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Charakuru kit splits VRM avatar work between user and AI

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Charakuru kit splits VRM avatar work between user and AI

3 Key Points

  1. What happened

    Nano published Charakuru on GitHub; it combines Tripo and Blender, with Codex handling generation and export while the user approves images and picks among four head and body model options.

  2. Why it matters

    The split lets a user keep visual judgment while the agent does the file work, so building a 3D avatar from one illustration needs less manual Blender operation.

WHO IT HITSIndividual creators and small studios who want 3D avatars from a single illustration may find the approval-based workflow lowers the Blender skill needed, though they must supply their own Codex and Tripo accounts.

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Context & Analysis

Charakuru packages a procedure devised by developer Nano into a local confirmation app plus instructions for an AI agent. The workflow starts from a single full-body illustration: the agent draws eight images covering the head and body from four directions each, and the user can request a fix for just one image. Tripo then generates 3D models, and the user selects each head and body from four candidates. The user never lets the agent decide model candidates; visual decisions stay with the user, while the agent exports and registers intermediate files. Before completion, a walking motion lets the user check how shoulders and knees bend, and there is a step to set hair and costume sway. The finished avatar is saved in VRM 1.0 format after registering the model name, author, and usage terms. The kit runs its confirmation app locally, but image and 3D generation rely on external services, so each service's terms, fees, and credits apply separately. The license allows both non-commercial and commercial use within its conditions, but redistribution needs prior consultation, and businesses with annual revenue or cumulative funding of 100 million yen or more need a separate written license for commercial or business use.

FAQ
What do I need to use Charakuru?
You need Node.js 22 or later, a desktop Chromium-based browser such as Chrome, Codex with image generation and browser control, a Tripo account, Blender 5.2, VRM Add-on for Blender, and Blender MCP.
Can I use Charakuru commercially?
Yes, within the conditions, for both non-commercial and commercial use, but redistribution requires prior consultation. If annual revenue or cumulative funding is 100 million yen or more, a separate written license is required for commercial or business use.
What are the current limitations?
New characters are limited to a normal facial expression, with no expression switching or gaze movement. The kit is still in development, so bugs, missing features, and incomplete documentation exist.
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