How do you change the way your screen turns off without an app on Samsung Galaxy S8?

Okay so when I first got my s8 I turned my phone off and it turned off with black on each side closing in. (If that makes sense, it's like a tv turning off) I thought it was really cool the way it turned off but then later on I don't know if I changed a setting accidentally but now my screw turns off with a fade. So is there a default turn off setting that changes the way your screen turns off without getting an app?

Hi Shanwiich. Did you recently get an update on your phone? Some Samsung Galaxy S8 users lost this feature.

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