How to Smooth Animations and Anime?

author - Kistent Waung Kistent Waung

Updated on

Creating smooth animations is crucial for captivating and aesthetically pleasing content. For animation creators, to achieve flawless motion, a blend of technical expertise, artistic creativity, and meticulousness is necessary. For animation fans and viewers, the skill to smooth animations is much easier.

This article will introduce a possible way – AI frame interpolation, to craft seamless and fluid animations for common people to use in daily life.

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  • Smooth animations & anime with AI frame interpolation.
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Note: AI tools for Mac are currently unavailable, but they're coming soon. Stay tuned.

Part 1. Factors to Make Animations Smooth

Before smoothing animations or anime, you can learn some factors affecting the smoothness of an animation or anime even if you are not a content creator. You don’t need to grasp the advanced and complicated techniques to make smooth animations as the animation creators do, but you are suggested to know some basics to help get a more fluid animation viewing experience.

1. Keyframe animation.

Keyframe animation is a widely employed technique in the fields of animation and computer graphics. It is utilized to produce movement and seamless transitions between individual frames, known as keyframes. This method entails the identification of specific frames that hold significance within an animation sequence. With the help of frame interpolation software, intermediate frames between key frames are generated, resulting in a fluid and uninterrupted motion.

2. Frame rate matters.

Commonly, higher frame rates generally lead to smoother motion. For example, an animation video @60fps is much smoother than a video @24fps, while 24fps is the standard FPS for making animation and anime in the industry. The initial stage in the creation and production of animation involves drawing each frame (key frames). Subsequently, the animation effects are made apparent by playing back all the frames in a continuous sequence. As a consequence, if your video is at 24fps, you can only see 24 frames in one second, but you can see 60 frames in one second if you convert your video to 60fps. The video will look more fluid and contain more details.

15fps vs 30fps vs 60fps
Image credit: Digital Citizen

3. Reduce file size.

For online animations, it is necessary to optimize the sizes of images and graphics. When uploading and playing them, reducing file size will facilitate faster loading speeds and seamless animations.

4. Leverage GPU acceleration.

Especially in graphics-intensive applications, leveraging GPU acceleration will offload rendering tasks from the CPU, resulting in smoother animations.

To just name a few, smooth animation playback is influenced by many factors, but the important and only factor animation fans or audiences can control is the frame rate.

Part 2. How to Smooth Animations/Anime?

As said, a higher FPS will result in a smoother motion. If you have a 24fps animation or anime, you can convert 24fps to 30fps or 60fps to make the video look more fluid and increase visual clarity. The technology to this end is called AI frame interpolation which can automatically generate new frames to insert between keyframes to increase the smooth.

The tool with AI frame interpolation function is Winxvideo AI – an AI-powered video and image enhancer to upscale and stabilize videos, remove blur, boost FPS, and so on. This is a powerful frame interpolation software tool that you can utilize to boost video FPS to 60fps/120fps/240fps/480fps, smoothen anime and animation, create slow-motion videos, etc., and enhance video quality.

How to smooth animation/anime with Winxvideo AI?

Step 1. Free download Winxvideo AI, install, and launch it.

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Note: AI tools for Mac are currently unavailable, but they're coming soon. Stay tuned.

Step 2. On the main UI, click on the "Video AI" button to navigate to the AI frame interpolation window.

Step 3. Drag and drop an animation/anime video you want to smooth. Winxvideo AI lets you process more than one video at the same time, including video enhancement, frame interpolation, and video stabilization.

Step 4. On the right part, check the box "Frame Interpolation", and you can start frame interpolating your video to 60fps, 120fps, 240fps, and even 480fps. Just choose from 2X, 3X, 4X, and 5X to double, triple, quadruple, or quintuple the video frame rate.

Smooth Animation

Step 5. Click on "Export Settings" to specify the output video/aduio codec, quality, and GOP; and choose a destination folder.

Step 6. When everything is OK, hit the "RUN" button to start to smooth your animation with Winxvideo AI.

Check more details about how to use Winxvideo AI frame interpolation feature >>


1. How do you smooth an animation?

For animation creators, you should pay attention to many advanced techniques to make a smooth animation, such as timing, easing, optimizing graphics, frameworks and libraries, and so on. As for animation fans, you can try to increase video FPS in daily life with a tool to smooth animations.

2. What fps is smooth animation?

It is widely acknowledged that animations will appear smooth when they are displayed at a rate of 30 frames per second, and 60fps will make the motion butter smooth.

3. Why does my animation look so choppy?

To make an animation appear smooth and seamless to the human eye, it is imperative that it consistently generates frames at a rate of 30 frames per second. If an animation fails to maintain this consistent frame rate, it will exhibit a choppy appearance.

4. What app do I use for smooth animation?

You can use Winxvideo AI, an AI-powered video enhancer, stabilizer, and frame interpolator. You can use it to smooth animation by boosting the video FPS to 30fps or 60fps.

5. How do you smooth out keyframes?

To smooth out keyframes, you need to make use of the frame interpolation technology that can generate new frames according to the adjacent frames and insert between them to smooth the motion and increase details.

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