From: "David Torno" Received: from atl4mhob19.registeredsite.com ([209.17.115.112] verified) by media-motion.tv (CommuniGate Pro SMTP 6.1.0) with ESMTPS id 7149001 for AE-List@media-motion.tv; Wed, 12 Sep 2018 01:58:45 +0200 Received: from null ([10.30.71.182]) by atl4mhob19.registeredsite.com (8.14.4/8.14.4) with ESMTP id w8C09DGq046782 (version=TLSv1/SSLv3 cipher=AES256-SHA256 bits=256 verify=NO) for ; Tue, 11 Sep 2018 20:09:16 -0400 Date: Tue, 11 Sep 2018 20:09:13 -0400 (EDT) Reply-To: David Torno To: After Effects Mail List Message-ID: <1441433312.131817.1536710953688@webmail.networksolutionsemail.com> In-Reply-To: References: Subject: Re: [AE] Photogrammetry an options? MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_Part_131816_1891928341.1536710953671" X-Priority: 3 Importance: Medium X-Mailer: Open-Xchange Mailer v7.8.4-Rev36 X-Originating-Client: open-xchange-appsuite ------=_Part_131816_1891928341.1536710953671 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Chris, Photogrammetry of a car has to be shot very specifically. Even then there i= s a massive amount of cleanup involved to remove noise in the scan, then yo= u have to deal with UV texturing and such. Reflective smooth surfaces like = cars do not solve in photogrammetry. Think about 3D tracking a shiny car. A= ll of the specular hits and reflections confuse the software and it has no = clue what's what. If you have a ton of photos of the car, and the shot is only a pan, I would= find the best photo that matches your shot angle, and do some basic modeli= ng in 3D. Similar to this technique https://www.youtube.com/watch?v=3DC7vLZ= 0ddfSI If you really need a full proper working 3D model, then you will either hav= e to find one online that has been built already, or hire a 3D modeler to p= roperly build it for you. > On September 11, 2018 at 7:56 PM Chris Zwar wrote: >=20 >=20 > Hi all, >=20 > I=E2=80=99m doing some work on a short film with very limited resourc= es, and so am trying to work out how to do some FX with effectively 0 budge= t. >=20 > There=E2=80=99s one shot where the director would like to add a car d= riving past on a road. There=E2=80=99s a basic background plate but no opti= on to shoot the car for real, the car would have to be a 3D model of the sp= ecific car used earlier in the shoot, but which is no longer available. >=20 > The specific car was extensively photographed so I=E2=80=99m wonderin= g if it would be feasible to get a simple 3D model made that would be good = enough for a 60 frame panning shot. There are lots of high-res photos from = all angles, I think the guy who took them intended to build a model via pho= togrammetry. >=20 > I=E2=80=99ve never done it. I=E2=80=99m not a 3D artist. Just wonderi= ng if anyone who has tried building a 3D model from photos can share some a= dvice so I know if it=E2=80=99s even an option. I see it as a possible lear= ning exercise, even to potentially animate the car in the lite C4D that com= es with AE. >=20 > Thanks in advance! >=20 >=20 > -Chris > +---End of message---+ > To unsubscribe send any message to >=20 ------=_Part_131816_1891928341.1536710953671 MIME-Version: 1.0 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Chris,

Photogrammetry of a car has to be shot very spec= ifically. Even then there is a massive amount of cleanup involved to remove= noise in the scan, then you have to deal with UV texturing and such. Refle= ctive smooth surfaces like cars do not solve in photogrammetry. Think about= 3D tracking a shiny car. All of the specular hits and reflections confuse = the software and it has no clue what's what.

If you have a ton o= f photos of the car, and the shot is only a pan, I would find the best phot= o that matches your shot angle, and do some basic modeling in 3D. Similar t= o this technique https://www.youtube.com/watch?v=3DC7vLZ0ddfSI

If yo= u really need a full proper working 3D model, then you will either have to = find one online that has been built already, or hire a 3D modeler to proper= ly build it for you.

On September 11, 2018 at = 7:56 PM Chris Zwar <AE-List@= media-motion.tv> wrote:

Hi all,

I’m doing s= ome work on a short film with very limited resources, and so am trying to w= ork out how to do some FX with effectively 0 budget.

There’s o= ne shot where the director would like to add a car driving past on a road. = There’s a basic background plate but no option to shoot the car for = real, the car would have to be a 3D model of the specific car used earlier = in the shoot, but which is no longer available.

The specific car was= extensively photographed so I’m wondering if it would be feasible to= get a simple 3D model made that would be good enough for a 60 frame pannin= g shot. There are lots of high-res photos from all angles, I think the guy= who took them intended to build a model via photogrammetry.

I’= ;ve never done it. I’m not a 3D artist. Just wondering if anyone wh= o has tried building a 3D model from photos can share some advice so I know= if it’s even an option. I see it as a possible learning exercise, e= ven to potentially animate the car in the lite C4D that comes with AE.
<= br>Thanks in advance!

-Chris
+---End of message---+
To uns= ubscribe send any message to <ae-list-off@media-motion.tv>

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