Backburner wont save completed renders

[deflix]

Ive had this before but have forgotten the workaround, so any help greatly appreciated, as I have zero time to resolve.

I have 20 x 6k images to render, and everything works fine on each until it comes to writing to disk. When the rendering is complete BB returns some cryptic msg about a TIFF error (even if i'm writing PNGS) and then just restarts the rendering from the start (see screen) without writing anything to disk??

When I came in this morning I didn't have one finished image, because it had just sat there all night failing to write to disk after each COMPLETED render, and then restarting. I am writing a number of passes for each image, and using the VFB.

Anyone able to jog my memory as to what autodesk bullshit is causing this?

thanks in advance.....

[Dariusz Makowski (Dadal)]

Out of HDD space?

Try EXR.

[deflix]

lol, gotta ton of space so not that.
Seems to do it regardless of saved format. actually the error message doesn't make any sense because I'm not opening anything - i'm trying to save.

[Dariusz Makowski (Dadal)]

Active backup somehow? Virus? Humh... very strange! Try different folder? Maybe u don't have permissions to access folder...

[deflix]

I forgot to mention I can save successfully from the VFB window on the nodes.
Please help...

[Dariusz Makowski (Dadal)]

Thats worrying... strange. Did you try to save to different folder maybe?

[Morbid Angel]

you are most likely running out of memory. Render into vrimg that should save just fine. Then convert the vrimg to format you need. Holding a 20k image in ram is a lot not to count the memory for the 3d and other stuff.

[jacksc02]

yeah you need to use VRimg and dont use "render to memory frame buffer"

[deflix]

you are most likely running out of memory. Render into vrimg that should save just fine. Then convert the vrimg to format you need. Holding a 20k image in ram is a lot not to count the memory for the 3d and other stuff.

It worked after a I restarted BBManager and server on all the nodes. Will render to VRimg next time, so thnks for the tip guys

[Dariusz Makowski (Dadal)]

Wow nice one, thanks! Good to know.

[deflix]

So if using Vrimg how do I open my passes into photoshop without using the VFB or buying additional warez?
If using EXR how do get my passes - the output seems to be RGB only?

fyi I normally save separate TIFS for each pass and use the script/load files into stack in photoshop for my comp.

Why can I not simply save my passes as any format without being restricted by memory?

cheers.

[Dariusz Makowski (Dadal)]

Its the way different formats are stored/saved. For example tiff/PNG has to be fully saved in to ram and then copied to HDD from what I remember. Which low memory PC will fail to do and crash -if u render 20k+

Where as EXR's can be saved strip by strip or bucked by bucked to ur hdd as it renders so its saved memory.

[deflix]

Its the way different formats are stored/saved. For example tiff/PNG has to be fully saved in to ram and then copied to HDD from what I remember. Which low memory PC will fail to do and crash -if u render 20k+

Where as EXR's can be saved strip by strip or bucked by bucked to ur hdd as it renders so its saved memory.

that's interesting I didn't know that. My images are only 6k but i needed to render 20 of them

........Ok I just read that I cant have the passes without using the memory FB - pretty lame.

[Dariusz Makowski (Dadal)]

Uh its been long since I used max...but if u don't use VFB and in EXR configuration file(select format and press options/settings) you should be able to pick passes you want to add and thats it.

[deflix]

Uh its been long since I used max...but if u don't use VFB and in EXR configuration file(select format and press options/settings) you should be able to pick passes you want to add and thats it.

Just checked the official documentation

Save separate render channels - this option allows you to save the channels from the VFB into separate files. Use the Browse... button to specify the file. This option is available only when rendering to a memory frame buffer. If rendering is done only to a raw image file, the render channels can be extracted from that file after rendering is complete.