「RAINBOW」は FontVibe AI で作成したカラーガラスの文字エフェクトです。一文字ずつ違う宝石色の、厚く中身の詰まったガラス文字。明るい白いスタジオの床に色の光だまりとコースティクスの扇を落とします。

sculpted as thick solid colored glass letterforms — each letter formed from deep-saturated jewel-tone glass with visible material weight and depth. The glass holds intense color throughout its body: ruby red, sapphire blue, emerald green, amber gold, cyan, or violet — color set by scene context. Top surfaces carry sharp mirror-bright specular highlights; side edges reveal full glass thickness with bright refracted light lines. Internal light scatters creating subsurface color gradients — luminous at the core, deeply saturated at edges. Caustic light patterns (rainbow-edged refraction fans) radiate from letter bases onto surrounding surfaces. Style may range from smooth precision-cut optical glass sculpture (modern) to segmented cathedral stained glass (traditional lead-came divided jewel panes) — determined by font choice. The defining quality: saturated transparent color glowing with transmitted light, like jewels held to sunlight. Square 1:1. RAINBOW as colored glass letters centered against a bright window with natural daylight streaming through. The backlit setting creates a stained-glass window effect — each jewel-tone letter glows with transmitted light: ruby through emerald through violet. Soft white ambient fill from the sides. The scene communicates: rainbow glass text used for a wedding venue decoration, event backdrop, or celebration banner. Natural light, luminous, joyful.