This question is so simple. The poster can take a photo of the living room for backup, and more photos of the TV wall.
1. Download the software for displaying building materials---Home Rubik's Cube
2. Open the software and import the photos of the living room you took
3. Use the outline method to The TV background wall is checked, select the hard bag you like in the library, and drag it directly to the background wall. The effect will be displayed immediately, and the effect is very significant. You might as well try it yourself.