stereogram-raycaster

Creative

stereogram renderer

SHOW HN2019

Legend

stereogram-raycaster

A raycaster that renders to random dot stereogram (like Magic Eye)

github.com

#random dot stereogram#autostereogram#magic eye#raycaster

277points
88comments
#117of 2,195 in 2019
Top 6%of 2019 by points

How HN took it

MixedNo clear lean

9 positive, 12 neutral or asking, 2 mixed, 7 critical, out of 30 comments about the project. Thread score +0.05.

Design: 3 for, 3 againstIdea: 4 for, 0 againstExecution: 0 for, 3 againstDocs: 1 for, 0 againstPerformance: 0 for, 1 against

The thread, comment by comment

Each row is a top-level comment and its replies, in HN's order. Select a cell to open that comment on HN.

positive neutral or mixed critical about another commenter or something else the maker

What HN said

What people liked

  • Fun and impressive autostereogram implementation

    From 4 comments
    • 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…
      throwaway1500 on HN
    • 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;…
      sagebird on HN
    • oh this is so much fun! love it.
      nydel on HN
    • 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…
      creative-coder on HN
  • Readme is a clear explanation of ray casting

    From 1 comment
    • The readme is perhaps the best explanation for ray casting that I've ever read. So succinct!
      jonny_eh on HN

Objections

  • Hard to lock on without a fixed reference; dots change between renders

    From 2 comments
    • It would be nice if the dots didn't change between renders of otherwise identical frames.
      devrod on HN
    • 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…
      gwbas1c on HN
  • Image appears depth-inverted for cross-eyed viewing

    From 2 comments
    • 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…
      strenholme on HN
    • 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…
      alok99 on HN

Requests

  • Add focus markers such as coloured dots at stereo separation

    From 2 comments
    • 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…
      noneeeed on HN
    • That's correct -- if you cross your eyes correctly, you should see some 3D depth in the static. http://www.magiceye.com/faq_example.htm has some helpful instructions (you're…
      sonofgod on HN
  • Pausable or static dots to aid focusing

    From 2 comments
    • 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…
      gwbas1c on HN
    • It would be nice if the dots didn't change between renders of otherwise identical frames.
      devrod on HN
  • Anaglyph red-cyan mode

    From 1 comment
    • Although autostereogram is fun, an additional anaglyph mode (red-cyan) might be nice for people who have trouble with such images.
      classichasclass on HN

Questions

  • Can color or non-random base images be used?

    From 2 comments
    • 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?…
      pablo1 on HN
    • 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…
      JeremyHerrman on HN

Alternatives named

  • Doom rendered as a magic eye image (omdo)

    From 1 comment
    • If you want actual doom as a magic eye thingy, someone else made it already: https://blogum.itch.io/omdo
      Y_Y on HN
  • Magic Carpet's magic eye feature

    From 1 comment
    • This is pretty cool. I remember when Magic Carpet came out back in '94 (https://ultimatehistoryvideogames.jimdo.com/magic-carpet/) It had a magic eye feature, which I haven't…
      parksy on HN
  • moefh/stereogram

    From 1 comment
    • That's really nice. I did something very similar a few years ago: https://github.com/moefh/stereogram/ My version shows a simpler scene (a single tumbling cube) and also works…
      moefh on HN

Category, keywords, summaries and labels on this page were made by AI (Thread Reader v2) and not checked by hand. Each point links to the comments it came from.

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