Film special effects, a person is sending a text message, and then a text message similar to a barrage appears next to the character. How can I get this special effect?

This is not a special effect, and many kinds of software can achieve similar effects.

More complicated is AE, which can be completed by simple ordinary non-editing software, such as PR, but it is necessary to make the effect map (such as translucent effect) in advance with PS.

A common fear on the Internet is to add LOGO with transcoding software or subtitle special effect code. This is the most troublesome thing to do, but many people use it. ...

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Sound effect is track matching.

You see, if the pop-up window changes, such as from small to large, then AE is more likely, editing is a bit troublesome, and the picture combination effect is not good.

But if it only appears gradually, it will only appear after non-editing, or it will be recorded in the process of pressure conversion.

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But in either case, the video needs to be generated twice, so it is better and faster to generate it with software such as AE and PR.