There are two ways to do this. Take photoshop software as an example.
1. Take a picture of the wall to be made first. Then open the photo in ps. Then modify the photo to make it square and beautiful. Then edit what you want to do on the wall to the wall of the photo. You can add a background board to make a three-dimensional effect. Lighting effect.
2. Measure the length, width and size of the wall to be made, and create a new file in ps to set the size. Then do the wall background and write the words on the wall. Stereo effect, lighting effect. Set the font, color and size. Until the adjustment is satisfactory.
I hope my answer can solve your problem.
Lang Feng advertising design focuses on the design, production and installation of the sign wall. If necessary, I can help you design it for free.