Here are some websites and platforms where you can obtain VRM animation resources:

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1. VRoid Hub

VRoid Hub offers a “Photo Booth” feature that supports the playback of VRM animations.
  • Users can upload their own .vrma files and apply various animations.
  • The platform also provides some free VRM animation files for download[1].

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2. BOOTH

BOOTH is a marketplace focused on creators, which has added a “3D Motion/Animation” subcategory.
  • It allows users to share and sell VRM animation files (.vrma).
  • You can find a variety of animation resources from different creators here, including free animation files[1].

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3. VRM Posing Desktop

VRM Posing Desktop is software for creating and exporting VRM animations.
  • It supports importing .vrma files and exporting them in video formats (such as .mp4).
  • You can purchase this software on Steam and use its powerful features for animation production[2][4].

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4. GitHub VRM Specification

The official documentation and specifications for VRM Animation can be found on GitHub.
  • It provides detailed information on how to use VRM animations.
  • Includes guidelines on how to import and export animation files[5].
These resources provide you with a wealth of tools and platforms to acquire and create VRM animations.