VRImage and Zdepth

[cognizant]

Does applying a zdepth channel to a render make saving with VRImage useless? Will the image file contain the zdepth channel in it and remain after converting to EXR?

I have done several high res images that crash the memory, so using VRimage will help me out. However, I would really like to have the zdepth for post processing.

[arqestevez1]

Re: VRImage and Zdepth

I just tried that yesterday and no... if you use vrimage, you do not get the channels...

[fpedrogo]

Re: VRImage and Zdepth

Unfortunately we can't save the additional channels when you use VRImage.

[merlik585]

Re: VRImage and Zdepth

why? I know it is available,but they don't get extracted.

when you type vrimg2exr test.vrimg test.exr -info

you get the list of channels in the file,so they are there how come it is impossible to extract?

[dkendig]

Re: VRImage and Zdepth

because the tool doesn't do that

[merlik585]

Re: VRImage and Zdepth

weird this says the opposite.


http://www.spot3d.com/vray/help/150S..._vrimg2exr.htm

[dkendig]

Re: VRImage and Zdepth

so you're saying that there isn't a problem, and the tool does extract the channels?

[merlik585]

Re: VRImage and Zdepth

no I am saying they should and they don't

[dkendig]

Re: VRImage and Zdepth

right... so back to what I said earlier...

because the tool doesn't do that

Saying it should do something, isn't the same as saying that it does do something. I don't know why they made the tool unable to extract channels, or why they only extract to the exr format. What if you want a png? ::shrugs::

[andybot_cg]

Re: VRImage and Zdepth

There's an issue with the current vrimage format (from 1.49.01) - the vrimg file does not open/convert correctly (that's where the channel information would be) There was a thread in the beta forum a while back.

*edit: whoops, just noticed this is in the Rhino section. My comment is relevant to the current VfSU version. I dunno about rhino, but if the vrimg output is the same format, the converter should work to extract the channel info. I used to be able to with the older versions.

[merlik585]

Re: VRImage and Zdepth

I would be curious to see if a vrimg generated in vray for max would open and save all the channels,in vrimg2exr

Anyway it would be very very useful if it did.Another thing to wait for.

[fpedrogo]

Re: VRImage and Zdepth

I would be curious to see if a vrimg generated in vray for max would open and save all the channels,in vrimg2exr

Yes, this is possible on V-Ray for Max, it is an additional option called "Save separate render channel" we don't have this option on V-Ray for SU yet. I hope we can add this option in a near future.

Best

[merlik585]

Re: VRImage and Zdepth

thanks,I hope it will make its way to Rhino also,one of these day.