This guide will help you improve the preview performance in Alight Motion, reducing the lag when previewing or scrolling through a project.
Alight Motion imposes very few limits on what users can do in a project so that users can let their creativity run wild. However, mobile devices sometimes have a hard time keeping up when previewing complex projects.
We are always working hard to improve performance, but no matter how smoothly the app runs, and no matter how powerful devices become, it will always be possible for users to create projects that push their devices to the limit and therefore slow down in the preview. This guide offers some tips to help you improve the preview performance.
Enable Low Quality Preview (Android Only)
Low Quality Preview reduces the resolution of the preview without affecting the exported video. A lower resolution means significantly less pixels to draw during preview, which can improve preview performance at the expense of visual clarity, although in some cases turning this setting off can actually improve performance. If you are experiencing issues with preview performance, try changing this setting.
Note: Low Quality Preview can be turned on or off in Alight Motion Settings.
Please know that this feature is not available on iPhone, iPad, or Mac because they manage preview resolution automatically.
Avoid Ultra High-Resolution Projects
Resolutions over 1080p, such as 1440p and 4k, can put a significant strain on even the most powerful devices. Consider your viewer demographic when creating videos, and don’t use higher resolutions than needed for your purposes. For example, if you're primarily posting on Instagram where videos are automatically downscaled, 720p may be sufficient.
Use Appropriate Source Video Resolution and Frame Rate
Videos recorded in high resolutions or at high frame rates take longer to decode, which can impact performance. Of course, lower resolution videos don't look as good. When recording a video, choose a resolution and frame rate that will match the project you plan to use it for. If you’re using a pre-recorded video with a high resolution, consider converting it to a lower resolution before using it in your project.
A video with a higher-than-necessary resolution will likely affect the app’s performance as well as take up lots of storage space. For example, using a 4k 60fps video in a 1080p 30fps project will likely reduce preview performance without yielding higher-quality results. One exception when you might want to retain a high resolution is if you plan to use effects that magnify part of the video. In this case, using higher-resolution media will let you zoom in without a noticeable drop in image quality.
Make Performance-Based Choices
Some features or effects in Alight Motion place a heavier burden on your device than others. In many cases, alternative features are available that will give better preview performance while yielding very similar results. For example, Stroke uses fewer resources than Border.
Use Heavy (Computationally Expensive) Features and Effects Judiciously
Some features and effects are more demanding on your device, and can slow down the preview. Using a few of these in your project generally won’t cause problems, but applying these features/effects to many layers concurrently on the timeline can hurt preview performance. For any effects or features with a strength, size, or radius property, higher settings will slow down performance; lower settings will improve performance.
If you’re using the following features or effects, please use them in moderation for optimal performance:
- Shadow (especially with large values for “Size”)
- Glow & Inner Glow
- Contour Gradient & Contour Lines
- Smooth Bevel
- Matte Choker
- Blur (Directional, Radial, Lens, Mask, Motion)
- Long Shadow
- Radial Shadow
Use the Visibility Icon to Turn Layers Off
Next to every layer, there is a visibility icon (shaped like an eye) that can be used to turn the visibility of a layer off or on again. When turned off, the layer is not rendered on screen, and this can reduce the strain on your device. When having performance issues, we suggest toggling visibility settings when performance issues arise. Turning off certain layers can speed up your work, but remember to turn them back on before exporting
Manage Your Audio Settings (Android Only)
On Android devices, when you open the App Settings in the side menu of the app, you can find Audio Resampling. This setting controls the quality of the audio in the project. If you are having issues with audio, such as stuttering audio, or audio that falls out of sync with the video, we suggest setting the resampling to Low while you’re editing a project.
However, don’t forget to set it back to High or Ultra before exporting the project! This way, you will experience the best performance while editing, and also the best quality in your exported video.
Summary and How to Contact Support
We’re always working hard to improve performance in Alight Motion, but we can use your help to identify opportunities for further optimization, as well as places where we can improve this guide.
If none of the above suggestions solve your performance issues, please feel free to contact us at firstname.lastname@example.org! Please include a screenshot of the About screen from Alight Motion. You can access this screen in the App Settings when you first open the app. It will have the Alight Motion logo at the top and information at the bottom about your device and the app.
Please also send us detailed information about the project where you are experiencing performance problems (let us know what kind of media you used in the project, and what effects you have applied in the project).
When sending a message to our support team, please also make sure to reply to any auto responses you may receive, and carefully follow instructions from our support team, so that we can address your concerns! Our normal response time is 1 to 3 business days, due to the volume of tickets we receive, but may be longer during the holiday season (our support team follows Korean and Indonesian public holidays).