cannot output 16bit greyscale png

[WESTON_WILLIAMSON]

i get the following error as if i am on a 32 bit machine, see attachment.

I am trying to create a dispalcement texture so need the resolution to be quite high before i put it in to photoshop, and also need better quality than 8 bit greyscale.

There should be no probs as i have 64 bit max, and 12gigs ram. does anyone know if i am doing anything wrong. The resolution is 5000x2500ish, but it wont even do it on small fence renders

[rivoli]

have you tried with any other format apart from png?

[WESTON_WILLIAMSON]

It works for other formats, and also the other types of png, just not the greyscale png options...8bit...16bit.

[rivoli]

um, never saved to greyscale pngs myself, could be a vray bug? anyway, it's good you can switch to tif or exr.

[stef.thomas]

Are you setting it to save as 16-bit PNG file before you render? Or are you trying to save from the VFB? You should be doing the former.

[WESTON_WILLIAMSON]

@stefthomas...I have just tried both it still doesn't write the output file. I think it might be a bug. I am using 2012 max, and vray2.0. I cvan save any other format, just not greyscale pngs

[rikou]

This happened to me with older version of max, I never knew why so I decided to use other format...
If anyone can enlighten us...