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FARVEL BIG TECH
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  3. This illusion was new to me.

This illusion was new to me.

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  • danpiker@mathstodon.xyzD This user is from outside of this forum
    danpiker@mathstodon.xyzD This user is from outside of this forum
    danpiker@mathstodon.xyz
    wrote sidst redigeret af
    #1

    This illusion was new to me. Does whichever dot you look at turn more purple?

    Pretty neat how clearly this lets you see the reduced sensitivity to blue light in the very centre of your vision.

    https://www.schulz-hildebrandt.com/9-purple-dots-illusion/

    https://arxiv.org/abs/2509.11582

    conchoid@mastodon.gamedev.placeC mwichary@mastodon.onlineM otacke@chaos.socialO kcanales02@mastodon.socialK hypercube@social.linux.pizzaH 43 Replies Last reply
    1
    0
    • danpiker@mathstodon.xyzD danpiker@mathstodon.xyz

      This illusion was new to me. Does whichever dot you look at turn more purple?

      Pretty neat how clearly this lets you see the reduced sensitivity to blue light in the very centre of your vision.

      https://www.schulz-hildebrandt.com/9-purple-dots-illusion/

      https://arxiv.org/abs/2509.11582

      conchoid@mastodon.gamedev.placeC This user is from outside of this forum
      conchoid@mastodon.gamedev.placeC This user is from outside of this forum
      conchoid@mastodon.gamedev.place
      wrote sidst redigeret af
      #2

      @Danpiker i don't see it

      pikestreet@ohai.socialP crazyeddie@mastodon.socialC truenorthspice@mastodon.worldT 3 Replies Last reply
      0
      • danpiker@mathstodon.xyzD danpiker@mathstodon.xyz

        This illusion was new to me. Does whichever dot you look at turn more purple?

        Pretty neat how clearly this lets you see the reduced sensitivity to blue light in the very centre of your vision.

        https://www.schulz-hildebrandt.com/9-purple-dots-illusion/

        https://arxiv.org/abs/2509.11582

        mwichary@mastodon.onlineM This user is from outside of this forum
        mwichary@mastodon.onlineM This user is from outside of this forum
        mwichary@mastodon.online
        wrote sidst redigeret af
        #3

        @Danpiker Oh, wow. It does, and incredibly quickly and intensely, too.

        normaloperator@mas.toN 1 Reply Last reply
        0
        • danpiker@mathstodon.xyzD danpiker@mathstodon.xyz

          This illusion was new to me. Does whichever dot you look at turn more purple?

          Pretty neat how clearly this lets you see the reduced sensitivity to blue light in the very centre of your vision.

          https://www.schulz-hildebrandt.com/9-purple-dots-illusion/

          https://arxiv.org/abs/2509.11582

          otacke@chaos.socialO This user is from outside of this forum
          otacke@chaos.socialO This user is from outside of this forum
          otacke@chaos.social
          wrote sidst redigeret af
          #4

          @Danpiker Where is the :hover pseudo-class set? 😅

          1 Reply Last reply
          0
          • danpiker@mathstodon.xyzD danpiker@mathstodon.xyz

            This illusion was new to me. Does whichever dot you look at turn more purple?

            Pretty neat how clearly this lets you see the reduced sensitivity to blue light in the very centre of your vision.

            https://www.schulz-hildebrandt.com/9-purple-dots-illusion/

            https://arxiv.org/abs/2509.11582

            kcanales02@mastodon.socialK This user is from outside of this forum
            kcanales02@mastodon.socialK This user is from outside of this forum
            kcanales02@mastodon.social
            wrote sidst redigeret af
            #5

            @Danpiker
            Cool! Thanks for this.
            I recently watched a YT short on color theory. That was insightful and interesting.

            1 Reply Last reply
            0
            • danpiker@mathstodon.xyzD danpiker@mathstodon.xyz

              This illusion was new to me. Does whichever dot you look at turn more purple?

              Pretty neat how clearly this lets you see the reduced sensitivity to blue light in the very centre of your vision.

              https://www.schulz-hildebrandt.com/9-purple-dots-illusion/

              https://arxiv.org/abs/2509.11582

              hypercube@social.linux.pizzaH This user is from outside of this forum
              hypercube@social.linux.pizzaH This user is from outside of this forum
              hypercube@social.linux.pizza
              wrote sidst redigeret af
              #6

              @Danpiker holy moly that's an incredible effect

              1 Reply Last reply
              0
              • danpiker@mathstodon.xyzD danpiker@mathstodon.xyz

                This illusion was new to me. Does whichever dot you look at turn more purple?

                Pretty neat how clearly this lets you see the reduced sensitivity to blue light in the very centre of your vision.

                https://www.schulz-hildebrandt.com/9-purple-dots-illusion/

                https://arxiv.org/abs/2509.11582

                forteller@tutoteket.noF This user is from outside of this forum
                forteller@tutoteket.noF This user is from outside of this forum
                forteller@tutoteket.no
                wrote sidst redigeret af
                #7

                @Danpiker This is trippy as hell! I also feel like the border is more distinct when it's purple, but I can't really check because they all turn purple when I look at them! 🤯

                forteller@tutoteket.noF 1 Reply Last reply
                0
                • danpiker@mathstodon.xyzD danpiker@mathstodon.xyz

                  This illusion was new to me. Does whichever dot you look at turn more purple?

                  Pretty neat how clearly this lets you see the reduced sensitivity to blue light in the very centre of your vision.

                  https://www.schulz-hildebrandt.com/9-purple-dots-illusion/

                  https://arxiv.org/abs/2509.11582

                  davidtheeviloverlord@mastodon.socialD This user is from outside of this forum
                  davidtheeviloverlord@mastodon.socialD This user is from outside of this forum
                  davidtheeviloverlord@mastodon.social
                  wrote sidst redigeret af
                  #8

                  @Danpiker

                  Yes. Whichever dot I focus on turns purple.

                  clintruin@mastodon.socialC 1 Reply Last reply
                  0
                  • danpiker@mathstodon.xyzD danpiker@mathstodon.xyz

                    This illusion was new to me. Does whichever dot you look at turn more purple?

                    Pretty neat how clearly this lets you see the reduced sensitivity to blue light in the very centre of your vision.

                    https://www.schulz-hildebrandt.com/9-purple-dots-illusion/

                    https://arxiv.org/abs/2509.11582

                    cford@toot.thoughtworks.comC This user is from outside of this forum
                    cford@toot.thoughtworks.comC This user is from outside of this forum
                    cford@toot.thoughtworks.com
                    wrote sidst redigeret af
                    #9

                    @Danpiker Not at first, because I was wearing yellow-tinted sunglasses. When I took them off yes.

                    1 Reply Last reply
                    0
                    • danpiker@mathstodon.xyzD danpiker@mathstodon.xyz

                      This illusion was new to me. Does whichever dot you look at turn more purple?

                      Pretty neat how clearly this lets you see the reduced sensitivity to blue light in the very centre of your vision.

                      https://www.schulz-hildebrandt.com/9-purple-dots-illusion/

                      https://arxiv.org/abs/2509.11582

                      ? Offline
                      ? Offline
                      Gæst
                      wrote sidst redigeret af
                      #10

                      @Danpiker Fascinating! If you force your focus slowly moving towards a circle you can even get a gradiant.

                      1 Reply Last reply
                      0
                      • danpiker@mathstodon.xyzD danpiker@mathstodon.xyz

                        This illusion was new to me. Does whichever dot you look at turn more purple?

                        Pretty neat how clearly this lets you see the reduced sensitivity to blue light in the very centre of your vision.

                        https://www.schulz-hildebrandt.com/9-purple-dots-illusion/

                        https://arxiv.org/abs/2509.11582

                        arnebab@rollenspiel.socialA This user is from outside of this forum
                        arnebab@rollenspiel.socialA This user is from outside of this forum
                        arnebab@rollenspiel.social
                        wrote sidst redigeret af
                        #11

                        @Danpiker That’s neat! thank you!

                        1 Reply Last reply
                        0
                        • danpiker@mathstodon.xyzD danpiker@mathstodon.xyz

                          This illusion was new to me. Does whichever dot you look at turn more purple?

                          Pretty neat how clearly this lets you see the reduced sensitivity to blue light in the very centre of your vision.

                          https://www.schulz-hildebrandt.com/9-purple-dots-illusion/

                          https://arxiv.org/abs/2509.11582

                          bltpizza@mastodon.socialB This user is from outside of this forum
                          bltpizza@mastodon.socialB This user is from outside of this forum
                          bltpizza@mastodon.social
                          wrote sidst redigeret af
                          #12

                          @Danpiker Holding my phone at arms length all of the dots are purple.

                          1 Reply Last reply
                          0
                          • danpiker@mathstodon.xyzD danpiker@mathstodon.xyz

                            This illusion was new to me. Does whichever dot you look at turn more purple?

                            Pretty neat how clearly this lets you see the reduced sensitivity to blue light in the very centre of your vision.

                            https://www.schulz-hildebrandt.com/9-purple-dots-illusion/

                            https://arxiv.org/abs/2509.11582

                            daniel_bohrer@chaos.socialD This user is from outside of this forum
                            daniel_bohrer@chaos.socialD This user is from outside of this forum
                            daniel_bohrer@chaos.social
                            wrote sidst redigeret af
                            #13

                            @Danpiker interestingly it works better for me on the smaller thumbnail than on the full version of the image

                            1 Reply Last reply
                            0
                            • conchoid@mastodon.gamedev.placeC conchoid@mastodon.gamedev.place

                              @Danpiker i don't see it

                              pikestreet@ohai.socialP This user is from outside of this forum
                              pikestreet@ohai.socialP This user is from outside of this forum
                              pikestreet@ohai.social
                              wrote sidst redigeret af
                              #14

                              @conchoid @Danpiker this has never worked for me either!

                              1 Reply Last reply
                              0
                              • danpiker@mathstodon.xyzD danpiker@mathstodon.xyz

                                This illusion was new to me. Does whichever dot you look at turn more purple?

                                Pretty neat how clearly this lets you see the reduced sensitivity to blue light in the very centre of your vision.

                                https://www.schulz-hildebrandt.com/9-purple-dots-illusion/

                                https://arxiv.org/abs/2509.11582

                                mhwombat@mastodon.socialM This user is from outside of this forum
                                mhwombat@mastodon.socialM This user is from outside of this forum
                                mhwombat@mastodon.social
                                wrote sidst redigeret af
                                #15

                                @Danpiker For me, the dot that I'm looking at doesn't change, but the remaining dots fade into the background.

                                amosmulder@mastodon.socialA P 2 Replies Last reply
                                0
                                • danpiker@mathstodon.xyzD danpiker@mathstodon.xyz

                                  This illusion was new to me. Does whichever dot you look at turn more purple?

                                  Pretty neat how clearly this lets you see the reduced sensitivity to blue light in the very centre of your vision.

                                  https://www.schulz-hildebrandt.com/9-purple-dots-illusion/

                                  https://arxiv.org/abs/2509.11582

                                  philsalkie@mindly.socialP This user is from outside of this forum
                                  philsalkie@mindly.socialP This user is from outside of this forum
                                  philsalkie@mindly.social
                                  wrote sidst redigeret af
                                  #16

                                  @Danpiker

                                  Have a look at:

                                  https://gamesx.com/misctech/visual.htm

                                  Your eyes have much lower resolution in blue light than in red or green, the article demonstrates that increasing the size of the blue pixels by 9 times (3x3) makes an almost imperceptible change in the image. Link rot has taken the extra images and a diagram showing a proposed pixel layout of a big blue diamond surrounded by small red and green squares.

                                  eliocamp@mastodon.socialE 1 Reply Last reply
                                  0
                                  • philsalkie@mindly.socialP philsalkie@mindly.social

                                    @Danpiker

                                    Have a look at:

                                    https://gamesx.com/misctech/visual.htm

                                    Your eyes have much lower resolution in blue light than in red or green, the article demonstrates that increasing the size of the blue pixels by 9 times (3x3) makes an almost imperceptible change in the image. Link rot has taken the extra images and a diagram showing a proposed pixel layout of a big blue diamond surrounded by small red and green squares.

                                    eliocamp@mastodon.socialE This user is from outside of this forum
                                    eliocamp@mastodon.socialE This user is from outside of this forum
                                    eliocamp@mastodon.social
                                    wrote sidst redigeret af
                                    #17

                                    @PhilSalkie @Danpiker Huh. Does this means that we shouldn't be writing small text or rendering small details in blue?

                                    philsalkie@mindly.socialP 1 Reply Last reply
                                    0
                                    • danpiker@mathstodon.xyzD danpiker@mathstodon.xyz

                                      This illusion was new to me. Does whichever dot you look at turn more purple?

                                      Pretty neat how clearly this lets you see the reduced sensitivity to blue light in the very centre of your vision.

                                      https://www.schulz-hildebrandt.com/9-purple-dots-illusion/

                                      https://arxiv.org/abs/2509.11582

                                      rletot@mamot.frR This user is from outside of this forum
                                      rletot@mamot.frR This user is from outside of this forum
                                      rletot@mamot.fr
                                      wrote sidst redigeret af
                                      #18

                                      @Danpiker
                                      Amazing, I feel like my smartphone can track my eyes 😃

                                      1 Reply Last reply
                                      0
                                      • danpiker@mathstodon.xyzD danpiker@mathstodon.xyz

                                        This illusion was new to me. Does whichever dot you look at turn more purple?

                                        Pretty neat how clearly this lets you see the reduced sensitivity to blue light in the very centre of your vision.

                                        https://www.schulz-hildebrandt.com/9-purple-dots-illusion/

                                        https://arxiv.org/abs/2509.11582

                                        howtophil@mastodon.socialH This user is from outside of this forum
                                        howtophil@mastodon.socialH This user is from outside of this forum
                                        howtophil@mastodon.social
                                        wrote sidst redigeret af
                                        #19

                                        @Danpiker It turns... a slightly darker blue, I think?

                                        1 Reply Last reply
                                        0
                                        • danpiker@mathstodon.xyzD danpiker@mathstodon.xyz

                                          This illusion was new to me. Does whichever dot you look at turn more purple?

                                          Pretty neat how clearly this lets you see the reduced sensitivity to blue light in the very centre of your vision.

                                          https://www.schulz-hildebrandt.com/9-purple-dots-illusion/

                                          https://arxiv.org/abs/2509.11582

                                          cherieherrjones@mastodon.socialC This user is from outside of this forum
                                          cherieherrjones@mastodon.socialC This user is from outside of this forum
                                          cherieherrjones@mastodon.social
                                          wrote sidst redigeret af
                                          #20

                                          @Danpiker I definitely see it. Very cool!

                                          1 Reply Last reply
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