Hello,
I'm currently trialling AcrGis Pro to create tile packages for use in Unreal Engine. I have a large amount of ECW files comprising the whole of the UK at varying resolutions.
I initially tried created TPKX files for each ECW file I have, which worked but it wasn't the most efficent workflow and meant that I had to add many layers within Unreal. Not ideal but defiantly workable.
I then tried combining the ECW files using the Mosaic to New Raster tool converting multiple files of one resolution to a single tif, this worked but messed up the colours and resolution.
I then tried creating a Mosaic Dataset and tried adding my ECW imagery to it (as I had done with elevation data of a different file format). However I got the following error while running the Add Rasters To Mosaic Dataset: "Error: 8004818c: No new mosaic dataset item was added". Looking online, this appears to be a known bug in 3.4.
My current workflow now is to create a VRT using QGIS containing my imagery, add this into ArcGis Pro, use "Build Pyramids And Statistics" on the VRT, Manage Tile Cache, Export Tile Cache. I'm not sure why I need to build pyramids & statistics since I thought ECW files contained internal pyramids - but if I skip this step the resulting tile cache only appears at higher zoom levels. So I think this may be a bug when using a VRT containing ECW imagery?
If anyone has any tips in speeding up this process or an alternate way to achieve the same goal it would be greatly appreciated!
Thanks