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A starfield effect, inspired by the old Windows screensaver, though the style is more in line with Star Trek. Use up and down to increase and decrease speed, and press X to show stats.

I used nucleartide's Pico-8 snippets, specifically vec3 and pline(), to do the 3D projection. I was encouraged by reinvdwoerd's Perspective Lines and used his cartridge to figure out how to use pline().

To really get immersed, shout "increase speed to [warp number]!" as you hold the up key or "all stop!" as you slow down to zero.

Cart [#starfield-0#] | Code | 2019-02-16 | License: CC4-BY-NC-SA | Embed

P#61959 2019-02-16 22:46

An attempt to replicate the Star Gate effect from "2001: A Space Odyssey." Use Z to turn the 'music' on or off.

Cart [#stargate_2001-0#] | Code | 2019-02-06 | License: CC4-BY-NC-SA | Embed

P#61568 2019-02-06 04:19 ( Edited 2019-02-06 04:21)

Cart [#superbars-0#] | Code | 2019-01-09 | License: CC4-BY-NC-SA | Embed

I was messing around with my earlier fire demo and found this weird result. Use left and right to adjust the width of the bars, up and down to adjust how fast the bars change colors, X to change the colors randomly, and Z to reset. The rendering is interlaced, which leads to interesting results when you hold down X -- epilepsy warning!

I don't see this being particularly useful, but maybe it could work as a music visualizer.

P#60715 2019-01-09 09:35

A real-time fire effect based on the PSX Doom fire described by the wonderful Fabien Sanglard. Uses interlaced rendering to speed things up dramatically. Use the arrow keys to add wind, Z to show/hide stats, and X to turn the fire on and off.

A similar Pico-8 fire was done by Ben Hickling. However, that one looks and works a little differently, and runs at a lower 32x32 resolution (though with higher performance).

I think there's probably ways to make this a fair bit faster, but I just wanted to share this with you all. I hope it keeps you warm, and Happy New Year!

Cart [#real_time_fire_effect-0#] | Code | 2019-01-01 | License: CC4-BY-NC-SA | Embed

P#60475 2019-01-01 05:19 ( Edited 2019-01-01 05:20)

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