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    You won't believe it.. but it is true :)

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    • B 離線
      BTM
      最後由 編輯

      I can see it either way if I want to. I even tried to see if I could get it to do half turns and reverse, So it looks like it's facing away, then does a half turn and faces you, then another half turn the other direction, and faces you again, as if it had never changed. and it worked. Creepy... 😲

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      • AnssiA 離線
        Anssi
        最後由 編輯

        This demonstrates our utter failure to see it as a 2D shape. I got this illusion even in the real world when I sat waiting for a plane. On the opposite side of the runway a radar antenna was spinning, silhouetted against the sky. It was quite easy to make it "shift direction".

        Anssi

        securi adversus homines, securi adversus deos rem difficillimam adsecuti sunt, ut illis ne voto quidem opus esset

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        • S 離線
          sorgesu
          最後由 編輯

          This is wild. I can actually take note of the second she changes direction. There is hiccup. A suspended moment when she seems to pause and then she changes direction.
          When I first looked at her, she was consistently going counter clockwise. After a while she suddenly changed direction and I couldn't force the counter clockwise again. Until I started reading the text and then she reversed. It seems that when I first looked at her, I was 'analyzing' the situation. Then when I understood the situation, I automatically switched to right brain mode. Once I read, I was back into left brain. If I looked up at her again, she would switch and go clockwise. Wow.

          Susan Sorger
          Former Seller Hand Rendered Entourage
          Former Canadian Authorized Training Centre, SketchUp

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          • pilouP 離線
            pilou
            最後由 編輯

            It's not a default of the "Windows viewer" or a default of the "Navigator viewer"? 😉

            Frenchy Pilou
            Is beautiful that please without concept!
            My Little site :)

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            • pbacotP 離線
              pbacot
              最後由 編輯

              her posture is for a clockwise direction. Is that part of the visual cues your left brain is using? Dancers commonly lead with their head and outstretched hand.

              So far I can see the other direction with it upside down but it goes back to clockwise when I turn it at all back towards right side up.

              EDIT: I had it all wrong. When you see her go either way it looks like the same posture. Once I saw her going counterclockwise, I couldn't go back it seems.

              MacOSX MojaveSketchUp Pro v19 Twilight v2 Thea v3 PowerCADD

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              • A 離線
                Aidus
                最後由 編輯

                She is not rotating at all. Just wobling from one side to other. It's hard to see but so it is.

                CPU: Intel Core i7 Extreme Edition 965
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                Mobo: Asus P6T Deluxe 1366 Intel X58

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                • pilouP 離線
                  pilou
                  最後由 編輯

                  Another method 😄
                  Blink your eyes and turn your head in the wishing turn wanted 😉

                  Frenchy Pilou
                  Is beautiful that please without concept!
                  My Little site :)

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                  • T 離線
                    tomot
                    最後由 編輯

                    I just caught a glimpse, just before she was sliding down the pole.
                    (I gotta get that checked out soon!)

                    [my plugins](http://thingsvirtual.blogspot.ca/)
                    tomot

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                    • S 離線
                      sorgesu
                      最後由 編輯

                      okay, I checked this out and it is totally debunked here: http://scienceline.org/2007/10/29/ask-hsu-spinning-girl-right-left-brain-hemispheres/

                      It really has nothing at all to do with left brain/right brain perceptions at all.

                      Anssi was completely right. It is about forcing a 3D understanding onto something that is 2D.

                      Susan Sorger
                      Former Seller Hand Rendered Entourage
                      Former Canadian Authorized Training Centre, SketchUp

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                      • T 離線
                        tomasz
                        最後由 編輯

                        @sorgesu said:

                        okay, I checked this out and it is totally debunked here

                        They are writing that associating left or right hemisphere of a brain with a certain activities is just a theory, which is not really true, but the fact that some people cannot see it spinning clockwise proves that it has to do something with imagination... just see the image I have prepared for you:

                        BrainRot.jpg
                        I think that image can help those with 'one direction only' find a way to switch. Why? Take a closer look at each individual frame. I can easily see all those intermediate frames between those when the position of the lady IS certain, as a lady facing me or showing her back 😄!

                        Our imagination decides if we see the front or the back because the silhouette doesn't define it exactly.

                        Tomasz

                        Author of [Thea Render for SketchUp](http://www.thearender.com/sketchup)

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                        • S 離線
                          sorgesu
                          最後由 編輯

                          so maybe you intended to mirror one of the pictures? They appear the same to me.

                          Susan Sorger
                          Former Seller Hand Rendered Entourage
                          Former Canadian Authorized Training Centre, SketchUp

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                          • jeff hammondJ 離線
                            jeff hammond
                            最後由 編輯

                            @sorgesu said:

                            so maybe you intended to mirror one of the pictures? They appear the same to me.

                            me?
                            they're fully different .. i edited that post to put a big space in between the two gifs so you can look at them one at a time

                            dotdotdot

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                            • jeff hammondJ 離線
                              jeff hammond
                              最後由 編輯

                              @unknownuser said:

                              I think that image can help those with 'one direction only' find a way to switch.

                              i think these modifications can really help those seeing only one direction (via the site susan linked to)

                              counter clockwise

                              http://ofb.net/~whuang/imgs/spin/spin-ccw.gif

                              clockwise

                              http://ofb.net/~whuang/imgs/spin/spin-cw.gif

                              dotdotdot

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                              • S 離線
                                sorgesu
                                最後由 編輯

                                Works for me now, though the first one is apt to change direction for a moment.

                                I was looking to see the differences in the direction of the rings in the background and or the darkness. I honestly cannot see the difference. What am I missing?

                                PS> "me?" ????

                                Susan Sorger
                                Former Seller Hand Rendered Entourage
                                Former Canadian Authorized Training Centre, SketchUp

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                                • jeff hammondJ 離線
                                  jeff hammond
                                  最後由 編輯

                                  @sorgesu said:

                                  Works for me now, though the first one is apt to change direction for a moment.

                                  I was looking to see the differences in the direction of the rings in the background and or the darkness. I honestly cannot see the difference. What am I missing?

                                  PS> "me?" ????

                                  the rings in the background are only so you can see the rim lights that the guy added.. he highlighted areas which force you to see one leg on top of the other for instance.. here's the actual link to where the gifs came from..
                                  http://ofb.net/~whuang/imgs/spin/

                                  dotdotdot

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                                  • ely862meE 離線
                                    ely862me
                                    最後由 編輯

                                    i caught the first girl spinning clockwise for several times 😆

                                    Elisei (sketchupper)


                                    Before no life was done on Earth it was THE LIFE ITSELF...GOD
                                    Come and See EliseiDesign

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                                    • S 離線
                                      sorgesu
                                      最後由 編輯

                                      wow, I totally missed those "rim" lights as I was looking for reasons for the differences. Obviously they were being perceived subconsioulsy nontheless. Now that I know what I am lookin for I see it completely.

                                      Thanks for that!

                                      Susan Sorger
                                      Former Seller Hand Rendered Entourage
                                      Former Canadian Authorized Training Centre, SketchUp

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                                      • pilouP 離線
                                        pilou
                                        最後由 編輯

                                        Even with the "White outline" we can force with any problem the dancer follow Clockwise or not! 😮
                                        Blink, see legs, move head and open eyes when turning is well engaged!
                                        Our brain is a little joker 😄
                                        It will be funny of what must see a camera movie from that! 💚
                                        It is like the Schrödinger's cat, till nobody see the dancing girl, in what dance she turn?
                                        Right or left valtz? 💚

                                        Frenchy Pilou
                                        Is beautiful that please without concept!
                                        My Little site :)

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                                        • Mike LuceyM 離線
                                          Mike Lucey
                                          最後由 編輯

                                          ..... I'm dizzy 😄

                                          Support us so we can support you! Upgrade to Premium Membership!

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                                          • david_hD 離線
                                            david_h
                                            最後由 編輯

                                            I just find it interesting that the test case is aHooters Girl.You can tell this is a team of eternally adolescent frat boy scientists. Not that I am prudish or offended at all but you think they could point out the same thing with oh . . .I dunno . .. a dancing hippo or something.
                                            Instead they opt for the Trucker's Mudflap sillohuette. No .. .Women aren't objectified at all. Most ballerina's I have seen aren't built like that!

                                            She's going Clockwise by the way. . . . 💚

                                            If I make it look easy...It is probably easy

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