Transparency - Dither

kapgowild

Hey guys, I'm making a material for a personal project, and I need to put some glass on it, so I've watched a few videos, and bought a .sbs file with the marmoset scene to see how the opacity map was made, and also how it was set in marmoset. One thing that I don't get it, is that the glass material looks really odd, with some black dots on it, kinda pixelated, and it gets even more when the light is rotating around the object. Was it supposed to look like this? This is really different than how it looks on the artist portfolio final render.
That's how it looks on the marmoset scene: