We have released Castle Model Viewer Mobile on iOS (iPhone, iPad) and you can get it right now from the App Store!

Open this link to the AppStore on your iPhone/iPad, or just search for “Castle Model Viewer” in the AppStore. We’re available in all AppStore regions (including US and EU).

You can open a number of built-in models (in X3D, glTF, IFC JSON and other formats we support). You can also open your own models, provided they are “self-contained”. More information about our features, and in particular about “Opening your own models” and what it means that “Models must be self-contained” is on Castle Model Viewer Mobile webpage.

The application is completely free, also no ads and no tracking, and it is naturally open-source and using our free and open-source Castle Game Engine.

In return, we ask that you consider donating to us and/or giving us a good rating on the AppStore 🙂

Of course, if you have any problems or questions, go ahead and ask. Various ways of contacting us are here, in particular you’re welcome to our forum or submit GitHub issue.

I’d like to thank Jan Adamec for working on this application, as well as on a lot of related iOS-specific improvements in Castle Game Engine. I’d also like to thank a sponsor (who wished to remain anonymous) for covering our Apple membership fee for 1 year. Much appreciated.

The Android version of the viewer was also updated, with:

• Various mobile improvements in the engine announced last time.
• New built-in demos: shadow maps, shadow volumes, screen effects. Some of these demos have also been upgraded in demo-models.
• Fixed handling of TouchSensor (for clicks in X3D/VRML models).

We also added unit GameScreenShotArbitrarySize that shows how to take screenshots using FBO, in arbitrary resolutions (maybe larger than your monitor), maybe in multiple resolutions at once. Useful when some app store requires screenshots in a few particular resolutions.