Mobile-friendly viewer for 3D and 2D model formats supported by the Castle Game Engine:

- glTF,
- X3D,
- VRML,
- Spine JSON,
- sprite sheets (in Castle Game Engine, Cocos2D and Starling XML formats),
- MD3,
- Wavefront OBJ,
- 3DS,
- STL,
- Collada
- and more.

In addition to the above formats, it also allows to open a ZIP file that contains a single model and associated media (like textures, sounds etc.).

The application comes with a few sample files, and naturally you can open your own 3D and 2D model files.

The models must be self-contained, e.g. you have to

- use GLB with all the textures packed in one file,
- or X3D with all textures expressed as PixelTexture or data URI,
- or just put your model with data (like textures) inside a zip.
- We have documented how to make your models self-contained here: https://castle-engine.io/castle-model-viewer-mobile