[{"data":1,"prerenderedAt":473},["ShallowReactive",2],{"project-19454962":3},{"id":4,"name":5,"line":6,"line_source":7,"title":8,"url":9,"domain":10,"maker":11,"posted_at":12,"year":13,"points":14,"comments":15,"rank_in_year":16,"shown_in_year":17,"top":18,"tier":19,"category":20,"subcategory":21,"format":22,"keywords":23,"reception":28,"sentiment":29,"stance_mix":30,"scored_comments":35,"aspects":36,"strip":46,"post_text":48,"what":49,"said":58,"maker_in_thread":168,"shape":179,"grid":183,"attempts":431,"same_week":436,"maker_shows":33,"maker_hidden":465,"reader_version":466,"card":467},"19454962","stereogram-raycaster","A raycaster that renders to random dot stereogram (like Magic Eye)","title","Show HN: A raycaster that renders to random dot stereogram (like Magic Eye)","https:\u002F\u002Fgithub.com\u002Fammonb\u002Fstereogram-raycaster","github.com","ammon",1553189315,2019,277,88,117,2195,6,"legend","creative","stereogram renderer","web_app",[24,25,26,27],"random dot stereogram","autostereogram","magic eye","raycaster","mixed",0.048,{"positive":31,"neutral":32,"mixed":33,"critical":34},9,12,2,7,30,{"design":37,"execution":39,"idea":41,"docs":43,"performance":45},{"positive":38,"critical":38},3,{"positive":40,"critical":38},0,{"positive":42,"critical":40},4,{"positive":44,"critical":40},1,{"positive":40,"critical":44},[38,40,40,44,40,40,40,40,40,38,40,40,47,38,38,40,40,40,38,38,40,40,40,40,40,40,40,40,38,42,40,40,44,47,33,38,47,44,47,47],5,null,{"problem":50,"audience":48,"pricing":48,"motivation":48,"time_to_build":48,"stack":56,"openness":57,"stage":57,"team_size":57},{"value":51,"source":52,"evidence":53},"Renders 3D scenes as Magic Eye style random dot stereograms.","inferred",[54],{"id":55},"post",[],"unknown",{"praise":59,"objections":87,"requests":110,"questions":134,"alternatives":146},[60,80],{"value":61,"source":62,"evidence":63},"Fun and impressive autostereogram implementation","commenter",[64,68,72,76],{"id":65,"by":66,"text":67},"19455365","throwaway1500","First of all: One of the most awesome use of autostereogram i have ever seen! I always wondered if that was possible. Thank you! Question, did you experiment how to reduce the…",{"id":69,"by":70,"text":71},"19458717","sagebird","This is wonderful. I found it more enjoyable if you add the following css to the canvas: canvas{ image-rendering: pixelated; width: 100vw; height: 100vh; object-fit: cover;…",{"id":73,"by":74,"text":75},"19458706","nydel","oh this is so much fun! love it.",{"id":77,"by":78,"text":79},"19462605","creative-coder","Amazing! didn't think I could get so hooked up to a stereogram renderer.... I'd suggest adding other colorful background variations, apart from random dots, as well. Thanks for…",{"value":81,"source":62,"evidence":82},"Readme is a clear explanation of ray casting",[83],{"id":84,"by":85,"text":86},"19456531","jonny_eh","The readme is perhaps the best explanation for ray casting that I've ever read. So succinct!",[88,99],{"value":89,"source":62,"evidence":90},"Hard to lock on without a fixed reference; dots change between renders",[91,95],{"id":92,"by":93,"text":94},"19456206","devrod","It would be nice if the dots didn't change between renders of otherwise identical frames.",{"id":96,"by":97,"text":98},"19456994","gwbas1c","FYI: It might be easier if I could pause the stereogram until I can get my eyes focused. With the magic eye images, I usually focus on a point until my eyes lock in. With the…",{"value":100,"source":62,"evidence":101},"Image appears depth-inverted for cross-eyed viewing",[102,106],{"id":103,"by":104,"text":105},"19455810","strenholme","OK, is it just me or does the stereogram render backwards: The more distant stuff (the skyline) looks closer, while the floor and walls looks more distant? I cross my eyes to see…",{"id":107,"by":108,"text":109},"19455990","alok99","This is the best instruction I've read so far on seeing them. I'm fine with cross-eye stereograms, so lining up to 3 dots was easy. What you described as \"stabilizing\" your…",[111,122,127],{"value":112,"source":62,"evidence":113},"Add focus markers such as coloured dots at stereo separation",[114,118],{"id":115,"by":116,"text":117},"19456752","noneeeed","A quick suggestion that would help people to \"lock-on\" to the effect, add two small coloured dots the distance of the stereo separation. It makes it easier to work out if you've…",{"id":119,"by":120,"text":121},"19455397","sonofgod","That's correct -- if you cross your eyes correctly, you should see some 3D depth in the static. http:\u002F\u002Fwww.magiceye.com\u002Ffaq_example.htm has some helpful instructions (you're…",{"value":123,"source":62,"evidence":124},"Pausable or static dots to aid focusing",[125,126],{"id":96,"by":97,"text":98},{"id":92,"by":93,"text":94},{"value":128,"source":62,"evidence":129},"Anaglyph red-cyan mode",[130],{"id":131,"by":132,"text":133},"19455431","classichasclass","Although autostereogram is fun, an additional anaglyph mode (red-cyan) might be nice for people who have trouble with such images.",[135],{"value":136,"source":62,"evidence":137},"Can color or non-random base images be used?",[138,142],{"id":139,"by":140,"text":141},"19455864","pablo1","Don't know much about stereograms, two general questions: a) Is it possilbe to render color images this way? b) Is it possible to have the random dots not change all the time?…",{"id":143,"by":144,"text":145},"19455684","JeremyHerrman","Super cool! Does anyone know alternative non-random dot approaches to autostereogram generation? Seeing the random dot approach in video highlights the lack of temporal coherence…",[147,154,161],{"value":148,"source":62,"evidence":149},"Doom rendered as a magic eye image (omdo)",[150],{"id":151,"by":152,"text":153},"19455443","Y_Y","If you want actual doom as a magic eye thingy, someone else made it already: https:\u002F\u002Fblogum.itch.io\u002Fomdo",{"value":155,"source":62,"evidence":156},"Magic Carpet's magic eye feature",[157],{"id":158,"by":159,"text":160},"19456219","parksy","This is pretty cool. I remember when Magic Carpet came out back in '94 (https:\u002F\u002Fultimatehistoryvideogames.jimdo.com\u002Fmagic-carpet\u002F) It had a magic eye feature, which I haven't…",{"value":162,"source":62,"evidence":163},"moefh\u002Fstereogram",[164],{"id":165,"by":166,"text":167},"19456684","moefh","That's really nice. I did something very similar a few years ago: https:\u002F\u002Fgithub.com\u002Fmoefh\u002Fstereogram\u002F My version shows a simpler scene (a single tumbling cube) and also works…",{"comments":18,"answered":38,"key":169},[170,173,176],{"id":171,"text":172},"19455540","Super cool, and more impressive than what I did! :)",{"id":174,"text":175},"19455528","Thanks! I did try to smooth the flickering. There's a 4th render mode. Press 4 and you'll get a smoothed version of autostereogram. It does look better in autostereogram.…",{"id":177,"text":178},"19455553","Press 1 or 2, and it will render in normal 3D",{"commenters":180,"max_depth":18,"maker_replies":18,"first_comment_mins":181,"lifespan_hours":182},70,32,46,[184,186,188,189,192,195,198,200,203,205,208,211,213,216,219,222,224,226,228,231,234,237,241,242,244,247,249,251,253,255,258,260,263,266,269,272,275,276,279,282,285,288,290,293,297,300,303,306,309,310,312,315,318,321,324,327,330,333,336,338,341,344,347,349,351,353,355,357,361,363,365,367,371,375,377,380,384,389,393,398,402,405,409,414,418,422,425,429],[115,40,38,185,116,40],"project\u002Fneutral\u002Fdesign",[151,44,40,187,152,40],"other\u002Fneutral\u002Fnone",[171,44,40,187,11,44],[190,44,40,191,152,40],"19456450","commenter\u002Fneutral\u002Fnone",[193,44,40,187,194,40],"19458215","nneonneo",[196,44,40,187,197,40],"19459722","sbilstein",[103,33,44,199,104,40],"project\u002Fcritical\u002Fexecution",[201,33,40,191,202,40],"19456120","loco5niner",[204,33,40,191,93,40],"19456171",[206,33,40,191,207,40],"19456579","SamBam",[209,33,40,191,210,40],"19456271","sigspec",[212,33,40,191,97,40],"19456968",[214,33,40,191,215,40],"19457065","jeffwass",[217,33,40,191,218,40],"19457285","ambrop7",[220,33,40,191,221,40],"19458791","WhiteSage",[223,33,40,191,218,40],"19467378",[225,33,40,191,202,40],"19470854",[227,33,40,191,202,40],"19470827",[229,33,40,191,230,40],"19457871","nemetroid",[232,33,40,191,233,40],"19459810","jimmaswell",[235,33,38,185,236,40],"19460125","anyfoo",[238,38,38,239,240,40],"19456705","project\u002Fneutral\u002Fexecution","phkahler",[158,42,40,187,159,40],[243,42,40,187,116,40],"19456730",[245,42,40,187,246,40],"19458326","dividuum",[248,42,40,187,116,40],"19460963",[69,47,47,250,70,40],"project\u002Fpositive\u002Fdesign",[65,18,47,252,66,40],"project\u002Fpositive\u002Fidea",[174,18,40,254,11,44],"maker\u002Fneutral\u002Fexecution",[256,34,38,239,257,40],"19455340","montecarl",[119,34,38,259,120,40],"project\u002Fneutral\u002Fdocs",[261,34,40,191,262,40],"19458044","Aardwolf",[264,34,40,191,265,40],"19458568","NeedMoreTea",[267,34,40,191,268,40],"19460349","benj111",[270,34,40,191,271,40],"19455404","akeck",[273,34,40,191,274,40],"19455446","egypturnash",[177,34,40,259,11,44],[277,34,40,187,278,40],"19455977","cwkoss",[280,34,40,187,281,40],"19458769","foobarian",[143,283,38,284,144,40],8,"project\u002Fneutral\u002Fidea",[286,283,40,287,11,44],"19455784","maker\u002Fneutral\u002Fidea",[92,31,44,289,93,40],"project\u002Fcritical\u002Fdesign",[291,31,47,252,292,40],"19461265","jordanwallwork",[294,295,40,187,296,40],"19455445",10,"umanwizard",[298,295,40,191,299,40],"19455521","chubasco",[301,295,40,187,302,40],"19455575","noir_lord",[304,295,40,191,305,40],"19457460","cdelsolar",[307,295,40,187,308,40],"19455626","deathanatos",[107,295,40,191,108,40],[311,295,40,191,308,40],"19459163",[313,295,40,191,314,40],"19459398","zeta0134",[316,295,40,191,317,40],"19455668","gnode",[319,295,40,191,320,40],"19455702","_bxg1",[322,295,40,187,323,40],"19455768","soneca",[325,295,40,187,326,40],"19455776","tillinghast",[328,295,40,191,329,40],"19455794","davidgrenier",[331,295,40,187,332,40],"19455983","abecedarius",[334,295,40,187,335,40],"19456895","quickthrower2",[337,295,40,187,194,40],"19458170",[339,295,40,187,340,40],"19458723","cgriswald",[342,295,40,191,343,40],"19459896","newnewpdro",[345,295,40,187,346,40],"19463300","rux",[131,348,38,185,132,40],11,[84,32,47,350,85,40],"project\u002Fpositive\u002Fdocs",[165,352,38,284,166,40],13,[139,354,38,287,140,40],14,[356,354,40,287,11,44],"19456029",[358,354,40,359,360,40],"19456982","other\u002Fneutral\u002Fidea","bradyd",[362,354,40,287,11,44],"19457489",[364,354,40,187,194,40],"19458137",[96,366,44,289,97,40],15,[368,369,44,199,370,40],"19457685",16,"tbabb",[372,373,38,284,374,40],"19456741",17,"jstanley",[77,376,47,250,78,40],18,[378,379,38,259,194,40],"19458206",19,[381,382,44,289,383,40],"19459825",20,"olliej",[385,386,38,387,388,40],"19455620",21,"project\u002Fmixed\u002Fidea","cpach",[390,391,47,252,392,40],"19456502",22,"arduinomancer",[394,395,44,396,397,40],"19456208",23,"project\u002Fcritical\u002Fperformance","tunnuz",[399,400,40,187,401,40],"19457170",24,"gmiller123456",[403,404,47,252,202,40],"19456096",25,[406,407,44,199,408,40],"19456078",26,"derekdahmer",[410,411,38,412,413,40],"19460505",27,"project\u002Fmixed\u002Fdesign","dusted",[415,416,40,187,417,40],"19460132",28,"krueger71",[419,420,47,250,421,40],"19458042",29,"ozzyman700",[423,35,40,187,424,40],"19455586","parf02",[426,427,38,259,428,40],"19459405",31,"keyle",[73,181,47,430,74,40],"project\u002Fpositive\u002Fnone",[432,435],{"id":433,"t":434,"points":18,"comments":44},"13320370",1483552115,{"id":4,"t":12,"points":14,"comments":15},[437,441,446,451,455,460],{"id":438,"name":439,"points":440,"category":20},"19455441","Color Supply",591,{"id":442,"name":443,"points":444,"category":445},"19468993","Everything I Know Wiki",434,"productivity",{"id":447,"name":448,"points":449,"category":450},"19482280","Baxx",424,"infrastructure",{"id":452,"name":453,"points":454,"category":20},"19474853","ManyPixels Gallery",295,{"id":456,"name":457,"points":458,"category":459},"19492406","automl-gs",172,"ai",{"id":461,"name":462,"points":463,"category":464},"19477888","Harmopark",153,"languages",false,"v2",{"id":468,"name":5,"line":6,"ai":465,"cat":20,"year":13,"points":14,"comments":15,"rec":28,"s":469,"top":18,"kw":470,"maker":11,"domain":10,"tier":19,"attempts":33,"strip":471,"url":9,"mix":472,"praise":61,"objection":89,"sub":21},19454962,0.05,[24,25,26,27],"3001000003005330003300000000340015235155",[31,32,33,34],1794036575991]