@Juraj and all others who struggle with manual vray(or whatever else) setup 3d model library to Corona conversions, path relinking etc. Strictly imo and my way of doing things but it may still be useful to someone.
For library management, conversions and saving back to original folder there's no better and handier tool as Project Manager
https://3d-kstudio.com/product/project-manager/ out there. I've adopted it for my workflow some 2years and a half ago and there's just nothing better for the job, and aside the fact of it's relatively ugly interface (see Connecter for comparison) it is awesome due to it's functionality and can speed up one's workflow quite considerably.
For the asset relinking purpose itself there's at least three solutions which I can recommend:
- again first being the Project Manager - for it is all around combine\3dsMax's Swiss army knife of a sorts )
- second being this P.M's separate and all other functionality stripped\made just for this task, little brother -
https://3d-kstudio.com/product/filepathfinder-pro/ - it is cheaper but can do only that + render thumbnails for models\ies\materials etc. which is integrated in P.M too and which I use quite frequently if there's no preview files available + from P.M. itself you can just simply select those thumbnailess\previewless and overall quite sad looking files in it's asset browser and simply rightclick-render thumbnails for them which is even handier.
Both abovementioned tools have this little function
http://clip2net.com/s/3xQPL9P which, I think, could solve all our large library conversion problems or at least the most annoying and time consuming ones, of course, only, if Martin will be willing to make some custom automatically running converter's version just for that task and give it to us ))
- and the third one being this no less awesome little script
http://www.scriptspot.com/3ds-max/scripts/bitmap-tracking-resizing - which can do the same albeit not in the automatic fashion - it is even cheaper but has way less functionality than the two above - but it can do one tremendously useful thing, well actually two - physically rename selected object's textures on HDD and do texture resize + automatically relink those in place of original ones directly from 3dsmax itself - that was the selling point at least to me as that can be invaluable in some specific scenarios.
Hope that helps as I know what feel so to say ))