Is 3D scene visible?

The is 3D scene visible? block is a currently unreleased boolean block in the 3D Extension that reports true if the 3D scene is visible, and false otherwise. 
==Workaround==
This block can be worked around by using variables when the show 3D scene and hide 3D scene blocks are used.
==Trivia==
*This block contains a capital letter.
Category:Boolean Blocks
Category:3D Extension Blocks
Category:Extension Blocks
Category:Unreleased Blocks