Motion
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ReferenceMaterial nodesColour

RGB to OKLab

Lightness and two colour axes that match how we see differences.

Colourrgb2oklab

Inputs

PinTypeStarts atNotes
RGBcolourvec3"#7ce695"–

Outputs

PinType
Laboutvec3

The code it becomes

What Studio writes for the graph below: a few lines of the material's shader, worked out for every pixel.

void mainImage(out vec4 fragColor, in vec2 fragCoord){    vec3 n2_out = plus_rgb2lab(vec3(0.48627, 0.90196, 0.58431));    fragColor = vec4(n2_out, 1.0);}

In a graph

Texture coordinates into the node, and the node into the material, as Studio draws them.