registry MOSH

Sync Roll · 134

capabilities open MOSH

Code-native visual signature / Data Corruption

syncRoll

Sync Roll

Vertical sync lost — the frame rolls continuously off the top.

Category: Data Corruption
Parameters: 2
Registry no.: 134 / 143

Run Sync Roll 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
Roll Speed	`speed`	0..1	0.4
Tear Amount	`amount`	0..1 (rendered to 2)	0.5

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": "syncRoll", "params": { "speed": 0.4, "amount": 0.5 } }

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 uv = vUv; float roll = fract(uTime * uSpeed * 0.5); uv.y = fract(uv.y + roll); float bandDist = min(uv.y, 1.0 - uv.y); float band = smoothstep(0.08, 0.0, bandDist); float j = (noise(vec2(uv.y * 40.0, uTime * 6.0)) - 0.5) * uAmount * 0.15 * band; uv.x = fract(uv.x + j); gl_FragColor = texture2D(uTex, uv); }

← previous selfBlend next → interlaceComb

Other Data Corruption effects

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