08-23-2021, 08:29 AM
There might be a script for that stacked effect, I think there is one in the g'mic plugin (but with 560 filters, which one 
)
By hand and using standard Gimp 2.10 tools, gets close.
1) You can make a grid Filters -> Render -> Pattern -> Grid unlock the link between sliders and adjust to give the stacked effect. Colour the same as intended background. screenshot: https://i.imgur.com/q6sYKHZ.jpg
2) Thinking about it better if the grid and stack colour are in a layer group. Add a mask to the layer group Layer -> Mask -> Add layer mask (white) and fill it with solid noise Filters -> Render -> Solid Noise Adjust to suit. https://i.imgur.com/oX0nrLE.jpg
3) Still with the layer mask active, paint out excess for effect. https://i.imgur.com/mqpuuVh.jpg
)By hand and using standard Gimp 2.10 tools, gets close.
1) You can make a grid Filters -> Render -> Pattern -> Grid unlock the link between sliders and adjust to give the stacked effect. Colour the same as intended background. screenshot: https://i.imgur.com/q6sYKHZ.jpg
2) Thinking about it better if the grid and stack colour are in a layer group. Add a mask to the layer group Layer -> Mask -> Add layer mask (white) and fill it with solid noise Filters -> Render -> Solid Noise Adjust to suit. https://i.imgur.com/oX0nrLE.jpg
3) Still with the layer mask active, paint out excess for effect. https://i.imgur.com/mqpuuVh.jpg