how to show canvas(world space) in Cardboard Camera?,cardboard,world space canvas

I can not see the canvas(some image in it, world space) in the cardboard camera,but with a single camera,i can see what i want.
Any suggestions? I am new in Uintiy ,Thanks !!,

i am not familiar with cardboard cameras but you could re-watch the unity tutorial and see if he mentions a detail, that you might need to progress with your idea

(i thought i’ll give you the link right away so you dont have to search is)