registry MOSH

Rainbow Map · 027

capabilities open MOSH

Code-native visual signature / Color Chaos

rainbowMap

Rainbow Map

Map luminance to a rainbow.

Category: Color Chaos
Parameters: 2
Registry no.: 027 / 143

Run Rainbow Map 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
Mix	`amount`	0..1 (rendered to 2)	0.7
Cycle	`speed`	0..2	0.4

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": "rainbowMap", "params": { "amount": 0.7, "speed": 0.4 } }

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(){ vec4 c = texture2D(uTex, vUv); float l = dot(c.rgb, vec3(0.299,0.587,0.114)); vec3 rb = hsv2rgb(vec3(fract(l + uTime*uSpeed*0.2), 1.0, 1.0)); gl_FragColor = vec4(mix(c.rgb, rb, uAmount), c.a); }

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Other Color Chaos effects

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