide layer so that it never >>> accidentally renders >>> >>> tt >>> >>> ------------------------------ >>> *From: *"Byron Nash" >>> >>> * >>> *I normally put the Alexa LUT on an adjustment layer and do all my VFX >>> under that. That way I know what I'm adding is going to look balanced w= ith >>> the shot when the look is applied. Before rendering I turn off the >>> adjustment layer and render to ProRes 4444. The colorist here is using >>> resolve so he can grade the shot from the same point that every other s= hot >>> starts at. All of my work should travel correctly with it. I often deli= ver >>> mattes to the colorist as well to allow them greater control over gradi= ng >>> the VFX. I always keep the AE file in 16bits as a minimum and often wor= k in >>> 32bit linear. >>> >>> >> > --90e6ba6e8490ee1d8b04cf9ec4e0 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable If you're using the Nuke-settings, which I assume you are, the AlexaLog= C curve is using the same math as described in the the LogC documents. So i= n other words, yes it should make a correct conversion from logC -> colo= r-space of your choice. In fact, I would trust it more than a generated lut= from the Arri website.

Cheers,

Simon

20= 12/11/28 Byron Nash <byronnash@gmail.com>

Thanks for the tip on OpenColorIO Simon. I have it installed now and am giv= ing it a go. Have you found the Alexa LogC profile in there pretty much the= same as the one on the Alexa site?

On Wed, Nov 28, 2012 at 4:06 AM, Simon Bj=F6rk <bjork.simon@gmail.com<= /a>> wrote:
Have a look at OpenColorIO (http://fnordware.blo= gspot.se/2012/05/opencolorio-for-after-effects.html) if you need to con= vert footage between=A0different=A0color-spaces. It will perfectly round-tr= ip Alexa LogC for example.

Best regards,
Simon

2012/11/27 <pixelbot@comcast.net>

you could also make th= at adjustment layer a guide layer so that it never accidentally renders
tt

From: "Byron Nash" <byronnash@gmail.com= >

I normally put the Alexa LUT on an adjustment layer and do a= ll my VFX under that. That way I know what I'm adding is going to look = balanced with the shot when the look is applied. Before rendering I turn of= f the adjustment layer and render to ProRes 4444. The colorist here is usin= g resolve so he can grade the shot from the same point that every other sho= t starts at. All of my work should travel correctly with it. I often delive= r mattes to the colorist as well to allow them greater control over grading= the VFX. I always keep the AE file in 16bits as a minimum and often work i= n 32bit linear.

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