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plus-one-minus-one's Introduction

plus one minus one

+1-1 by != ; an experimental demo released at Mekka Symposium 2002

screenshot

video on youtube

How Am I Building This Thing?

Requirements

  • SDL
  • libjpeg
  • libffi
  • zlib
  • freetype

Instructions

First get Tundra

Then get any missing required library.

Then type tundra or tundra2 at the top level, and run the program in the tundra-output/t2-output directory. It should pick up the data files found in dat/

Notes

This demo was unique in its time for its use of the network to fetch images for instance using google images. This however is not working anymore as what the service returns has significantly changed.

plus-one-minus-one's People

Contributors

uucidl avatar alpha-60 avatar

Stargazers

Stan Serebryakov avatar

Watchers

avatar avatar James Cloos avatar

Forkers

alpha-60 cfr

plus-one-minus-one's Issues

PortAudio timing broken or not precise enough

I had issues on Ubuntu 10.04 on which Pa_GetStreamTime always returns zero. This seems to be related to a pulseaudio/alsa issue:

http://en.usenet.digipedia.org/thread/11147/224/

On FreeBSD, Pa_GetStreamTime can return the same value for example, three times in a row, lowering the framerate. I have noticed that this effectively disables zoom projection effect, since it lasts only a couple of frames.

If PA_TIMING_FIX macro is defined (enabled by default on linux/freebsd builds), the time will be measured by clock_gettime, which should provide a monotonic clock. From what I gathered, gettimeofday is suitable only for a wall-clock; clock_gettime(CLOCK_MONOTONIC) should be immune to daylight saving changes or NTP synchronization.

I don't know if this is the proper solution, but it made the demo work for me on FreeBSD and Ubuntu.

ALPHA-60/plus-one-minus-one@c366377

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