Rendering animations, which can vary in duration and complexity, may take hours, days, or even weeks to complete. Due to the substantial time and computing power needed for their creation, a camera preview is generated, providing you with a low-quality version of your final animation.
This preview saves you the time of waiting for each version of your animation to render out.
Rendering your animation requires a significant amount of time and computing power, which comes with a not insignificant cost. That is why the final render of your animation is typically only done once, at the end of your project.
Creating camera previews allows you to watch a version of the animation that includes music, voiceovers, and movement while still being able to make timing edits without incurring high costs. This method ensures that the final version of your animation aligns precisely with your original plan, without totally blowing your budget and timeline.