-emulatestereo command not working

SBS is a standard format for various display technologies, output from doesn’t know or care what’s at the end of an HDMI cable or such, a 3D monitor or a projector, this works on any display system supporting SBS.

Of the two screenshots, capture2.jpg is more like it, but you went off map in several instances with your own values, which won’t work, use my values.