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BS: Dragon Optical Illusion
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Subject: BS: Dragon Optical Illusion From: Clinton Hammond Date: 18 Nov 04 - 04:36 PM This is just too fun to NOT share! http://www.grand-illusions.com/dragon.htm :-) |
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Subject: RE: BS: Dragon Optical Illusion From: My guru always said Date: 18 Nov 04 - 04:58 PM Try here |
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Subject: RE: BS: Dragon Optical Illusion From: Hollowfox Date: 18 Nov 04 - 05:08 PM Wow! Thanks. |
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Subject: RE: BS: Dragon Optical Illusion From: jeffp Date: 18 Nov 04 - 05:25 PM That's just too bizarre for words. Thanks, Clinton! |
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Subject: RE: BS: Dragon Optical Illusion From: Wolfgang Date: 18 Nov 04 - 05:38 PM That's a nice illusion, fun to view. The visual cue misleading you here is movement parallax. I'll never forget when I first saw this illusion in Zurich: They had in a hallway two identical faces one protruding as usual the other hollow. The one face looked straight ahead and the other followed you. You couldn't go near the two faces to study them and see the trick. A young boy asked his father why the two heads were so different. The father explained him that he can't understand this yet because it is done by holographic projection. The son was mightyly impressed and I swallowed down any comment. I couldn't do that to a six year old looking admiringly at his father. The effect by the way was known and used already more than 2000 years ago be the Greek. Wolfgang |
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Subject: RE: BS: Dragon Optical Illusion From: Gypsy Date: 18 Nov 04 - 10:13 PM I had plaster pictures like this as a child......as soon as i have ink in my printer, im printing him out and trying it! |
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Subject: RE: BS: Dragon Optical Illusion From: Ellenpoly Date: 19 Nov 04 - 12:30 AM Very cool, thanks! |
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Subject: RE: BS: Dragon Optical Illusion From: The Fooles Troupe Date: 19 Nov 04 - 02:16 AM I can sympathise with your problem Gypsy, I'm getting on in years too... |
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Subject: RE: BS: Dragon Optical Illusion From: katlaughing Date: 19 Nov 04 - 06:34 AM Kewl, thanks! Thanks, Wolfgang for the explanation, too. |
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Subject: RE: BS: Dragon Optical Illusion From: freightdawg Date: 19 Nov 04 - 12:10 PM The video is really cool. I printed the thingie out and folded and taped it together, but for some reason when I see it in 3-D my eye is not fooled (I've tried it with both eyes and with one eye closed.) Really cool video though. I just wish my little creation had the same effect. Just looking at it again, I think its because my 3-D version collects light from different sources and so there are shadows that tip off the parallax phenomenon. Oh well, its fun anyway. Freightdawg |
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Subject: RE: BS: Dragon Optical Illusion From: Gypsy Date: 19 Nov 04 - 09:37 PM Yeah, but i look pretty darned good for 2K! ;>) |
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Subject: RE: BS: Dragon Optical Illusion From: GUEST,.gargoyle Date: 19 Nov 04 - 10:56 PM UMMM ... I don't see it?????
Image will not load.
But, then again, I don't see most of the world... anything like these bastions of the MC currently see an American dragon.
Sincerely,
Ok....I get it...the dragon is a metaphor...it is only revealed to those leaning to the left....therefore my browser won't load the image! |
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Subject: RE: BS: Dragon Optical Illusion From: Clinton Hammond Date: 20 Nov 04 - 03:48 AM " printed the thingie out and folded and taped it together, but for some reason when I see it in 3-D my eye is not fooled " Try looking at it from further back.... some have said back as far at 10 feet.... |
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Subject: RE: BS: Dragon Optical Illusion From: GUEST,Jon Date: 20 Nov 04 - 05:17 AM Tried it at that distance but it still doesn't work for me. I thought perhaps I had folded it wrongly but Pip and I both had a go at making one and our folding ended up the same except hers is neater! |
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Subject: RE: BS: Dragon Optical Illusion From: Clinton Hammond Date: 20 Nov 04 - 09:18 AM Some also do have to 'work' and unfocusing their eyes, after they 'see' the trick... Mine works, but not as well as it did before I knew the secret... |
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Subject: RE: BS: Dragon Optical Illusion From: Raedwulf Date: 21 Nov 04 - 05:47 AM You feeling alright, CH? That was neither curmudgeonly, nor cantankerous (alright, it was a dragon, but yer not female, so it don't count!). Yer'll ruin yer reputation... ;-) Fun video. I can't help feeling the narrator sounds remarkably like Oliver Postgate (Bagpuss, The Clangers, et al), though! |
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Subject: RE: BS: Dragon Optical Illusion From: Cluin Date: 22 Nov 04 - 04:04 AM Try taking a black marker and blackening the edge of the paper (I printed mine on card stock) around the head area especially. It helps. |
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Subject: RE: BS: Dragon Optical Illusion From: Clinton Hammond Date: 22 Nov 04 - 04:08 AM Printed big, on 2 pieces of card stock ('head' on one, and body on the other) would be brill! |
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Subject: RE: BS: Dragon Optical Illusion From: Cluin Date: 22 Nov 04 - 04:21 AM Also, try sitting it on a white surface to reflect light up on the underside plane of the head recess so it looks like it is the top of the head. |
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Subject: RE: BS: Dragon Optical Illusion From: GUEST,Jon Date: 22 Nov 04 - 04:27 AM That was my original plan Clinton - to make one out of a sheet of A4 copy paper to make sure I got the folding right and then to try to make one out of 2 A4 sheets of card. I didn't bother as I couldn't get the illusion to work on the small one. |
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Subject: RE: BS: Dragon Optical Illusion From: GUEST,Wolfgang Date: 22 Nov 04 - 12:02 PM It is more easily seen from more distance, with one eye closed and with a non-moving head. Give it some time but even then not everybody may see it. Those who get that effect at arm length (only possible with one eye closed I'd say) may try the following: Hold the dragon at the other side (not the side you're viewing it) and when you have the effect stable then very slowly waggle (or move) the dragon a bit and feel what happens (your proprioception and your vision give you conflicting information and that can be funny). Wolfgang |
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Subject: RE: BS: Dragon Optical Illusion From: GUEST,TIA Date: 22 Nov 04 - 12:06 PM I put mine up on the top of a bookshelf in the corner of my office. This enforces staying at a distance, provides "up light", and restricts people from going too far around and seeing through the illusion. Didn't point it out to anybody - I'm having great fun letting people notice it and freak out. So far three people have gotten the creepies from it. Thanks Clinton. |
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Subject: RE: BS: Dragon Optical Illusion From: Rt Revd Sir jOhn from Hull Date: 24 Nov 04 - 04:14 AM people that liked that, should look at paintings by M.C. Escher, go to google image search, and put Escher print in the searcher thing. |
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Subject: RE: BS: Dragon Optical Illusion From: moocowpoo Date: 24 Nov 04 - 07:45 AM Thanks Clinton,,,it is a most disturbing but brilliant illusion. I'll make one tomorrow.. The end video of the dragon demo sruck me as poignantly meloncholy, as he says "but as we move around to the back we realise the structure is different, and the illusion....fails", well mabye that's just me. |
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Subject: RE: BS: Dragon Optical Illusion From: moocowpoo Date: 24 Nov 04 - 12:00 PM Well,, I couldn't wait, I stayed up and made the little creature.. I, also found that it was not an incredible effect. I then remembered, years ago there was a fad which involved kitch looking pyramid lamps, with the concave face of a pharoe and a little bulb below, illuminating the face. The effect of this was pretty striking and I thought that this illusion follows the same principles as the dragon one... I noticed that the more shadow on the dragon, the less dramatic the effect... So, It was 3am, I was lying awake, thinking "when I get up, I'll try shining a torch, directly on its face.. Well, again, I couldn't wait, I got up, set the dragon on a white surface, set a torch on a table, 2 metres away, and stood 3 metres away, then walked around....MY GOD IT WAS CREEPY!!!!. This method creates an illusion, every bit as dramatic as the one in the short film.....I found mysels saying "there's our little dragon", that what it does to you.... |
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Subject: RE: BS: Dragon Optical Illusion From: moocowpoo Date: 24 Nov 04 - 12:07 PM I can't stress it enough, use a torch, use a torch!!! |
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Subject: RE: BS: Dragon Optical Illusion From: moocowpoo Date: 24 Nov 04 - 04:25 PM |
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Subject: RE: BS: Dragon Optical Illusion From: *Laura* Date: 24 Nov 04 - 04:54 PM WOW! thats AMAZING! gaaaaaaaaaaaaaaaaaaaaaaasp! I am amazed. |
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Subject: RE: BS: Dragon Optical Illusion From: GUEST,Art Thieme Date: 24 Nov 04 - 09:34 PM And if you set it in the grass on a moon lit night, bend over and look at the moon and this thing backwards and upside-down between your legs, the multiple effects are not only zoftic in the extreme, but the exceptional cleavage revealed is excruciatingly dominant with waves of colors and pelvic spasms like none I've ever experienced. Clinton, thank you so much! Art |
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Subject: RE: BS: Dragon Optical Illusion From: Cluin Date: 25 Nov 04 - 11:24 AM Also, tasting a bit of the burning rope doesn't hurt. |
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Subject: RE: BS: Dragon Optical Illusion From: GUEST,somebody Date: 01 Feb 06 - 05:59 PM where can u get one that u can print out that is not blue? I want Green or red. It looks way better than blue i'd say |
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Subject: RE: BS: Dragon Optical Illusion From: GUEST,u will never no Date: 01 Feb 06 - 06:06 PM Freightdawg,it is probaly because you biult it wrong remember the head is inverted |
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Subject: RE: BS: Dragon Optical Illusion From: Don(Wyziwyg)T Date: 01 Feb 06 - 06:08 PM WOW! Don T. |
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Subject: RE: BS: Dragon Optical Illusion From: Bill D Date: 01 Feb 06 - 07:59 PM somebody: 'u' can't get a blue one until 'you' ask in complete words, properly capitalized. (If you can capitalize Green, why not red and 'i'?) Yes, I'm a pedant at times. |
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Subject: RE: BS: Dragon Optical Illusion From: JohnInKansas Date: 01 Feb 06 - 10:33 PM I have a nice green dragon. "Import PDF" image to Photoshop Elements Choose "Enhance" "Adjust Brightness/Contrast" "Levels" Pick the Blue channel. Slide the LEFT slider about half way across (to the center) OK and save. Any image editor that lets you set the brightness/contrast independently on the 3 separate color channels should get the same effect. Now as soon as the ink gets dry... Martin Gardner is well known for his several books, which never fail to amaze. The "Puzzle Corner" he wrote, for about 30 years, for one of my magazines also showed him to have something of a sadistic streak - although he never failed to come up with elegant solutions to the problems he posed. John |
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Subject: RE: BS: Dragon Optical Illusion From: Splott Man Date: 02 Feb 06 - 07:47 AM MGAS Are you going to Crediton? If so I'll bring you a cut out one I did for work. |
