Perspective combo
The same pill that shows the pane's projection - Perspective, Top, Bottom, Left, Right, Front or Back - also holds the Show Grid and Show Floor toggles below. Perspective is the default projection; the six orthographic views sit under an Orthographic section header. None of the projection entries carry a tooltip. Projection is set per pane, and each has its own numpad shortcut - see Navigating.
Switching to an orthographic view for the first time frames a default width of 400 world units.
Show Grid
Checkbox, default on. Tooltip:
"Toggle the world-grid overlay in perspective mode."
Show Floor
Checkbox, default on. Tooltip:
"Toggle the studio floor mesh in perspective mode. Ortho views never render the floor."
Which grid plane shows where
The grid is drawn as three separate planes - one each for XY, XZ and YZ - and only the plane facing you is ever visible:
| Projection | Grid plane shown |
|---|---|
| Perspective, Top, Bottom | XY |
| Front, Back | XZ |
| Left, Right | YZ |
Turning Show Grid off hides all three planes at once, whichever one would otherwise be showing.
Ortho never draws the floor
The studio floor is a flat mesh that never casts a shadow. It is hidden unconditionally in every orthographic view, regardless of the Show Floor setting, and is additionally hidden in perspective whenever Show Floor is off. In other words, the only way to see the floor at all is perspective projection with Show Floor on.