It's the same as the most recent screenshot except that what's plugged into the y_index input of the Noise node has changed, and now unused node that was plugged in has been deleted. I also changed the number of tiles and the mortar thickness.

Set Value_1 of Math_Functions on the right to the number of tiles you want, but don't change anything else in the three columns of nodes at the right. You can change the colour/value of any parameters in the Noise, ColorRamp and Tile nodes that don't have an anything plugged into them. The x_index, y_index, and z_index values in the Noise node and the Mortar_Thickness in the Tile node are fair game too.

FireFly and SuperFly renders again. You can see those artefacts I mentioned in the FireFly render again - definitely similar to what I spotted back in Aug 2019

 

I can't attach mt5 or txt files to this post, but I plan to upload the shader here in Renderosity's FreeStuff

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The 3Dcheapskate* occasionally posts sensible stuff. Usually by accident.
And it usually uses Poser 11, with units set to inches. Except when it's using Poser 6 or PP2014, or when its units are set to PNU.

*also available in ShareCG, DAZ, and HiveWire3D flavours (the DeviantArt and CGBytes flavour have been discontinued).