The figures below have aspects of the Dynamic Luminance Gradient change. But they also seem to twist as one moves back and forth.

 

 

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The figure below also appears to twist a bit, and also changes in an interesting way as one scrolls.

 

 

 

 

In the version below, there is an additional illusory effect :
the lines at the edges of the figure appear wavey.

 

 

A simple version near the threshold of white.