Blender 2.8, Viewport objects visibility I was making a tunnel model for animation, but somewhere I may have done something wrong and now the objects in the viewport are displaying with the background and foreground flipped. The objects which should be hidden from view are visible and the foreground objects are hidden

From "background"  I do not mean background images but objects
Select the object in question, go Edit mode, flip normals and leave Edit mode.
Check "Clip start" and "Clip end" of the View port camera (which not visible 
as an object...it is simply "there" :) ) which settings can be found on the right
side pane und View->View top most second and third entry.