Visual effects or VFX in its most elementary form are digitally manipulated live action footage. In other words a visual effect is the optimum use of computers to add and remove special effects or anything that wasn’t originally within the shot.
3D has become an inevitable part of life and it's becoming popular day by day. CGI (Computer Graphics Imagery) or extensively known as the 3D Animation process, creates special effects in movies, arts, video games, mobile games, television programs, and advertisements. The 3D images are not hand drawn, but are mostly created using specific 3D software. The structure being built on three axes provides- vertical, horizontal, and the depth effects.
Post-production is the most under appreciated part of creating 3D visualizations. It brings in you the power to easily make some changes; put in the sky you like, add some dirt, make the colors more vibrant and even correct some little mistakes in your 3D mesh.