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Impossible Triangle - Realized
By eriban   |   Watch
15 8 927 (1 Today)
Published: July 21, 2013
© 2013 - 2019 eriban
Here's a photo of an impossible triangle. The object is of my own design and was realized via 3D printing by Shapeways. The material is stainless steel, with Bronze Plated finish.

Note: No post-processing was used to achieve the illusion.

Spoiler: If you are curious how the illusion has been realized, you can have a look at this animation: fav.me/d688ndv. Or check out the additional pictures of the model that are available at my Shapeways shop www.shapeways.com/model/114450….
Image size
800x600px 90.32 KB
IMAGE DETAILS
Make
NIKON
Model
COOLPIX S9500
Shutter Speed
1/30 second
Aperture
F/6.2
Focal Length
69 mm
ISO Speed
500
Date Taken
Jul 21, 2013, 1:36:46 PM
Software
COOLPIX S9500V1.0
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Comments (8)
effectrode's avatar
Looks very realistic. Excellent rendering, texture and lighting.
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eriban's avatar
Thanks, but the reason it looks realistic is that this happens to be a photo :-) I have also made 3D renders of impossible objects, but this is an actual photo for a change. I did not use any post-processing though to achieve this illusion. What you see is the photo as I made it. The "impossible" object is one that I designed myself and have realized via 3D printing. Check out the link to the animation in the description to see what the object actually looks like.
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effectrode's avatar
Ah, I get it. Very clever. It must have taken some thinking about and time to actually construct. Bravo!
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eriban's avatar
Thanks!
Reply  ·  
eriban's avatar
Thanks. 

It's indeed nice that the photo does not give (strong) clues on how the illusion has been realized. With the curvy and connected model used here, you basically get for free that shadows and reflections are not shown. The illusion requires a frontal view, and the model's natural position is with only one of the triangle's sides on a surface. This in contrast with the more common, straight and disconnected model, which has one side pointing upwards and two on the surface. In this case, for the illusion to work you need to point the camera downwards and will see any shadows and reflections cast by the model. 
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BatmanWithBunnyEars's avatar
You really breathed new life into this illusion with the unique shape.  I also like how you arranged the photo such that the shadows and reflections don't give it away.
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eriban's avatar
Sorry, the comment below was meant as a reply to your message. Please read it.

Anyway, this gives me the opportunity to also comment on your signature, which I initially forgot. I like it. It made me smile :-)
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BatmanWithBunnyEars's avatar
I read it.  :handshake:  Also, I'm glad you like my signature!  I was hoping people would find it relatable.
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