Draw a quad in screenspace

This is part of dissecting a larger problem, and it’s not making much sense why I can’t do it. If I add a quad, and make a shader where the vertex shader makes the position the vertex without the MVP multiplication, shouldn’t it render right in the view? Right now I don’t see it, even if I make a different quad in code that’s the screen resolution.

Apologies for no code, I’m on my ipad.

I’m not sure exactly what it defaults to without the modelview projection thing. Maybe the object comes out too tiny? Or it think’s it’s behind the camera clip plane?