i should note that the angle of your inclined plane plays into the look a lot. As with the stair-step look, the more shallow the angle the farther the waves will be spread from each other.
I would suggest that you're probably going to have a lot more value from playing with the width of the sine wave than the height.
If the sine waves get much taller than this, the eye starts noticing the ridges more than the pattern.
holy 💩! DAYS after updating the "Social Preview" for #FediThready - at least 3 - GitHub FINALLY started serving up the image instead of the default stuff.
BUT I made a "it works just give it time" post with a link, only MINUTES after having it work in a DM, and guess what? IT'S NOT WORKING... but ..it is... sometimes?