'Actor hidden in game' makes just visually invisible?

In detail pannel, there are ‘actor hidden in game’ option exist.

Check this option, does it simply become visually invisible when playing?

In my case, I used static mesh for groud collision.

(collision preset is block all, use complex collsion as simple.)

(And this object has a perfectly transparent material that is not visible.)

But if use transparent material, I’m considering the option to ‘actor hidden in game’ because it has a bad effect on performance.

So, I want to make this object to be invisible, but always has collision.

If I check ‘actor hidden in game’ option, Can I get the result I want?

Hidden Actors are effectively removed from level in terms of collision, visibility, physics interactions or tick events, etc.

So you mean, if I check that option, the collisions will disappear when I play?

No, both “Visibility” and “Actor Hidden in Game” checkboxes only toggle visibility, the collision continues to work:

You should be able to obtain the result you want, but if the mesh is never going to be shown consider using collision components instead of a custom mesh collision (if you don’t need that specific shape, obviously)

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That was a perfect answer.
Thank you for your help.

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