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Show HN: A CC0 museum of retro 3D tricks you can paste into a page

Original article
3d-retro.com|51 points|10 comments|by SouthWestAtlas|Sep 23, 2026

A Public Domain Gallery of Vintage 3D Effects

Welcome to a CC0 curated museum of legacy graphical techniques. The premise is simple: spend hours coding just copy a demo and drop it directly into your web page.

"Copy a demo, drop it on a page."

🛠️ Implementation Workflow

🏛️ The Exhibit Catalog

Below is a comprehensive list of the available experiments, ranging from early analog signals to futuristic visualizations.

Era/YearTechnique NameDescription & Nuance
1968TrumbullA "Stargate" effect utilizing a moving slit-scan.
1970sVector CRTXY oscilloscope style; features Lissajous figures and phosphor persistence.
1973Rutt/EtraA scan where luminance values displace the video raster.
1980WhittedA classic raytracer featuring three spheres, shadows, a checkerboard, and 3-bounce reflections.
1984AtariI, Robot style polygons; filled pyramids/cubes using the painter's algorithm.
1986MartinThe "Hopalong" attractor; a single-line iterator that fills a CRT screen.
1990SNESMode 7 floor; an affine checkerboard ground reminiscent of Space Harrier.
1990AmigaGlenz vectors; additive, translucent filled polygons.
1991DemosceneA twisting tunnel composed of dots and squares.
1992DemosceneA fullscreen fragment shader running a plasma color-field oscillator.
1993HyperspaceA perspective starfield that warps into a hyperspace tunnel.
1993GL WorkstationA flat-shaded torus featuring a wire overlay and a ground grid.
1993DemoscenePalette fire; heat rising via a 256-color Look-Up Table (LUT).
1994IRIXA wireframe globe with a latitude/longitude cage and phosphor strokes.
1995MetaballsRaymarched chrome blobs set in a studio environment.
1995PlayStationPS1-style affine warp; checkerboard floor/cube using screen-space UVs.
1996Vector FieldA curling flow field guiding one thousand particles.
2006donut.cA rotating 3D torus rendered using a luminance character ramp (ASCII).
2026Sci-VizA concentrating 3D "Spaghetti vortex."
1986 / 2026MartinSpiral stretch; a relative of the Hopalong attractor where zzz grows as the radius shrinks.

🔍 Technical Deep Dive

Some of these effects rely on specific mathematical foundations. For example, the Vector CRT's Lissajous figures can be described by: x=Asin⁡(at+δ),y=Bsin⁡(bt)x = A\sin(at + \delta), \quad y = B\sin(bt)x=Asin(at+δ),y=Bsin(bt)

To implement these, you might interact with the data via the provided API:

{
  "experiment": "metaballs",
  "year": 1995,
  "technique": "raymarching",
  "license": "CC0"
}

📋 Museum Checklist

  • Fragment Shaders
  • Raytracing
  • Affine Transformations
  • ASCII Rendering
  • Vector Oscillations

Retro Graphics Placeholder


For AI Agents: The machine-readable catalog is available at the following endpoints:

  • /llms.txt
  • /api/v1/experiments