Zooming OrthogonalCamera in QtQuick 3D

[ser_pl]

Hi

I'm creating a scene in with QtQuick 3D and I need to show as several orthogonal projections.
The scene can have various size, but I cannot find how to scale the camera image: it is mapped to a View3D in 1:1 scale.

as a solution, I managed to increase View3D's size basing on the scene size and then to scale the View3D, but there is a limitation that an Item cannot be greater than 16383 pixels. So, if I have the 3D scene bigger than this number, I cannot pu it in my View3D.

Zooming out the camera to scale the initial image could help, but I can't find such option. What could be a solution for the poblem?

This is the code how I instantiate the View3D:

Item {
    id: root

    property real zoom: Math.min(root.width / view.width, root.height / view.height)

    View3D {
        id: view
        anchors.centerIn: parent

        importScene: MyScene
        camera: MyScene.cameraFront 

        // Here I can reach values, too big for be processed
        width: MyScene.xmax - MyScene.xmin
        height: MyScene.ymax - MyScene.ymin

        environment: SceneEnvironment {
            backgroundMode: SceneEnvironment.Color
            clearColor: Theme.gray
        }

        transform: Scale {
            origin.x: view.width / 2
            origin.y: view.height / 2

            xScale: root.zoom
            yScale: xScale
        }
    }
}