Plan your next formation before you walk the field.

Cropsy is a browser studio for crop circle designers: start from classic geometry presets, tune paths, scale, and how the crop lies in the grass, then compare aerial-style rings, shader fields, and cymatics-inspired previews side by side.

Built for people who draw circles in crops

Whether you storyboard with compass and rope or plan digitally first, these tools turn your layout into something you can orbit, resize, and stress-test visually — without claiming to predict real-world flattening or sound in a field.

Formation library

Flower of Life, Seed of Life, hexagram, Fibonacci spiral, vesica, Metatron-style graphs — swap presets instantly to explore symmetry and ring structure.

Tweak the lay

Path width, overall pattern scale, blend speed, blade density and proportions, wind, and flatten intensity — so you can see how bold or subtle a design reads from above.

Multiple lenses

Grass shader, metallic rings, and a square-plate nodal shader each emphasise different cues: ground truth illusion, clean geometry, and modal “fingerprint” curiosity.

Parameters you can dial in

Controls are in the right-hand panel on each preview (or below the scene on phones). This is what you are adjusting today in the live demos.

Control What it does Where
Formation preset Switches the entire geometric recipe — rings, polygons, arcs, and guide lines that define where “crop” is laid. Grass · Rings · Field
Path width How wide the trampled or laid corridor reads relative to the blade grid — from hairline to bold avenue. Grass — Pattern sampling
Pattern scale Zooms the formation in the field without changing the camera — useful for crop diameter vs headland. Grass — Pattern sampling
Blend speed How quickly the field morphs when you change preset or width — slower helps compare transitions. Grass — Pattern sampling
Blade density / height / width Resolution of the crop carpet and silhouette of each stem — affects how crisp circles read. Grass — Grass & wind
Wind strength & frequency Motion in standing crop; check readability when blades move. Grass — Grass & wind · Atmosphere
Flatten intensity How strongly laid straw colour and bend apply along paths. Grass — Atmosphere
Chladni modes n, m Changes the nodal pattern on the preview plate — a separate visual metaphor, not a measurement of your formation. Cymatics 3D — Plate modes
Readout (Hz, symmetry label) Creative pairing for mood-boarding only — not calibrated to a real plate or field experiment. Field — Readout panel

Live simulation previews

Each runs in your browser. Toggle focus mode from the header on any preview page to hide the panel and study the full frame.

Grass field designer

Instanced blades with flatten maps along your formation. Best for “how will this read from the air?” and tuning path weight.

Launch grass preview

Aerial rings 3D

Clean torus-and-tube reading of the same presets — ideal for checking hierarchy of rings and nested geometry.

Launch rings preview

Shader field (alt.)

Another grass implementation with pattern picker and readout panel — compare mood and default lighting.

Launch field preview

Cymatics-style plate

Square-plate nodal shader plus wireframe stack — play with mode indices for a different design language.

Launch plate preview

A simple workflow

  1. Pick a base formation that matches the symmetry story you want (six-fold, spiral, dual centre, and so on).
  2. Open the grass designer and adjust path width, scale, and blade settings until the lay matches your intent.
  3. Cross-check in rings 3D for pure geometry, then optionally sketch cymatics modes in the plate demo for presentation boards.

Honest limits

Real Chladni physics on a metal plate is solid science. Matching a crop layout to a plate mode or a frequency in these demos is creative colour for designers and storytellers — not evidence about how a formation was made. Treat every Hz label and mode pairing as inspiration, not instrumentation.

Plate physics — mainstream science Pattern ↔ mode in-app — interpretive