Quick3d Material dynamic Texture with ImageProvider - not possible

[kjaft]

Hi folks,
moving from 2D (GridView) to 3D (Repeater3D) for kind of a Thumbnail-view. The GridView is used with a C++ model with delegate containing an Image fed by a custom Image(Response)Provider. Works like a charm.
According to the docs unfortunately I cannot just use an image provider as source for the according texture in Quick3D:
The property is a URL, with the same rules as other source properties, such as Image.source. With Texture, only the qrc and file schemes are supported.

Now I'm kinda stuck - how can I actually achieve something similar? Using a QQuick3DTextureData-based approach? But that is not directly possible to interface with the existing image provider.

Any ideas?

thanks
Felix