Video rendering is the process of generating a final video file from a project created in video editing software. This involves taking all the elements, such as images, audio, and effects, and combining them into a single, cohesive video. The software processes these components to create a smooth playback experience. During rendering, the computer uses its processing power to calculate how each frame of the video should look. This can take time, depending on the complexity of the project and the quality settings chosen. Once rendering is complete, the final video can be shared or uploaded to platforms like YouTube or Vimeo.