Can't animate the drift color independently

[Damon_lai]

- btw, why it would have the swinging effect when animating the layer rotation, although it looks alive?

Two things came to me mind - the centres of the circles and the rotation pivot point don't match (deploying grid while constructing/drawing could prevent it), or splitting the curve caused uneven curvature on points.

On a side note...
Have you tried to mask these "rings" (1&2) with the brush, as one in the drift samples? Looks like the brush has opaque to transparent portions, which, as a mask, could make the colour points rather harsh gradients somewhat softer. It could be upon the brush you choose but overlay, as an addition, could make things even further editable.

1 about the circle swinging
You're right, it's the circle center not match the pivot point(layer center), and especially when there're more than 1 shape inside the layer, making their center not matching. It's quite tedious to adjust the shape's center to exactly match the layer center manually.

Then I try to rotate the shape around its own center with the Transform Point tool, but it introduces an unexpected scale effect besides the rotation, although I only rotate the shape and not scale it carefully.



Any way to fix this and make the shape only rotate around its own center steadily?


2 masking gradient on brush
Above trial-4 is masking the brush on top of the gradient ring.

Here I do another trial, choose the brush with obvious shape & texture, and put it to the bottom of the masking with overlay blend mode.



Quite like these looks.