Did you dive into the 3D Viewer from the Marketplace?
If for any reason you don’t want to use this service, the easiest way to display a 3D interactive image is by using the model-viewer html element. I believe there is a widget for that in the Marketplace already:
If for any reason that widget is not good enough, you can build your own based on the model-viewer HTML element. You would need to create a pluggable Mendix widget for this. You need advanced Mendix and JavaScript/React skills for this.
i uploaded 3d viewer in to an mendix app, i dont know the next steps ? :(