kirakun0328/text-to-vrma

Text-To-VRMA is a web app that turns a written description, such as walk in place or wave hand, into a motion file for VRM avatars, a common 3D character format. You type a sentence, the AI generates a matching animation, and the app builds a VRMA file right in your browser, playing it on a 3D character on screen so you can preview it before saving. There are two ways to generate the motion. The first uses an OpenAI API key or a Codex subscription to produce keyframes directly, which needs no extra setup and works on any computer, and is good at precise poses, hand gestures, and facial expressions. The second, newer option runs an NVIDIA research model called ARDY on your own computer to generate full-body movement, such as walking, dancing, or jumping, trained on real motion capture data, producing higher quality movement with no per-use cost and no internet connection required once it is set up. When both are available, the app can automatically split a request between the two: an AI model handles understanding the request and translating it into English, while ARDY generates the actual body movement. Generated animations also include facial expressions like smiling, surprise, or blinking, and you can choose whether to include those or only the body movement when saving the file. The interface supports Japanese, English, Chinese, and Korean, switching instantly from a menu. A prebuilt Windows download needs no setup at all. Running it from source offers a simple browser version, which needs only Node.js and a few commands, or a desktop version built with Electron that adds support for signing in with a Codex subscription and for setting up the ARDY engine from inside the app. The ARDY engine itself is optional, requires Python and about 20 gigabytes of downloads, and runs faster with an NVIDIA graphics card, though it can also run on a regular processor at reduced speed. The developer has only tested the app on Windows 11, though it should also work in other browsers since it is a web app. Generating motion with an API key costs a small amount of money per use, depending on the model and animation length.