I have decided that I love op art- especially on the computer! I have no idea how they did it before Photoshop, but they did! I have been doing geometric examples and organic examples and than I will post a video on how they are created on Youtube for my Photoshop classes. Today I played around with the organic art I had created yesterday- I added some of the geometric filters I ran yesterday to them and LOVE what I came up with. I have no idea how the wave filter works, but I love it!!!!!!