Kaleidoscope 2.1 is a plugin which proceeds to multiple symmetries to obtain beautiful patterns.
Version 2.1 corrects some aliasing effects due to "undersampling". In other words, you should get a higher quality for your picture when you "Zoom Out" a lot.
Example 1: Compare "Mirror" effect with "Copy" effect.
Example 2: effect "blend " is applied here to parallel lines. Amazing, isn't it?
This plugin interests you? Click the link below.