Apple's Reality Composer provides a library of standard objects, with many configurable options. You can change the configuration in Reality Composer, but there is currently no way of doing this from code, beyond a few basic options such as scaling, moving etc.
Does anyone know if Apple has any plans to expose some of this functionality in future releases. It would be really useful, especially if you could add your own Entities to Reality Composer, not just as a mesh resource.
Reality Composer is just an app for simple and quick prototyping. Other tasks, beyond Reality Composer's scope, are for RealityKit that allows you programmatically change/set not only simple transform parameters – like position, rotation and scaling of a model – but also all the necessary options. Here's a list of what you can change in Reality Composer scene loaded in RealityKit:
Moreover, using RealityKit you can programmatically create lights, cameras, and transform animations, implement gestures for models, custom physics, and anchors that aren't supported in Reality Composer at the moment (like .body, .camera or .raycastResult) and other useful stuff.
There are so many things a prototyping app shouldn't do. Especially when it comes to loading methodology, hierarchy customization and rendering. However, I believe that UI for animation and physics will be developed for Reality Composer.
As we all know, Apple never publishes any roadmaps. But many developers impatiently wait for the next major updates of RealityKit, Reality Composer and Reality Converter.
