MocastaApp

Check below to learn how to use it!

https://note.com/polygros/n/n256a422feb53

Update:

[2025-12-17:v0.4b]

Changed the motion selection UI from a dropdown to a scrollable list. Also added support for keyword filtering and sorting.

*The sorting function changes the specifications of the dance motion data. Please be sure to re-download the assets from the Settings tab on the right side of the screen.

[2025-12-16:v0.4]

>>Feature Additions

Implemented a seek bar. You can drag it to freely change the playback position.

Completely revised the UI size.

Removed the smudged characters in the logo and reduced the display area.

Added display of the total animation time and playback position time.

Changed the default startup background to a green screen.

Reduced the phenomenon of background images being “cut off”.

>>Bugfix

When the REC button is pressed during playback, playback stops, but recording can now continue from that position.

Fixed an issue where recording would fail with an error if the Windows username was in Japanese.

Translated with DeepL.com (free version)

[2025-09-13: v0.3] Fixed an issue where the app would hang if the file path for saving videos contained Japanese characters. Changed behavior so only the file is saved in the save folder instead of creating a folder with the same name as the file. Set the default lip sync microphone input to zero.

[2025-08-22] Added dance motions (No app version update required. Can be used as is).

[2025-07-26: v0.2] Added FPS limit setting. Fixed an issue where some VRMs couldn't be loaded.

[2025-07-23: v0.1] Initial release.

 What is the Mocasta App?

Mocasta App is a free and easy-to-use Windows application that lets anyone create short dance videos using their own VRM virtual characters.
It comes preloaded with a wide selection of viral short dance motions. Just load your VRM model, choose a dance motion, and instantly apply high-quality animations to your avatar.

Thanks to the power of virtual technology, all you need to do is select a motion from the app—your character will perform it, and you can watch and export the result as a video with ease.

Key Features of Mocasta App

• VRM Import

Import your own VRM-format model and bring it to life with animated dances.

• Dance Video Creation

Use pre-installed dance motions to animate your VRM model and save the result as an MP4 video.
All videos you create are yours to use freely, and new motion data is added regularly.

• BGM Sync

You can load your own music files and sync them with the video playback for custom soundtracks.

• Background Customization

Easily switch background images using built-in still images or import your own (PNG/JPG at 1920×1080 resolution).

• Model Transform Tools

Adjust your VRM model’s position, angle, and distance from the camera freely.

• Camera Switching

Choose from various camera angles—full body, close-up, side views, etc.
A random auto-switching camera mode is also included for dynamic shots.

• Facial Expression Control

Switch facial expressions with a single click, or use Auto Mode for natural variations like “Happy Mode” or “Serious Mode.”

• Voice Recording

Record your own voice with a microphone to create fully original short videos with custom voiceovers.

• Lip Sync

The app syncs your character’s mouth movement with your microphone input for realistic lip-sync animation.

• Visual Effects

Customize brightness, contrast, and saturation—or apply special effects like retro mosaics, scanlines, or comic-style dithering for added flair.

Sample Videos Created with Mocasta App

• https://youtube.com/shorts/Wp1vqVvhAzw

• https://youtube.com/shorts/hUy9li5Y1qw

• https://youtube.com/shorts/ChIQceXZF5Q