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Posted on 13/03/15 09:39:07 AM |
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Steve Caplin
Administrator Posts: 7025 Reply  |
Challenge 547: The Marseille Mirror
I spent last weekend in the French Mediterranean port of Marseille, where I savoured a wide range of seafood and historical buildings. Down on the quayside in the old port, a massive sun screen has been erected that towers over the pavement. Designed by Norman Foster, it's remarkable for one main feature: its underside is a highly polished, perfectly reflective mirror. Here's a photograph I took looking at the view beneath the roof. Are you able to reconstruct the reflection? I've saved the mirror area as a path so you can load it easily. Warning: this may well be impossible. High res is here. 
Note: if you find this just too daunting a task, and frankly I wouldn't blame you, then you can have some fun with this monkfish instead. I'll post the full image next Friday. |
Posted on 13/03/15 11:07:26 AM |
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josephine harvatt
Gag Gadgeteer Posts: 2603 Reply  |
Re: Challenge 547: The Marseille Mirror
Have not been around lately because my mother has been taken into hospital but I may have a go at the Monkfish later on _________________ I'm not really bad - I just draw that way |
Posted on 13/03/15 4:49:59 PM |
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GKB
Magical Montagist Posts: 4005 Reply  |
Re: Challenge 547: The Marseille Mirror
Sorry I have been a little absent recently. I've been busy setting up an aerial filming business with a couple of UAVs, building a new website, doing my 'Aerial Work Permit' theory exams for the CAA, walking the dog and trying to find time just to eat! Didn't really have time to do this one this week but the challenge was too big. I'm pretty sure that there are oodles of reflections missing but this is it - take it or leave it. 
p.s. I've suddenly gone off eating monkfish 
_________________ Time flies like an arrow but fruit flies like a banana. |
Posted on 14/03/15 04:52:31 AM |
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vibeke
Kreative Kiwi Posts: 2166 Reply  |
Re: Challenge 547: The Marseille Mirror
I'm taking the easy way out.  _________________ Perfect confidence is granted to the less talented as a consolation prize. |
Posted on 14/03/15 09:46:38 AM |
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DavidMac
Director of Photoshop Posts: 5675 Reply  |
Challenge 547: The Marseille Mirror
Yes it is close to impossible. It requires recreating some hidden surfaces. It'll be a question not so much of getting it correct as getting it convincing even if wrong. So one question please Steve. It is hard to tell from your wide angle distorted photograph .... is the mirror parallel to the ground? _________________ The subtlety and conviction of any Photoshop effect is invariably inversely proportional to the number of knobs on it ....... |
Posted on 14/03/15 2:04:53 PM |
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josephine harvatt
Gag Gadgeteer Posts: 2603 Reply |
Re: Challenge 547: The Marseille Mirror
A humble tribute to a great man: RIP Sir Terry Pratchett http://i536.photobucket.com/albums/ff325/jsharvatt/ripsirterry_zps5mrfr0gb.gif _________________ I'm not really bad - I just draw that way |
Posted on 14/03/15 2:09:12 PM |
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srawland
Pixel Perfectionist Posts: 885 Reply  |
Challenge 547: The Marseille Mirror
Yes, it's hard to tell. I've been surfing for images of it and some look like it's parallel and some look as if it is at an angle to the ground. Steve, please clarify. _________________ I'm still learning. |
Posted on 14/03/15 2:10:09 PM |
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josephine harvatt
Gag Gadgeteer Posts: 2603 Reply |
Re: Challenge 547: The Marseille Mirror
And here is the still version  _________________ I'm not really bad - I just draw that way |
Posted on 15/03/15 06:05:28 AM |
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Mariner
Renaissance Mariner Posts: 3063 Reply  |
Challenge 547: The Marseille Mirror
Yes it is. You can zoom on down to Marseilles using Google Earth and check it out. But, does anyone know what make of vehicle that is? |
Posted on 15/03/15 10:35:18 AM |
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Steve Caplin
Administrator Posts: 7025 Reply |
Challenge 547: The Marseille Mirror
Yes it is. |
Posted on 15/03/15 11:37:53 AM |
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DavidMac
Director of Photoshop Posts: 5675 Reply |
Re: Challenge 547: The Marseille Mirror
Just as well. I have already started on that basis. If it were otherwise I think I would crawl into a corner for a quiet nervous breakdown. This one is EVIL Steve ........   _________________ The subtlety and conviction of any Photoshop effect is invariably inversely proportional to the number of knobs on it ....... |
Posted on 15/03/15 3:39:31 PM |
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Linda Eckert
maîtresse marocaine Posts: 148 Reply |
Re: Challenge 547: The Marseille Mirror
The “roof-mirror” is indeed a very, very tricky task. You can find some examples from the constructor: http://www.fosterandpartners.com/projects/marseille-vieux-port/ good luck! |
Posted on 15/03/15 6:45:37 PM |
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DavidMac
Director of Photoshop Posts: 5675 Reply |
Re: Challenge 547: The Marseille Mirror
Not very happy with this but it would need a very long time to deconstruct this and reconstruct with properly adjusted high viewpoint and parallax. Hopefully a man on a galloping horse wouldn't notice too many of the discrepancies in this attempt. I would definitely prefer that you don't throw too many of these at us Steve ....... it's marginally short of outright sadism .......   _________________ The subtlety and conviction of any Photoshop effect is invariably inversely proportional to the number of knobs on it ....... |
Posted on 15/03/15 7:14:40 PM |
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james
Surreal Spoofer Posts: 1194 Reply  |
Re: Challenge 547: The Marseille Mirror
David, Wouldn't the reflection of the buildings be on the edge of the sunscreen. No guns please. |
Posted on 15/03/15 8:06:09 PM |
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DavidMac
Director of Photoshop Posts: 5675 Reply |
Re: Challenge 547: The Marseille Mirror
No guns ...... 
........ but I don't quite understand the question.
The reflections do start right from the edge of the screen. Can you clarify what you meant a bit? _________________ The subtlety and conviction of any Photoshop effect is invariably inversely proportional to the number of knobs on it ....... |
Posted on 15/03/15 11:17:56 PM |
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james
Surreal Spoofer Posts: 1194 Reply |
Re: Challenge 547: The Marseille Mirror
David. An over hasty observation, I was confused by the expanse of white above the reflected buildings. It didn't occur to me that the roadways might also reflect. |
Posted on 16/03/15 06:38:24 AM |
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tooquilos
Wizard of Oz Posts: 2898 Reply  |
Re: Challenge 547: The Marseille Mirror
Gordon and David..I take my hat off to you both for your efforts. Well done.My head started spinning out even in the conceptual stage of the mirror challenge! So I settled for the monkfish instead! Jo that’s a lovely tribute
http://vimeo.com/122285572  _________________ Dorothy: "there's no place like home!" |
Posted on 16/03/15 09:34:18 AM |
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GKB
Magical Montagist Posts: 4005 Reply |
Re: Challenge 547: The Marseille Mirror
Thanks Anna, There's still a small puddle of molten brain by my keyboard from trying to work out what the reflections ought to look like  _________________ Time flies like an arrow but fruit flies like a banana. |
Posted on 16/03/15 11:17:07 AM |
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DavidMac
Director of Photoshop Posts: 5675 Reply |
Re: Challenge 547: The Marseille Mirror
Yes all that off white in the reflection is roadway. In Steve's picture, because he has exposed for under the canopy, the roadways are burned out and have become featureless clipped white. This works OK on the ground but is very bizarre in the reflection. I can confess immediately that the reflections in my picture are completely wrong - especially at the rear. I have cheated. In reality the mirror would be reflecting lower down on the buildings in the background than I have done. Simply flipping the background on itself along the mirror's outer edge, as I have done, gives an obvious symmetry that says "mirror" to the viewer - but it is technically completely incorrect. The real situation is thus: NERDY SPOILER ALERT!! !! !! !! May be injurious to peace of mind.  Untitled by davidmac1943, on Flickr
The building at the mirrors edge is reflected at a quite different height on the building to the direct sightline. Not only this but the direct view of the buildings at the mirrors edge is from below looking up and the reflection at the same edge is a view from above looking down. This is, of course, most obvious on the van in foreground whose reflected view is very much from above. What's more, this shift of viewpoint and parallax is a constantly changing relationship depending on the distance of both the background and the photographer from the mirror's edge!! Not putting you off am I .... ?
I put me off ........  _________________ The subtlety and conviction of any Photoshop effect is invariably inversely proportional to the number of knobs on it ....... |
Posted on 16/03/15 12:15:08 PM |
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puffin31939
Montage Mariner Posts: 383 Reply  |
Re: Challenge 547: The Marseille Mirror
I was put off to start with, David. Having watched Steve's tutorial, I think I will give this week's challenge a miss and concentrate instead on learning the pen tool. It is a skill I really need to learn. Seems like a good excuse to me. _________________ Man cannot change the direction of the wind but he can adjust the sails |
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