How did the gun god shoot the gun?

The cannon in the movie Gun God is made of special effects. Specifically, the film production team used computer graphics technology and physical simulation technology to import the actual artillery model into the computer, and then simulated the firing process of the artillery through the computer, and finally presented the simulation results on the screen. In the process of shooting, the film production team also needs to use special cameras and lenses to capture the pictures fired by artillery, and combine special effects with real-life pictures through post-production technology to make the whole picture look more realistic. Generally speaking, the cannon in the film is made of special effects, which has been widely used in modern film production and can create very realistic special effects pictures.