What do the White and Grey bulb states indicate in the modifier stack?

What do the White and Grey bulb states indicate in the modifier stack?

• A. White means the modifier is applied to the stack below; Grey means off.
• B. White means on and Grey means off.
• C. White means the modifier is hidden; Grey means visible.
• D. White means the modifier is locked; Grey means unlocked.

Answer: (C)

In the modifier stack, the little bulb next to each modifier shows whether that modifier’s result is displayed in the viewport. A white bulb means the modifier is hidden—its effect isn’t shown, though the modifier remains in the stack. A grey bulb means the modifier is visible—its effect is being applied and you can see its influence on the object. This toggle lets you temporarily hide or reveal modifiers to simplify editing or to compare results without removing anything from the stack.

In the modifier stack, the little bulb next to each modifier shows whether that modifier’s result is displayed in the viewport. A white bulb means the modifier is hidden—its effect isn’t shown, though the modifier remains in the stack. A grey bulb means the modifier is visible—its effect is being applied and you can see its influence on the object. This toggle lets you temporarily hide or reveal modifiers to simplify editing or to compare results without removing anything from the stack.