AR/VR visualization

[CorentinGaut]

Hello there,

Context

With @clementcolin (Carl Software) and myself (LASTIG/IGN), we are interested in supporting AR visualization in iTowns. We are starting this discussion thread to lay out all the features we might need in common and to share certain tasks.

Existing Work

Thanks to the work of @AnthonyGlt, an initial integration of WebXR is already available for VR visualization. We want to build on this work with an AR example and much more. On my side, I have already experimented with an AR example available in this GitHub repository. The main AR contribution is aligning geospatial 3D data with the real world. Here is a first example with manual alignment using camera rotation so that WFS data overlaps with real buildings (video).

Features

I propose a set of features to develop in iTowns to best meet the XR needs of the community. This list will evolve over time.

• Finer alignment of 3D data with the real world
• Choice of the augmented reality headset reference space system
• Interaction with 3D data and visualization of metadata