registry MOSH

Polar Fold · 060

capabilities open MOSH

Code-native visual signature / Geometry

polarFold

Polar Fold

Convert to polar coords then fold — alien topology.

Category: Geometry
Parameters: 2
Registry no.: 060 / 143

Run Polar Fold in the browser

What it reads

Frame-local Reads only the current frame, which makes it the cheapest kind to stack and safe to render into a Conjure window at any size.

Parameters

param	key	range	default
Amount	`amount`	0..1 (rendered to 2)	0.7
Twist	`twist`	0..9	1.8

The renderer widens amount past its declared maximum by 2× before it reaches the shader, because most shader bodies were tuned against a muted top end. The rendered figure is the bound that actually arrives.

Defaults as a layer

{ "effectId": "polarFold", "params": { "amount": 0.7, "twist": 1.8 } }

GLSL fragment shader

The effect's own code. The uniforms and helpers above it — uTex, uFeedback, the depth proxy, the frame ring, depthAt(), timeAt() — are the same header every Ether-MOSH shader opens with, and are documented once on the registry rather than reprinted on all 143 pages.

void main(){ vec2 p = vUv - 0.5; float r = length(p)*2.0; float a = atan(p.y, p.x) + uTwist*r; vec2 polar = vec2(a/6.2831853 + 0.5, r); polar = abs(fract(polar)*2.0 - 1.0); vec2 uv = mix(vUv, polar, uAmount); gl_FragColor = texture2D(uTex, uv); }

← previous fractalZoom next → displacement

Other Geometry effects

143 effects / 5 categories / one GPU Back to the full registry