The perforated aluminium texture is a micro-pattern, 4x4 pxs, like a scanline.
For the highlights i used blurred brushstrokelines, instead of a gradient.
Much easier !
The moire-esque lighting effect is satin.
A version with some variations:
And here is the walkthrough.
You can download all the micro patterns i made when working on this texteffect:
The texture of the version was done by layering the 4x4 with the 8x8 and i think offsetting the bigger pattern by 1px, but im not sure.
You could also zoom in the piece and recreate a new pattern from scratch.
Have fun ! :)
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