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What Is Moiré? Patterns in Textiles, Art, and Photos TL;DR: Moiré results from wave interference when similar repetitive patterns overlap with slight misalignments, creating large, dynamic visual effects. It is intentionally used in textiles for luxury finishes and exploited artistically in Op Art to produce mesmerizing illusions. In digital photography, moiré appears as unwanted artifacts caused by conflicting patterns between scene textures and sensor grids. You have almost certainly seen it before, even if you never had a name for it. That strange, wavy shimmer rippling across a phot …