How did you take this picture of the horizontal line bending? Or later? thank you

Such a picture can be shown by direct shooting, although we can't absolutely rule out the possibility of making reflections in the later stage.

To shoot such a reflection, you need to choose the right shooting position and angle under the right light and water conditions. Because it is a right angle, there is total reflection on the water surface, and there is no interference from extra light, so you will see an effect similar to specular reflection.

From the photo itself, the reflection in the water is properly deformed, except for the reflection, other photographic elements are very general, so it is very possible to shoot directly. If it is post-production, the production level is very high, the material selection level is not high, and the possibility is low.