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Feather effect changed for 2.8?

May 12, 2012, 16:07 (This post was last modified: May 12, 2012 16:11 by ofnuts.)
Post: #16
RE: Feather effect changed for 2.8?
(May 12, 2012 12:55)DavidBrennan Wrote:  Expand the canvas size so that the borders go to an alpha=0 area
This is still different...
- image on its own layer
- set the selection to the layer rectangle (Layer/Transparency/Alpha to selection)
- feather the selection
- invert the selection
- clear
And you get a rectangle image with vanishing borders, too, because the "clear" only applies to the intersection of the layer and the selection.

(May 12, 2012 12:55)DavidBrennan Wrote:  As I've said before, I understand that other people's 2.6 was not the same.
I think you should abandon this idea. There is no setting for selection feathering, except the width in pixels. The feathering works the same everywhere for everybody. Otherwise I know plenty of scripts that wouldn't work. Get a "portable" version of 2.6 that you can use without uninstalling your 2.8 and do your own tests...

(May 12, 2012 12:55)DavidBrennan Wrote:  Secondly, more significant than the blurred borders around a rectangular image, how would you achieve the effect against a human figure (or any other odd shape). For instance, the edges of this Batman (I just did this as an example) are obviously very jagged, and so I'd apply a Gaussian Blur of 8 or 9 to the edges:
In the past, this was obviously very simple for me with my old Selection > Feather. Now, I don't know how to do it at all.
Did you try?

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May 12, 2012, 16:47
Post: #17
RE: Feather effect changed for 2.8?
(May 12, 2012 16:07)ofnuts Wrote:  
(May 12, 2012 12:55)DavidBrennan Wrote:  Expand the canvas size so that the borders go to an alpha=0 area
This is still different...
- image on its own layer
- set the selection to the layer rectangle (Layer/Transparency/Alpha to selection)
- feather the selection
- invert the selection
- clear
And you get a rectangle image with vanishing borders, too, because the "clear" only applies to the intersection of the layer and the selection.

Yes, thanks. This doesn't work. The border's edges are still clearly defined and so this technique is useless for good composting.

(May 12, 2012 16:07)ofnuts Wrote:  I think you should abandon this idea. There is no setting for selection feathering, except the width in pixels. The feathering works the same everywhere for everybody. Otherwise I know plenty of scripts that wouldn't work. Get a "portable" version of 2.6

Are you saying that my GIMP 2.6 didn't do this and that I'm lying? Maybe you prance around lying about things to total strangers and so you project that onto others. I never lie.

Please don't call me a liar. Thank you for your efforts, but nothing you've said has been of any use and this is going nowhere.
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May 12, 2012, 19:03
Post: #18
RE: Feather effect changed for 2.8?
I'm not calling anyone a liar and I'm just trying to help. As they say, if it ain't broke, don't fix it. If 2.8 doesn't suit you, reinstall 2.6, but if doesn't work as you remembered, I wish you good luck finding the hidden setting because there is none.

The thought that I could be a very evolved and sneaky troll is however hilarious.

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May 12, 2012, 19:26
Post: #19
RE: Feather effect changed for 2.8?
(May 12, 2012 19:03)ofnuts Wrote:  I'm not calling anyone a liar and I'm just trying to help. As they say, if it ain't broke, don't fix it. If 2.8 doesn't suit you, reinstall 2.6, but if doesn't work as you remembered, I wish you good luck finding the hidden setting because there is none.

The thought that I could be a very evolved and sneaky troll is however hilarious.
I'm aware of how much you've helped people out - including me - and so I would never call you a troll because that's just wrong.

But it was the repetitive "solutions" that don't remotely solve the issue - simply trying to get a smooth dissolve around Selection edges, as I was able to do before - and, as I interpreted it, calling me a liar (apparently an incorrect interpretation) - that caused me to speak harshly.

I'm very grateful for all of your assistance to me and others, but this exchange has yielded nothing except for something I stipulated in the second darn post: that there was something very unique about my GIMP 2.6 set-up. I'm well past that. Now, I'm just trying to be able to generate the same effect as I was able to do so easily before.
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May 14, 2012, 19:25
Post: #20
RE: Feather effect changed for 2.8?
If anybody could please create an add-on/script which applies Feathering but does not deform the Selection, I would be hugely, hugely, hugely grateful.

I have no money, but if there's any other service I could exchange for this, I would do so. This is very vital to my everyday GIMP usage.

Please PM me for any questions or details. I'll be happy to talk with anybody.
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May 15, 2012, 08:30
Post: #21
RE: Feather effect changed for 2.8?
I have a couple of thoughts.

First about feathering: See Meet The Gimp episode 17 at about 11:52 minutes: http://blog.meetthegimp.org/episode-17-s...ns-part-1/

As Rolf states, feathering has always blended a selection from half the radius inside the selection to half the radius outside, so rounded corners are inevitable. So knowing that and as you want to maintain what's inside your selection, I would suggest growing the selection by half the feather radius before feathering the selection. You will of course still have rounded corners.

Also, if you want to keep your initial selection, then save it as a path before feathering, and only work on a duplicate layer, so you can then turn the path back into a selection and make a sharp-edged copy from the original if layer needed.

Kevin
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May 15, 2012, 08:55
Post: #22
RE: Feather effect changed for 2.8?
(May 15, 2012 08:30)paynekj Wrote:  Also, if you want to keep your initial selection, then save it as a path before feathering, and only work on a duplicate layer, so you can then turn the path back into a selection and make a sharp-edged copy from the original if layer needed.
Why not a plain Save selection to channel, and later restore from channel?

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May 15, 2012, 09:22
Post: #23
RE: Feather effect changed for 2.8?
(May 15, 2012 08:55)ofnuts Wrote:  
(May 15, 2012 08:30)paynekj Wrote:  Also, if you want to keep your initial selection, then save it as a path before feathering, and only work on a duplicate layer, so you can then turn the path back into a selection and make a sharp-edged copy from the original if layer needed.
Why not a plain Save selection to channel, and later restore from channel?

Mostly because I didn't know about that Huh and on principle I like the idea of being able to modify the path later.
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May 15, 2012, 10:28
Post: #24
RE: Feather effect changed for 2.8?
(May 15, 2012 09:22)paynekj Wrote:  
(May 15, 2012 08:55)ofnuts Wrote:  
(May 15, 2012 08:30)paynekj Wrote:  Also, if you want to keep your initial selection, then save it as a path before feathering, and only work on a duplicate layer, so you can then turn the path back into a selection and make a sharp-edged copy from the original if layer needed.
Why not a plain Save selection to channel, and later restore from channel?

Mostly because I didn't know about that Huh and on principle I like the idea of being able to modify the path later.
Saving a selection to path only works for "sharp" selections.

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May 15, 2012, 13:48
Post: #25
RE: Feather effect changed for 2.8?
Thank you for the suggestion, but this doesn't do any good because it doesn't apply any gradual opacity/blur to the Selection.

But, yes, I know how to save a Selection itself.
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May 15, 2012, 14:35
Post: #26
RE: Feather effect changed for 2.8?
(May 15, 2012 13:48)DavidBrennan Wrote:  Thank you for the suggestion, but this doesn't do any good because it doesn't apply any gradual opacity/blur to the Selection.

So now I'm completely confused about what you're asking for.

Just to clarify things have a look at this diagram:
   

I understand that you want the fade across the horizontal and vertical edges, but at the corner I don't understand what you expect to happen.

To me, I would expect the effect of the blend from both sides to combine and therefore fade from a greater distance inside the selection - leading to the appearance that the selection has been rounded.

Kevin
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May 15, 2012, 14:54 (This post was last modified: May 15, 2012 15:37 by DavidBrennan.)
Post: #27
RE: Feather effect changed for 2.8?
(May 15, 2012 14:35)paynekj Wrote:  So now I'm completely confused about what you're asking for.

Just to clarify things have a look at this diagram:


I understand that you want the fade across the horizontal and vertical edges, but at the corner I don't understand what you expect to happen.

To me, I would expect the effect of the blend from both sides to combine and therefore fade from a greater distance inside the selection - leading to the appearance that the selection has been rounded.

Kevin
In that case, the end result would basically just look as though you had the square and then applied a Gaussian Blur to the whole thing. (Of course, this is assuming it were a simple monochromatic box. If the box were a photo, then the designated distance in from the Selected Edges would obviously not get blurred.)

So, yeah, the corners of the final selection do appear a little bit rounded (all of the crooks and nannies of a given shape do), but (1) at a consistently symmetrical distance from the Selection, and (2) obviously not to the gross extent that occurs in the current Feathering.

From the user's standpoint, such an option would probably be best employed with a checkbox in the Feathering dialogue: "Deform Selection". If the user checks that box then the Feathering does what it's now doing in 2.8. If not, then the Feathering just applies the Gaussian Blur and/or Opacity (however it works....I guess in a perfect world, the user could choose either one) with no distortion of the Selection.
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May 15, 2012, 15:15
Post: #28
RE: Feather effect changed for 2.8?
One final question before I give up...

You haven't got the "Feather edges" tool option selected when doing the selection have you?
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May 15, 2012, 15:24
Post: #29
RE: Feather effect changed for 2.8?
(May 15, 2012 15:15)paynekj Wrote:  One final question before I give up...

You haven't got the "Feather edges" tool option selected when doing the selection have you?
I'm not sure what you mean by "give up" since it doesn't appear you did anything.

I've tried it with the tool selected and unselected.
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May 19, 2012, 05:57 (This post was last modified: May 19, 2012 05:58 by DavidBrennan.)
Post: #30
RE: Feather effect changed for 2.8?
I just want to again firmly request any assistance in this regard. Essentially, just be able to apply Feathering without any deformation to the shape of the Selection. I believe that that is all that would be required.

Does anybody have any suggestions about where I could go to either (a) get alternate techniques or (b) speak with people capable of generating any sort of add-on or script for this?

Once other users would see how perfectly this blends edges of images, creating a perfect border, I believe it would become a hugely popular feature with many, many, many users. (As noted before, I believe that giving the user the option to either deform or not deform at the time of the Feathering through a simple checkbox would be totally perfect.)
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