In v2.6 if you brought up the displacement filter (Filters > Map > Displace) and used default settings and set the filter to a blurred black & white layer, the displacement worked. This image is from a tutorial I did.


Now if I try to do it the same way, I get no displacement with the default settings. I have to change the X or Y displacement amount.

.....

Just a quick question but has it got anything to do with the fact your using a circle, have you tried it on another shape.

One thing to check is whether clicking on the OK button without changing any of the settings will result in your image's layer being modified. It may just be that the plugins' preview window is not being initially drawn properly but gets updated whenever you change any of the options (this would still be a bug, but such testing can be helpful to the developers when reporting it).

First I tried it with a dingbat, then text, and resorted to a circle and they all came out flat in the preview window and the results unless I changed one of the settings as shown in the examples.

Has anyone else tried it?

Seems to show with defaults for me 2.8.2 win7

Thanks for your input, Alc. I should have mentioned that I am using gimpv2.8.2 on Fedora 17, Linux.

Here is using the letter g and clicking the OK button using the default settings. There is an inset of the layers. This is after my computer was off for the night and booted up this morning.

your stripes didn't work for me either until i rotated them 90...strange

Hm. That's interesting that rotating it would work. I was using this tutorial with orange and black stripes using a jack o'lantern dingbat and when it didn't work, I just did the tutorial with the regular black and white gradient.

If anyone wants the "g" in the tutorial, it is the Century Schoolbook Bold "g" that comes with gimp.

Using alc's method, I flipped the stripes layer and displacement worked with default settings. This gets a bit weirder now. I will need to do that with my orange and black gradient also as displacement didn't work with it either.

Interestingly enough, I used the yellow and black warning stripes in the patterns and displacement worked fine.

OK, I think it has been narrowed down to gradients being the culprit. Making a narrow, 45-degree gradient, bilinear, triangular wave with adaptive supersampling, seems to make it not work. If the gradient is flipped either vertically or horizontally, the displace filter works.

I just went through the tutorial and I am running into the same problem. I have to flip the stripes in order to get the displace to work.

I tried another one with Jennifer Hudson and instead of using the gradient, I used a newsprint pattern. The displace worked perfectly with that.

It is because you are trying to displace a 45deg stripe by equal x and Y amounts!? Every point just gets slid at a 45deg angle (same x and y) so there is no apparent change.

That's why rotating the stripes makes a difference.

-RobA>

Thanks RobA

That makes sense. I see the one I did in gimp v2.6 had the angle at 45 degrees and that is probably why it worked. Image below.


This one in v2.8 is at -45 degrees and it didn't work.


I just tried it in v2.8.2 with the stripes at 45 and at -45 and the stripes at -45 didn't work.

Thanks RobA! At least I can lay that one to rest. It was bugging me.