All those spirals talks have inspired me to make this double spiral animation

I am in your power.

Very nice effect, K1te.

A neat trick taught to me by Jolie. If you check Adaptive Supersampling in the gradient dialog, you won't get those rough edges on the curves in your spiral gradients.

Thanks, O! I'm glad you liked it. It was made impromptu.

It's GIMP select tools that are messing up those edges. After I apply gradients with Adaptive Supersampling the edges look neat, but then I have to make a selection from color to cut out parts of color gradient images. I even tried to do it using path, but it seems no matter what I do, the results are always the same.


Stroking, cutting, filling up etc. along a selection in GIMP yeild terrible results.
For that reason I never stroke selections, rather make path from selection and stroke the path (looks way better)

Here's what I'm talking about


Although GIMP is a raster-based image editor, I believe it could do a better job with that.
IIRC, the issue's been addressed to the GIMP developers. There's no solution for that yet.

Here's the improved version. Looks a little better, IMO. Guassian Blurred initial frames to smooth those rough edges. It works in this case, because the image itself is a color gradient, and blurring it does not affect the final result.

Really nice, but every so often it seems to jump, I'm assuming thats the point the frames cycle back to the beginning.

I tried a single spiral animation. I like yours with the double one better. Will have to ponder how to do that.

The screenshot I've attached is pretty much self-explanatory. I make a b/w double spiral with hard-edge b/w gradient set to spiral CW, then two layers with full saturation spectrum CCW drawn in different direction for each of two layers (90 degrees). Cut out from colored layers parts of b/w spiral layer. After the initial frames are ready I run color cycle script. It creates 2 stacks of layers which I then combine.



I made a version which has a ping-pong effect, not jumpy but it contains way too many frames and came out heavy for uploading here.