For some reason I am able to use every expressions in Mathmap (Gimp 2.8) except kaleidoscope. All I get is a solid black picture. I used this expression before (on other computers). Tried different pictures and the result is the same. Any ideas?

Try setting the center X and Y to 0.5

Seems to be fine with the 64 bit plugin.

some tips
1. in user value the setting RAD shoud be other then ZERO (better 0.5><1.5)
2.you can use also Gmic>Deformations>Kaleindoscope ( 3 types)

Same result.

For 1, no effect - still black (see screen capture). For 2, I don't have a Gmic. I've been using Gimp -> Filter -> Generic -> Mathmap -> Animation (or Map) -> Kaleindoscope. I tried all 3, same result.

updating
1. that picture (Bellagio) is not working also in my PC
2. but is working in Gmic
3. other pictures are working in Mathmap kaleind.

With the image as you posted I get a black image as well.

Adjusting the aspect ratio to nearer square (and rotating) I get a result



but probably not what you are looking for

I was able to get the attached screenshot before. For the current purpose, I need to redo the picture but all I get is a "black"

What's Gmic?

Ok, the Kaleidoscope from Gmic does work - but with a different result. At least it works.

It seems to work OK with a small amount of cropping, then setting the Edge Behavior Y to Wrap.

By "It", I presume that's MathMap, not Gmic, correct?

I don't have MathMap at work. Will try it when I get home.

Thanks,

You would presume correctly.

Try setting the edge behavior y to wrap.



Then try these values.



That worked for me.

Cool image to play with in this filter by the way.
Sorry Tux didn't see your post before mine.