Material - How to change size of perforated holes?

[Marcus.Isacsson]

Hi fellas!

We have a problem with perforated holes as a glass foil, where the parameter for "center spacing" doesn't seem to work? (see pictures below)
How would you guys accomplish those holes instead? 

Version: Revit 2018.2

[Kimtaurus]

There seems to be a realtion between "Diameter" and "Center Spacing", but when you change Center Spacing not much changes.

I suggest you try to make the cut out with a png file (Type : Custom).

[Marcus.Isacsson]

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@Kimtaurus wrote:

There seems to be a realtion between "Diameter" and "Center Spacing", but when you change Center Spacing not much changes.

I suggest you try to make the cut out with a png file (Type : Custom).

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Exactly, seems that the parameter is broken?
How do you create those cutouts in a png-file?
Just a transparant background?

[Kimtaurus]

A black and white image should do, but transparant might work as well.

https://lpcetraprojects.wordpress.com/2013/10/12/understanding-autodesk-revit-materials-cadalyst/

[ToanDN]

Seems like most of the procedural functions in Revit material settings are half-baked.