Old School Ops
GoMMO Art v1.0.0

Model Viewer, Animation Player and Skin Tester

Released 1 October 2026

The first GoMMO Art release, a viewer for the characters, creatures and items in Gate to Heavens, RF Online and World of Kung Fu clients, with hot reload for skin edits and screenshot capture.

Features

  • Supported clients. Gate to Heavens and Gate to Heavens Classic, every RF Online version from 1.0.5 to 4.5.5, and World of Kung Fu. Open a client folder and the game and version are detected for you.
  • Browse by name. Characters, creatures and items are listed by the names the client gives them, with search across names, ids and file names.
  • Viewer. A camera that orbits the model and never drifts off it, with zoom and a slider to move up and down its height.
  • Backgrounds. Studio, solid colour, gradient, checkerboard, your own picture, transparent, or a map from the game itself.
  • Lighting. The game's own lighting or a three-point studio rig, with direction, height and brightness controls.
  • Animations. Every animation the model has, with play, pause, a scrubber, single-frame steps, speed from 0.1x to 2x and looping.
  • Dress-up. Put armour, weapons, hair and faces on player characters, and see an armour piece on a body that wears it.
  • Hot reload. Save an edited texture, mesh or animation into the mod folder and the model reloads with it within a second. The game client itself is never changed.
  • Extraction. Copy a model's original textures and meshes into the mod folder, ready to edit, with optional PNG copies of the textures.
  • Debug views. Skeleton, wireframe, normals and the UV layout of each texture.
  • Screenshots. Save a picture at any size up to 4K with an optional transparent background, a four-angle sheet, or a turntable or animation as a GIF with every frame kept as a PNG.
  • glTF export. Save the model with its textures and current animation as a .glb for Blender and other 3D tools.
  • Updates. GoMMO Art checks for a new version when it starts, downloads it, and installs it the next time it opens.
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