Vray 3/3DSMAx 2014 - render hang out

[Boris Horosavin]

Hi,

Got a large exterior scene, yet not too large, i think. I didn't make the building model, it was imported from ACAD or some derivate. Whenever I try to render even medium-low details/resolution image I get a hangout in the end (when it says: rendering done). It just freezes at that point.

What could be causing the problem? I get no warning whatsoever in the dialog box. I've raised dynamic mem. limit, turned bitmap paging on - nothing.

Help, please.

[Boris Horosavin]

Hm, just tried the oldest trick in the book: to merged everything with a new blank file - and it seems it actually worked. Nevertheless, I would sure like to know what's causing these sort of things...

[Scott Dombrowski]

That's interesting... I get a similar problem with mental ray and distributed rendering. It gets to 100% then hangs. I can save the image from the frame buffer, but can't do anything else and have to kill the Max process. Without using DBR, it works fine. I haven't tried merging the scenes into a new file yet.

[Boris Horosavin]

Strange, it seems to have something to do with this auto gamma solution in Max2014, which I really dislike btw.

Basically, I was trying to keep gamma and lut settings from a previous file (you know, "Keep the system's Gamma and LUT" option). It was set to 2.2/1.4, I simply like it better and it really suits R&D foliage i use often. And after I do that the hangout problem starts the next time I open the scene and try to render it. But when I make a clean 2014 file with default settings and merge the scene with it - it all works fine again.

It must be about gamma/lut sets, but I just don't have sufficient technical knowledge to understand what exactly is causing the problem.

Anyway, I just thought somebody could find this info useful.