You can take a material with a pattern and throw it over your geometry that needs perforation.
The perforation scale on the panels can be edited with the tiling parameters.
Archived: panel 500x500x50 mm
panel 1000x500x50mm
And two large panels made up of small ones: 4000x4000x50 mm in size
Seamless texture pattern 4096x4096, mat, fbx
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