From: "Phil Spitler" Received: from mail-we0-f175.google.com ([74.125.82.175] verified) by media-motion.tv (CommuniGate Pro SMTP 4.2.10) with ESMTP-TLS id 5493805 for AE-List@media-motion.tv; Thu, 05 Jun 2014 13:20:21 +0200 Received: by mail-we0-f175.google.com with SMTP id p10so900460wes.20 for ; Thu, 05 Jun 2014 04:20:21 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:content-type:message-id:mime-version :subject:date:references:to:in-reply-to; bh=3/IAjaAK7H24YbM1InTNnhCOBvA/7a4mEGH2jR7dt3E=; b=kgDzUb5Wz/xoqPK8RrTW9I++RtwKkDiLFOToommxseh8Svnd2BLvOhCSd1oYfjWCsL TXlscA6h6WtnmHlzQMKRrmBL+HC0XKWPvYMQITPWtTPYaZVjN53URFodXC/u33OYckmY RGxFYi5JIi2tZzXL1ZOxLArgMMiFf+fyV598hkVpec1ccG4jZvyDg0/4koUdIBcg+7N3 iR6N5O36VZ+EDD4/FdwM5nlON1oSR+MYylaOpWKNGtmxaBvs5HLuhLnxFi3IZPmDhqkR 9Ffoxb3XLatoxgSx3GWBcg3elLEr66TCNLAuhRWBxMg/ZgEDvFlUegQJFi3P08t9rIPC VlPg== X-Gm-Message-State: ALoCoQkBpKSVjU3aOqzdUf3yPGX9WHj4PUXoM/9yOTik5VmnX2feKOLB4ZlnqiMT7YjDr8Y7ibuY X-Received: by 10.194.104.129 with SMTP id ge1mr14836314wjb.94.1401967221136; Thu, 05 Jun 2014 04:20:21 -0700 (PDT) Return-Path: Received: from [192.168.0.104] (cpc65978-midd16-2-0-cust126.11-1.cable.virginm.net. [82.11.16.127]) by mx.google.com with ESMTPSA id rw4sm7629546wjb.44.2014.06.05.04.20.19 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Thu, 05 Jun 2014 04:20:20 -0700 (PDT) Content-Type: multipart/alternative; boundary="Apple-Mail=_9B65C3A7-026A-4E4E-9FB1-1776A65BF7D5" Message-Id: Mime-Version: 1.0 (Mac OS X Mail 6.6 \(1510\)) Subject: Re: [AE] Tracking Iphone/Ipad screen replacement - green or not? Date: Thu, 5 Jun 2014 04:20:18 -0700 References: To: "After Effects Mail List" In-Reply-To: X-Mailer: Apple Mail (2.1510) --Apple-Mail=_9B65C3A7-026A-4E4E-9FB1-1776A65BF7D5 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii I have never thought to use rotobrush, I'm curious if people think it's = actually a usable tool for this kind of job, if so then I would switch = to using a grey instead of green. Phil Phil Spitler | Creative Technologist | Bonfire Labs | t : = 415.394.8200 m : 415.571.3139 Website | Facebook | LinkedIn On Jun 5, 2014, at 4:16 AM, Phil Spitler = wrote: > I go back and forth too, most recently I made a dark green screen with = some small patterned tracking markers in the corners. >=20 > The green allowed me to key the fingers off for both the main finger = tap and the reflections. >=20 > It needs to be dark green to avoid spill from the screen contaminating = the finger. >=20 > I used the tracking data to erase the tracking markers from the = reflection pass. >=20 > Phil >=20 >=20 >=20 >=20 > Phil Spitler | Creative Technologist | Bonfire Labs | t : = 415.394.8200 m : 415.571.3139 >=20 > Website | Facebook | LinkedIn >=20 > On Jun 3, 2014, at 7:47 AM, Robert Kjettrup = wrote: >=20 >>=20 >> 2014-06-03 14:41 GMT+02:00 Roei Tzoref : >> thank you Robert. but wouldn't the bright screen lose the blend mode = option in the composite after?.=20 >> notice the glow and flare coming from the sun creating that lighting = on the screen, >> and of course there are real reflections where you see the girls face = (sec 37).=20 >>=20 >> when you put and image on that black and use screen mode you're = pretty much done. (if the track is good..) >>=20 >>=20 >>=20 >>=20 >> yes, you would loose the easy blend mode compositing, but it was more = to get the screen lighting on the hand that is much harder to fake than = the reflection. There is almost always a trade-off for doing it one way = or the other. So there really is no 1 way to do it correctly, it all = depends on the shot and what lighting you have. >>=20 >> And thanks to Rick about the noise pattern trick, never really = thought about that, but it ofcourse makes perfect sense when using = Mocha. i guess you have various noise patterns sizes depending on how = far away the screen is in the shot? >>=20 >> Robert >> =20 >=20 --Apple-Mail=_9B65C3A7-026A-4E4E-9FB1-1776A65BF7D5 Content-Transfer-Encoding: 7bit Content-Type: text/html; charset=us-ascii I have never thought to use rotobrush, I'm curious if people think it's actually a usable tool for this kind of job, if so then I would switch to using a grey instead of green.

Phil




signature1 Phil Spitler  |  Creative Technologist   |  Bonfire Labs  |  t : 415.394.8200  m : 415.571.3139

Website | Facebook | LinkedIn

On Jun 5, 2014, at 4:16 AM, Phil Spitler <AE-List@media-motion.tv> wrote:

I go back and forth too, most recently I made a dark green screen with some small patterned tracking markers in the corners.

The green allowed me to key the fingers off for both the main finger tap and the reflections.

It needs to be dark green to avoid spill from the screen contaminating the finger.

I used the tracking data to erase the tracking markers from the reflection pass.

Phil




signature1 Phil Spitler  |  Creative Technologist   |  Bonfire Labs  |  t : 415.394.8200  m : 415.571.3139

Website | Facebook | LinkedIn

On Jun 3, 2014, at 7:47 AM, Robert Kjettrup <AE-List@media-motion.tv> wrote:


2014-06-03 14:41 GMT+02:00 Roei Tzoref <AE-List@media-motion.tv>:
thank you Robert. but wouldn't the bright screen lose the blend mode option in the composite after?. 
notice the glow and flare coming from the sun creating that lighting on the screen,
and of course there are real reflections where you see the girls face (sec 37). 

when you put and image on that black and use screen mode you're pretty much done. (if the track is good..)




yes, you would loose the easy blend mode compositing, but it was more to get the screen lighting on the hand that is much harder to fake than the reflection. There is almost always a trade-off for doing it one way or the other. So there really is no 1 way to do it correctly, it all depends on the shot and what lighting you have.

And thanks to Rick about the noise pattern trick, never really thought about that, but it ofcourse makes perfect sense when using Mocha. i guess you have various noise patterns sizes depending on how far away the screen is in the shot?

Robert
 


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