When I take someone else's image and recreate it in glass, something new comes into the world that couldn't exist otherwise. Is that mine? The philosopher Walter Benjamin argued that every medium carries its own "aura" — so translating across media necessarily creates something new, whether you intend it or not. The glass artist taking a painting into enamel and fused glass isn't just copying — the light behavior, translucency, texture, and permanence of glass transform the meaning.
Copyright law agrees with this intuitively: transformation is the cornerstone of fair use. But the creative question goes deeper than the legal one.
The more honest framing is: all creativity is translation. Every artist is working from absorbed influences and converting them into a new form. The question is the degree of distance between source and output.