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Full Version: What are the main techniques used in op art movement works?
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As a digital artist, I'm really interested in optical illusions and visual effects, which makes the op art movement particularly fascinating to me. Artists like Bridget Riley and Victor Vasarely created works that seem to move and vibrate through careful manipulation of patterns, colors, and shapes.

What are the specific techniques that op art movement artists use to create these optical effects? I know about moiré patterns, afterimages, and simultaneous contrast, but I'd love to learn more about the technical side.

How have digital tools changed or expanded the possibilities for creating op art? Are contemporary artists using software to create effects that would have been difficult or impossible with traditional media?