Better support for iToo's railclone

[romullus]

New railclone version has many cool features such as uvxform operator, which unfortunatelly fully works with Vray only. Other renderers must sacrifice instancing in order to use those features. That makes impossible to use it in massive scenes. Is it possible to improve Corona instancing to make it work with new railclone features?

I'm sure there's more users that supports that request :]

[antanas]

 Hi, - yeah at least I surely do support this request too - here's http://forum.itoosoft.com/index.php?topic=2606.0 some example of a problem with random material id's I've tried to overcome to no result (( - there are some workarounds of course but those are not as easily done as one might want.
 I think all those incompatibilities can be fixed if Ondra could get some time to get in contact with Itoo's developers to know what exactly those problems are and what exactly is causing them. It would be really awesome to use Corona with Railclone and Forestpack to their full potential at last. 

edit: - This https://forum.corona-renderer.com/index.php/topic,7219.0.html bugreport probably deserve some mentioning too

[Ondra]

I am in contact with them and the material thing will get implemented (there is another report for it). I am not so sure about the mapping thing though, it does not fit well into the Corona architecture