I started playing around with Gimp Painter brushes with the idea of demoing them in another thread but then it started becoming something else.  This was to be the original demo.

   

I increased the canvas size, changed the background,  adjusted some of the forms, added some reflected light and tidied up a bit.  I still don't know exactly what I am going to do with this.

   

I know I have just joined the forum and it is the forum that the titles relate to, but it seems weird having the title "Junior Gimper" in my avatar slot when I have been using Gimp for many years.  I'm not complaining of course, but maybe a more accurate way to describe a forum newbie?

How can I make a skecth to look like it is drawn by pencil?
The sketches are NOT photos or artwork etc... They are simple architectural sketches made of thin lines drawn with a CAD program. I say it because some methods may not work on thin lines like they do on photos or images full of features... Now I want to make them look like they are drawn by hand with pencil.

Hello,
My question is:
I have a layer with transparent parts. I'd like to be able to erase its pixels and later anti-erase them (using the Eraser Tool with ALT pressed) without messing the alpha channel. I don't mean to use UNDO. I typically want to anti-erase because it would be convenient for my workflow. When I lay my "anti-eraser" on parts that were formerly opaque, it's all fine.
But the problem is - when I hit parts that were transparent from the beginning, they get covered with black colour.
This is of course logical, because "anti-eraser" covers alpha channel (removes transparency). But if it's by any smart way possible, I'd like to prevent it. I want the "anti-eraser" to never cover alpha channel more than it was originally. If a pixel had, say, 100/255 alpha value, then it'll never exceed that value, so that I could non-destructively erase anything and then bring it back without losing alpha data.
Maybe there's some clever way to achieve that with layer blending modes or layers masks

   

Unstable Territories is a sculpture from Nicolás Lamas that consists of two pieces of reflective material. He cut out the contours of the European map and assembled the parts so as to form a standing sculpture. It is part of a Triennial of Contemporary Art in Belgium : Beaufort 2021.

I've been using GIMP for a long time processing Astrophotography. I've gotten better at it and now I'm ending up with a 955mb image. Gimp has problems with this size of a picture.  Very slow and crashes. I can't change it to a JPG because I loose the processing power of a RAW image. I'm using 2.10.24 on Windows 10. Any thoughts?

I downloaded MyPaint and Krit after getting a Wacom One tablet. And is slowly getting used to them. But I am using GIMP for so long now that I feel like I will try it until I get myself good enough with any other software.

https://github.com/SenlinOS/SLOS-GIMPainter

This set of brushes always looked interesting. I want to take your opinion before trying it. What do you think ? Shall I go ahead with it ? Thanks.

I would like my brush to rotate continuously 360 deg (like a propeller if i can say that) to do something like twisted wires
something like here > https://depositphotos.com/126584858/stoc...wires.html
but I' struggling with the settings I can't get the brush to rotate continuously, I don't know what setting I should check, tried many, but felt all the way down
any suggestion?
   

here is the brush png if you want to try

   

Hello,
I've seen a video where someone exported a PDF file with one layer group per page. Say layer group 1 contains: Text1, Text2, and white background. The resulting PDF in this video has all three components on one page.
However, when I export this example layer group, I get a PDF with 3 pages, one for each layer of the layer group.
Is there a way around this?

I'm using Gimp 2.10.24 and Win10 64 bit.

Regards.

I got the beginner instructions from another forum. Thanks to Racer-x

   

this is my work so far. Sadly, I am not able to imitate the depth. I am supposed to use the text as Bump map, which I do not know how. So I played with colour Levels and Curve. I like this, but a feel of depth would be nice. Thanks.

Procedure so far

1. Text in Black
2. Select grow 1px, fill it with White on a layer below it

Select black and remove it from the white layer so that only the white border remains.

3. Noise > Spread for white

4. Then I am supposed to merge black and white and use it as a Bump map.