I recently fell in love with PICO-8 and made a few old school demoscene type effects as a cleanser from my main project. Nothing better than banging out a simple 400 loc program that I won't need to support for years :D Anywho, here's some gifs of the madness i've been making in PICO-8:

Dot Tunnel:

Interference Circles: The Eye

Quad Interference Circles: The 88

3D Model / Triangle Rasterization with/without wireframe:

I'm going to try to do some write-ups on techniques / code once I get a bit of free time to clean up the code and document it. Ping me if you have any questions / comments. <3 PICO-8!

@smashriot

Very nice!

Rotating torus model: Still have a bunch of depth sorting to work out but its close:

Tightened up the rasterization/wireframe, getting close on having this wrapped up.

Here's the 3x3x3 model from MagicaVoxel rendered in PICO-8:

Also wrote a quick script to convert the MagicaVoxel obj export into a format I can import into my PICO-8 framework:

Need to cleanup/comment code and then I can make a post detailing how it all works.

Impresive!

Working on blending the 3d effects in with other effects. Here's a cube tumbling down a dot tunnel. Still needs a few optimizations too smooth out the framerate:

I like the tunnel warp. Reminds me of the logo for the new Doctor Who.

Change your cube to a blue Tardis and there ya go ! :)

a legit 3d warp tunnel is on my list of demo effects to try to implement!

I realize this is a super old thread but i was wondering if you'd be willing to share you're code? I've been dying to learn how to do normal basic demoscene effects like these but i'm not good enough of a coder to do them on my own.

Usually people will direct you to a tweetjam thread or something similar, but that code is way to compressed to make the slightest sense for a beginner like myself.