04-05-2020, 01:17 PM
I had a look around, nothing in Gimp that I could find. There an ImageMagick 'box' maker although from memory it is a bit complicated.
Someone might come up with something. One question. Are you starting with a 'flat' image.
Nothing like automated, a very hands on method
In the screen shots:
https://i.imgur.com/kY1YWyQ.jpg
Starting with a 'flat' image
Unified Transform will rotate / scale / skew all in one operation.
https://i.imgur.com/oGo7eNq.jpg
Used the skewed layer to make a stack of 'edges' in a layer group then the align tool to 'extrude' using a small offset.
(while writing that, I remember there are extrusion scripts around, I will see what works with Gimp 2.10)
The example you gave has the edges fading to transparency so apply a layer mask and gradient to the layer group.
![[Image: EU17h9a.jpg]](https://i.imgur.com/EU17h9a.jpg)
Not going to use the drop shadow tool, duplicate an edge layer, make it black, gaussian blur, move, adjust opacity. Easy.
Someone might come up with something. One question. Are you starting with a 'flat' image.
Nothing like automated, a very hands on method
In the screen shots:https://i.imgur.com/kY1YWyQ.jpg
Starting with a 'flat' image
Unified Transform will rotate / scale / skew all in one operation.
https://i.imgur.com/oGo7eNq.jpg
Used the skewed layer to make a stack of 'edges' in a layer group then the align tool to 'extrude' using a small offset.
(while writing that, I remember there are extrusion scripts around, I will see what works with Gimp 2.10)
The example you gave has the edges fading to transparency so apply a layer mask and gradient to the layer group.
Not going to use the drop shadow tool, duplicate an edge layer, make it black, gaussian blur, move, adjust opacity. Easy.