Managing 3D Settings on an Acer Projector 

Hi. I've just bought Acer H6830BD and do not have all these options. When I plan blu-ray 3D via PlayStation 4 it is automatically detected and OK. But when I play 3d video from Chromecast or any other source, 3D option is not available (grey) or I can select it but nothing happens. Still I see side by side etc. picture. Any idea ? I have only three options: OFF / 3D / switch L-R

Thanks :-)