Photographing an object orthographically?
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I'm about to start making half a dozen chairs for a client soon, the only caveat on the brief is they are to be exactly like his old ones, because he finds them perfect ergonomically.(I have to agree
Its an aussie version of the airondack with lots of curves.
Of course I'm modeling it and I've been able to scan the smaller components for accurate tracing in su. The larger pieces could be 'lofted' as in boatbuilding but "ho hum".My question is: can I get a spot on othographic view of the larger components with my camera?
I think I understand the various parallax and perspective issues, but say i used full zoom and got far enough away, would that 'flatten' the image?
I wonder whether anybody has any experience with this?Baz.
ps: I've cut 3mm mdf templates already, I have'nt even tried scanning the large ones in sections, t'would be a nightmare, but they should be better to shoot than the actual pieces. -
thanks for reply modelhead, it wasnt going to work accurately enough for me, so I ended up tracing the components in a4 sections and scanning. bit laborious but a good result.
baz -
Modelhead is right to suggest moving out and narrowing the angle of vision. You can also use a view camera and use the swings and tilts to modify the perspective. However perfect orthographic projection would require an infinite distance from the object which is just not practical. However you can also jimmy the perspective in photoshop.
In the attached render I photographed one screw head and one each of two types of holes and then used photoshop to twist the perspective for each screw and hole on the mechanism. If I had set my SU drawing to an othographic perspective I would only have had to do that once instead of hundreds of times, but in this case I wanted some perspective.
When I think adirondack chair and components I think individual flat boards or collections of boards on a plane. I would just shoot the the chair square on for each flat surface, give the surfaces some thickness in SU and then assemble. It seems very straight forward to me. But then everything does until I get into trouble.
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Not a direct answer to your question, but I've thought about purchasing one of these:
for exactly that purpose. It's from http://www.woodcraft.com/family.aspx?FamilyID=20439.
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I WANT ONE! I love it!
baz -
@roger said:
Modelhead is right to suggest moving out and narrowing. the angle of vision. You can also use a view camera and use the swings and tilts to modify the perspective. However perfect orthographic projection would require an infinite distance from the object which is just not practical.
As in not traveling ftl?
http://www.sketchucation.com/forums/scf/posting.php?f=70&t=5112&mode=reply&d=61#
However you can also jimmy the perspective in photoshop. ]
now that is a good idea. I presume you're talkin about the perspective gizmo, which for me is a matter of taste, ie does it look right? But...
In the attached render I photographed one screw head and one each of two types of holes and then used photoshop to twist the perspective for each screw and hole on the mechanism.
Ive no idea how you did that, but its a beautiful thing.
If I had set my SU drawing to an othographic perspective I would only have had to do that once instead of hundreds of times, but in this case I wanted some perspective.
http://www.sketchucation.com/forums/scf/posting.php?mode=quote&f=70&p=29809#
later.
again ?When I think adirondack chair and components I think individual flat boards or collections of boards on a plane. I would just shoot the the chair square on for each flat surface, give the surfaces some thickness in SU and then assemble. It seems very straight forward to me. But then everything does until I get into trouble.
well, there ya go, because there are a few angles as well as curves on several planes to deal with,
and part of the deal with the client was I would provide templates for future incarnations of future generations(if there are any, but I don't labor on that with the client.)
And they are good chairs, so why not?
Hope to load up the skippy when i'm happy with it, with permissione.
bazi think i stuffed up on the quote thing.
"In a perfect world, you would'nt need a word like utopia."
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What is a proper name for an Aussie adirondack chair?
I looked up Aussie aboriginal place names and like "The Cootamundra chair" my wife liked "The Karumba chair as she is from South America and it sounded like "Aye Caramba!, a popular interjection denoting surprise."
Anyhow it is a good looking set of drawings and the chair needs a proper name.
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I don't know if this version of the classic airondack chair is different enough to have it's own name unless it could be the 'Aussie sloucher' or perhaps the 'Lizard chair', as in 'flat out like a lizard'
Had a look at your website, an impressive body of work.
baz -
The body of work may have more to do with age than talent.
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