Cloud-native equivalent to VRTs

[remi-braun]

Hello 👋,

I have a question: is creating VRT from COGs an heresy?
If so, what can replace the VRT format in a cloud-native environment?

Usecase: I have this tiled DEM converted in individual COGs tiles stored in my university's S3 compatible storage.
How can I access it through rasterio easily to mimic the on disk behaviour of VRTs?

Thanks a lot!

[vincentsarago]

Salut @remi-braun

is creating VRT from COGs an heresy?

No it's not, it's a super easy/fast way to create virtual mosaic. Recent version of GDAL have improved a lot the performance when working with VRT of COGs

I access it through rasterio easily to mimic the on disk behaviour of VRTs?

Yes this is exactly what we did in https://github.com/cogeotiff/rio-tiler-pds/blob/main/rio_tiler_pds/copernicus/aws/dem.py but using VRT might be better now (but it implies a first step of going through all your files to create the VRT)

[remi-braun]

Thanks for this answer 🙏