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  Performing a Clone stamp on multiple layers at the same time
Posted by: Rathe - 04-17-2021, 11:21 AM - Forum: General questions - Replies (5)

I am trying to work out the best way to use clone stamp to make changes to multiple layers of an image at the same time.

I have a project that has 5 layers each layer is a different part of a PBR texture, top layer is an albedo map, then I have a normal map, height map etc...
I am trying to make changes to each layer at the same time using the clone stamp, the goal here is to perform standard clone stamp operations but have the exact same clone stamp changes applied to all the layers at the same time.

In addition it would be good to be able to preview the image that I am editing as a tiled image.

what is the quickest most flexible way to do this kind of work?

Thanks

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  Undo / adjust earlier changes
Posted by: Vera23 - 04-17-2021, 01:46 AM - Forum: General questions - Replies (3)

Hi all, 

Recently I started editing and I'm trying to learn GIMP. Now I have a question I'm hoping you could help me with. 

When I change something in e.g. colour balance and press ok, the next time I open it, everything is back to zero, while the picture is clearly edited. So I can't reset or adjust stuff, except for using ctrl Z, or using the undo history. If I use the undo history however, all the changes I made past the colour balance are also undone. Is there any way to fix this?

Thank you in advance!

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  Convert xcf to psd (with paths)
Posted by: Iagmon - 04-16-2021, 09:43 PM - Forum: Other graphics software - Replies (5)

Hello there.

First post here, so I'm sorry if I've posted in the wrong section or something.

Anyway, I know I can export a .xcf file as a .psd file and open it in Photoshop. The problem is: when I open it, the layers are all there but the paths are gone.

Opening the recently exported .psd file in GIMP will yield the same results: layers but no paths, so I think the path info is deleted from the file.

Question: Is there a way to convert xcf to .psd without losing paths?

Thanks for the attention.

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  Select and bucket fill with python fu
Posted by: bozjaws - 04-15-2021, 07:31 PM - Forum: Scripting questions - Replies (1)

I'm trying to modify a script with the two basic commands: 
1.Select a free selection with a series of points
2.Fill that selection with the foreground at 75% opacity

To do command 1 I use the line:
pdb.gimp_image_select_polygon(image,CHANNEL_OP_REPLACE,3,[width/2.0,height/2.0,x0,y0,x1,y1])

The array at the end is filled with variables I define elsewhere. I try to test this in the python console on a file I've called test.xcf to see how I can expect the syntax to react. The line looks like 

pdb.gimp_image_select_polygon('test.xcf',CHANNEL_OP_REPLACE,3,[640,480,700,600,500,600])

But I get this error :Traceback (most recent call last):
  File "<input>", line 1, in <module>
TypeError: wrong parameter type

What Can I do? I assume I'm calling the image wrong but I'm not sure what to call it
--------------------------------------------------------
For command 2 I'm using:
pdb.gimp_edit_bucket_fill(drawable,BUCKET_FILL_FG,LAYER_MODE_NORMAL_LEGACY,75,0,FALSE,0,0)

I figure I can run this line in the console or in code and it should have the same effect: as long as there's a selection on the page then it'll just fill with the foreground. But when I test the syntax I'm met with:
NameError: name 'drawable' is not defined

So what do I call the selection then? I figure this should be simple but I'm just not sure what words I should use.

Additionally: The modifications I'm making to my script now call numpy in. Will this be an issue if I already have numpy installed on my machine, or do I have to specifically install it onto gimp?

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  ofn-brush-strokes-on-path
Posted by: Ofnuts - 04-13-2021, 09:02 PM - Forum: Extending the GIMP - Replies (34)

Adding an animation feature (each brush stroke on its own layer). Ending up being a major rewrite. Still have to update the doc before releasing in the wild.

   

For the above:

  • Find a Brush with foot steps (brush hose, alternating each foot)
  • Create a circular path
  • Apply the script to generate 30 strokes on a transparent background
  • Duplicate the image, shift the layers by one (top layer to bottom of stack)
  • Do that two more times, to have 3 images that are 1/2/3 steps behind
  • Use ofn-interleave-layers to combine them with 75%, 50% and 25% opacity to the first one
  • Export as (slow) animation

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Lightbulb Report on creating / updating scripts
Posted by: Krikor - 04-13-2021, 02:46 PM - Forum: Gimp-Forum.net - Replies (1)

Hi Ofnuts,

I noticed the creation / update on April 4th of this year of the ofn-select-layer-box. Is this thanks to the user error in the post https://www.gimp-forum.net/Thread-How-ca...n-photohop? pid = 22967 # pid22967.

I myself am not sure if all of your scripts I have are up to date or not. I would have to check almost one by one as to whether they are up-to-date or not, but for convenience and not having problems I don't do it.

It seems to me that here on the forum there is no topic that keeps us informed of these creations / updates.

There may be other ways, as there is a 'Get Updates' link on the downloads page. But I suppose that requires subscribing via email to some kind of service.

What do you think about posting a topic on this forum with current records about your creations / updates?

Perhaps also useful to provide other script writers with a space where they can inform the updating of their scripts. All in a single post, facilitating consultation and monitoring.

If it weren't for the user's mistake in downloading the wrong script, it would take me a while to become aware of this new script - ofn-select-layer-boxDodgy

Thx.

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Question Can I "chroma key" white tones to black?
Posted by: ANANAN - 04-13-2021, 01:50 PM - Forum: General questions - Replies (1)

Hey!

I have a drawing with lots of white paper showing through, and I want to make the white black.
The magic wand doesn't work, because the whites are undetectable and all over.

Is there a way to scan for the whitest hues of color and remove/replace it?

Thank you so much!

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  CMYK ICC Color Profiles Download for Soft proofing
Posted by: Carl_observing - 04-13-2021, 06:02 AM - Forum: General questions - Replies (1)

Hi. Does anyone know where to download CMYK ICC Color profiles? There are two 2-year-old tutorials by Michael Davies on YouTube that describe how to download the Adobe ICC color profiles. Unfortunately, that link https://supportdownloads.adobe.com/produ...rm=Windows does not work anymore and without the color profiles, one cannot do the soft proofing mentioned in the tutorial. I am hesitant in providing the link to the tutorials as I am not sure if it is allowed here.

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  How can i add a prevalent layer to an animated gif like in photohop?
Posted by: Someone1 - 04-12-2021, 06:33 PM - Forum: General questions - Replies (3)

I am new to gimp so i am still getting familiar with the interface.

In photoshop, an animated gif worked like this, there is a timeline and the layers on the side:

[Image: UD3wvDL.gif]

If i wanted to add a prevalent layer that existed in ALL the animation, all i had to do was go and add a layer (in this case, for demonstration purposes a black rectangle) to the THE END, after the last layer of the animation. When animated that layer will apply to all the animation:

[Image: 0lDPao9.gif]

How can i do this with GIMP?

If i import an animated gif, add a layer at the end and then export to save the layer will only appear at the end of the gif animation, not in all the animation.

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  Having some issues with lowering brush hardness
Posted by: AlphaWolf464 - 04-12-2021, 05:53 PM - Forum: General questions - Replies (2)

So, i was messing with different gradients recently, and im wondering if that changed it, tho it might be something else.The attached picture is what happens when I lower the brush hardness to 30 and click. See how theres that part that i labeled in red where the hardness suddenly drops off? It didnt used to do that, and im wondering how to fix it so that its a more consistent fadeaway.



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