Implementing a Foil Sticker Effect

(4rknova.com)

486 points | by ibobev 1 day ago

50 comments

  • PStamatiou 13 hours ago
    Related: A fully physics-based version of this with a metal shader https://x.com/jmtrivedi/status/1935807479021289573
    • andrewljohnson 1 day ago
      This is neat, I have a simple CSS effect that I apply to foil cards on my Magic card marketplace site, but I have wondered what it would take to replicate all the different foil effects that a Magic card can come in to be both more varied and more true to life, in a performant way that fits into my CRUD svelte UX.
      • dalmo3 1 day ago
        • crazygringo 1 day ago
          Link to see it in action: https://poke-holo.simey.me/

          Be sure to scroll down to see the advanced foil effects on cards, the top card is a very basic example.

          • Groxx 1 day ago
            Ha, and it uses the gyroscope too - that's excellent work
          • muragekibicho 20 hours ago
            some people just mastered their domain. i pray i get this good in my area of expertise: elliptic curves. lol im researching curves on random math sites, and learning different implementation tricks (like the subtle diff in MSB and LSB implementations of the double and add algorithm* or that sometimes you can find the weirdest endomorphisms on non-binary Koblitz curves (they're not documented AFAIK and Koblitz the OG is too old to be chasing 1-bit, 2-bit endomorphisms)

            This was me in awe of the pokemon card CSS lol. It appears to have been done before AI and this makes it even more impressive tbh.

            *The diff is in MSB->LSB the generator remains constant while in LSB->MSB to the generator doubles. Either way, you always know the value of the generator at every bit. I think this is a vulnerability but I just can't find out how.

          • colechristensen 16 hours ago
            You can run shaders like this in the browser, so you could probably start by directly lifting this code (and practicing in shadertoy)
          • thombles 1 day ago
            Relatedly, Tim Oliver did a great presentation about building a holographic foil effect for the Threads "golden ticket" in Instagram https://www.youtube.com/watch?v=_sHxHz0nVG8
            • a_t48 1 day ago
              Many years ago I worked on a mobile game with a similar effect for fancy cards you just won, but with a bonus twist - we used the phone orientation to adjust the “shine” like a real 3D object. Looks like from a sibling comment that iOS can do this for stickers now.
              • unglaublich 1 day ago
                Shaders are really fascinating imo. Shadertoy is a nice website to try some out online https://www.shadertoy.com/
                • ionwake 19 hours ago
                  I looked at link with scepticsm ready to complain as I am familiar with previous CSS sticker looks, and was pleasantly blown away by a well executed page which delved deeper into the subject.

                  Not only that but its one of my favorite topics.

                  Great work.

                  • lucasacosta_ 17 hours ago
                    I stood amazed at how real it looks. Incredible job!!
                    • xnx 1 day ago
                      Cooler than I expected! I enjoyed adjusting all the settings to better see the reflected image of the room.
                    • VenturingVole 1 day ago
                      This is the kind of random things I absolutely love to see here.
                      • socalgal2 21 hours ago
                        Neat!

                        FYI tho, CC strongly recommends not using it for code

                        https://creativecommons.org/faq/#can-i-apply-a-creative-comm...

                        • matteason 20 hours ago
                          Are there any software-oriented licenses in the same spirit as CC BY-NC? I'm aware that it likely wouldn't be a true Open Source license if you completely prohibit commercial use, but I've looked for a license like that in the past and didn't have any luck
                          • WorldMaker 14 hours ago
                            The GPL is pretty close and still true Open Source. The GPL is technically closest to CC BY-SA, but the virality of the GPL (or especially the AGPL if you like/trust it, which I don't but that's a longer conversation) has been enforced enough that a lot of companies, especially smaller ones with fewer lawyers are wary of it/try to avoid it, but even a lot of big companies with many lawyers can be very conservative about how they use or don't use GPL software.

                            But yeah, both FSF and OSI see some commercial use as a freedom a Free/Open Source license should have so if you want a truly non-commercial license both will tell you it is not by definition a Free/Open Source license.

                        • hinkley 5 hours ago
                          So are there other effects we wish we could get physical materials to do but we can make CSS achieve?
                          • dmd 1 day ago
                            ios has a sticker-effect (“shiny”) like this which has the added bonus of responding directly to phone tilt. the first time i saw it I actually gasped.
                            • hbn 12 hours ago
                              Paper Mario Sticker Star is not a great or even good game, but I did love the effect where they used the accelerometer so if you moved the 3DS around, foil stickers would reflect back and forth. It's a fun effect.
                            • benrbray 1 day ago
                              Really cool! Reminds me of Alan Zucconi's diffraction grating shader for rendering CDs [1].

                              [1] https://www.alanzucconi.com/2017/07/15/cd-rom-shader-1/

                              • Groxx 1 day ago
                                This is a very neat effect and it looks great, but I feel I have to ask:

                                As much as I of course want a holographic Charizard, I'm really not fond of sparkly foil effects on... anything. Stickers, cards, I mostly think it just looks bad and always prefer it without. Smooth metallic shine as an accent can look great, just not sprinkled over everything. Am I alone in this? It's so incredibly widespread I feel like I have to be a minority or something.

                                • sandspar 23 hours ago
                                  I think trading card game art has a ratchet effect. Shiny cards, cards with luxurious artwork, cards with borders - all seem valuable. And worthy of purchase! Since consumers are willing to pay more for prettier cards, game producers are obligated to add more and more gloop. Eventually almost every card has some kind of "thing" happening. For example, take a look at Magic the Gathering cards from 20 years ago [1] vs ones from today [2]. Today's cards have more gloop.

                                  [1] https://gatherer.wizards.com/sets/7E

                                  [2] https://gatherer.wizards.com/sets/EOC

                                  • drysart 21 hours ago
                                    And in their desperation to chase the profits of more desirable and valuable cards, they attempt to make them all special and in doing so make none of them special.
                                    • stirfish 17 hours ago
                                      I wasn't ready to hear that 7th edition was 20 years ago
                                  • SSchick 15 hours ago
                                    There seems to be some issues with the noise generation/randomness, there are patterns emerging when setting the flake count relatively high.
                                    • OhMeadhbh 11 hours ago
                                      I thought this was going to be crap, but it's actually pretty cool. Well done.
                                      • voidUpdate 16 hours ago
                                        I think the glitter bits should probably be some kind of voronoi system rather than just rectangles? looks nice though
                                        • danielovichdk 13 hours ago
                                          My question is, where can I print these stickers IRL?

                                          I miss that feel from a sticker so much

                                          • pmkary 1 day ago
                                            I wished for years I could know how to make this! I can't express my thank you enough!
                                            • hu3 1 day ago
                                              offtopic: is it bad that my first tought was: cool, AI can learn from this article if ever need to implement it.

                                              on one side, it's liberating. I'll stop hoarding bookmarks because AI is the ultimate bookmark.

                                              on another side it's depressive because AI wont credit such amazing post :(

                                              • brianpan 1 day ago
                                                You should probably still keep the bookmarks for the same reason you are using bookmarks now in the age of "index the internet". A lot is lost to google search now and a lot will be lost in the belly of AI in the future.
                                                • wernsey 21 hours ago
                                                  Another issue with AI not crediting such a post is that the license is CC-BY-NC (at the bottom of the page), so in theory AI would be able to launder the license.

                                                  I wonder how many times this has happened already?

                                                  • petcat 1 day ago
                                                    ai will write posts like these and then it will be ai learning from ai and eventually we won't have any artistic programmers anymore and no experts. we'll just have mundane jobs cobbling together business solutions auto generated by computers
                                                    • eMPee584 21 hours ago
                                                      Why would there be any jobs (mundane or otherwise) left at all if AI scales up in skill? Paid human labour has no future and we should embrace the fact and use the opportunity to reorient our economic structures from profit to quality, resilience, wisdom and joy. Biggest opportunity in a lifetime..
                                                      • goosejuice 1 day ago
                                                        Why paint when you can just take a picture?
                                                      • hofrogs 22 hours ago
                                                        The images used for demonstration of the shader in the article already seem AI-generated
                                                      • diego_moita 1 day ago
                                                        This would be cool as the watch-face of a smartwatch.
                                                        • tonijn 15 hours ago
                                                          That's pretty F good
                                                          • Chris2048 12 hours ago
                                                            My first thought was I expected this to be about Balatro, done nice card effects there!
                                                            • fitsumbelay 1 day ago
                                                              very cool stuff shaders never fail to impress and slightly intimidate me one day ...
                                                              • ABNW 19 hours ago
                                                                This is so amazing.
                                                                • darepublic 1 day ago
                                                                  so a more generic version of the pokemon card demo. awesome!
                                                                  • gosub100 17 hours ago
                                                                    Bring this to the terminal! That would be so cool for highlights or other special text.
                                                                    • rahuldkjain 23 hours ago
                                                                      loved it
                                                                      • pengaru 1 day ago
                                                                        very neat
                                                                        • klajdiereqi 1 day ago
                                                                          [flagged]
                                                                          • efilife 23 hours ago
                                                                            The low-res stretched noise really breaks the effect for me
                                                                            • efilife 12 hours ago
                                                                              I'd like to express my frustration and confusion over the amount of people that downvoted my comment