Traditional Culture Encyclopedia - Photography major - What is the yellow-green border in 3D MAX? What is it used for?

What is the yellow-green border in 3D MAX? What is it used for?

Question supplement: How to add this box? Answer:

The shortcut key shift+F will do.

These are all safes.

The border of the security box shows which part of the viewport is visible when rendering to video.

The yellow outline indicates the active area.

The green outline indicates the operational safety zone.