Recreating the Doctor Who Time Tunnel in GLSL | Hacker News Reader

Recreating the Doctor Who Time Tunnel in GLSL

roy.red

119 pointsroywiggins17 comments

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This was pretty neat and works on my Nexus 6:

https://www.shadertoy.com/view/4dtSWS

Really? Damn. Brings Firefox to its knees on my machine.

Funny, it's smooth as butter in Firefox on my Nexus 5X.

Works great on my machine: Firefox, Arch Linux, on-cpu graphics (i3-5020u)

Works at nearly 60 fps on my 50$ APU using Chrome on Linux.

It's down to hardware & driver support, I think.

The post doesn't work well at all on my Moto G, and I don't know why. The texture generation doesn't work right and the animation fails completely, and I haven't tried to debug it yet, because probably it's only that particular device that has whatever particular bug it is.

WebGL crashes on Chrome on my Nexus 5 (2013).

Funny how that works.

Works like a charm in Safari on iOS and macOS.

I built a very simple Doctor Who inspired WebGL game a while back. If I had known how simple this effect was I'd have included it! The (terrible) code is on GitHub if anybody wants to remix it: https://github.com/mattfran/developer-who

There are several tunnel effects in the XScreensaver collection and rss-glx (timetunnel, atunnel, blocktube, hufo's tunnel). I don't know if any of them use this same approach. Maybe Hufo's tunnel does, it looks similar.

Now try recreating the Steins;Gate introduction in 8-bit pixel graphics.

https://www.youtube.com/watch?v=Z3vRheJlpeE

(side by side: https://www.youtube.com/watch?v=f8YH-1ljDDk )

So whose face is in the effect just after the Dr. Who logo appears in the tunnel? Watch for it in the upper left of the tunnel.

the original was done by pointing a camera at a monitor using the hall of mirrors effect

My understanding is that the first intro sequence[1] was done that way, with analog video feedback, but for the Fourth Doctor's intro they were using slit-scan.

[1] https://www.youtube.com/watch?v=75V4ClJZME4

ED: just realized that's probably what you meant by "original." Oops. Yeah, that's right. In camera effects!

http://www.radiotimes.com/news/2013-11-11/meet-bernard-lodge...

P.S. I wasn't sure if this should be a Show HN, because it's a blog post, though it's got code to play with.

It's for posting your own cool thing, so it could be. Doesn't hurt anything without though.

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