03 / LIGHT & MATTER

Opal optics lab EXPERIMENTAL

A suspended opal. A spectral beam. An open field of possibilities.

RGBA CANVASBackground α = 0.00

Incident Spectral paths Reflector

2D · 20 px / mm

918 traced segmentsSeed 51731 · reproducible1500 × 900 · RGBA8

Experiment controlsChanges re-trace immediately

Beam angle°Refractive indexDispersion

400 nm700 nm

Opal sizepxAbsorption/mmScattering/mm

Gem width: 9.46 mm
Higher absorption → less escaping light

Active elementElement enabledElement sizepxElement angle°

Element XElement YBackground opacity%Measurement guidesPreview checkerboard

RGBA studio

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04 / CONTROLLED INPUTS

Generate known alpha values before testing unknown ones.

Known values · deterministic generation512 × 512 · RGBA8

Pattern parameters

PatternResolutionMaximum opacity%Pixel RGB#9179F2

RGB remains present beneath alpha 0