changing file name each frame during rendering animation

[christian_tremmel]

Hi,

I switched to the new C4D R25.010 plus Vray-5 Update 1.3(v5.10.23) and trying to get my projects to work.
With my last Version R21-3.7 it was possible to change the filename each frame during rendering animation.
I worked with a quite simple XPresso setup, in which connected (from Translator tab) "VFB Image File" with my list of filenames.
In Vray-5 I transfer this prinzip to "V-Ray Image Output".




This Setup works when i Go to next Frame". The filename is changing like a charm. But if i hit "Render to Picture Viewer" or with VFB, each frame get the name from first frame.
Maybe I did something wrong.

Please can you help me? Is there something changed significant? I also opened a maxon support ticket because don´t know is it a C4D issue.
Is it possible to attach my scene file? It seems I'm not permitted to add .c4d files.

looking forward to your answer.
so long Christian

inside Python Node:

import c4d, os

def getframe():
frame = doc.GetTime().GetFrame(doc.GetFps())
return frame


def main():
global output
filename = ['File_RENDER-0001','File_RENDER-0002','File_RENDER-0003']
join = os.path.join(path,filename[getframe()])
output = join

[sirio76]

Is it possible to attach my scene file? It seems I'm not permitted to add .c4d files.

If the scene is very small you can zip the file and you will be able to upload it, otherwise you can use Dropbox or similar service and add the link.

[christian_tremmel]

hello sirio76,

thx for your quick reply and helping me out with attaching the scene file.
The File is super small. Please find it attached

Christian

[YunalZobu]

Works fine on my side.

[christian_tremmel]

Hello YunalZobu,

thank you for answering so quickly. Unfortunately not. The Filenames has to be: File_RENDER-0001.0000.tif','File_RENDER-0002.0001.tif','File_RENDER-0003.0002.tif.
The added number i'll cut after rendering. Following file names should remain:

File_RENDER-0001.tif
File_RENDER-0002.tif
File_RENDER-0003.tif

In R21 Vray 3.7 no problem but in R25 and Vray 5 seams to be difficult

[YunalZobu]

Oh, my bad! So this should be the desired end result, right?
If that's the case, I'd just use the built-in tokens

import c4d, os

def getframe():
frame = doc.GetTime().GetFrame(doc.GetFps())
return frame


def main():
global output
filename = ['File_RENDER-$frame']
join = os.path.join(path,filename[getframe()])
output = join

If the py script is not used for anything else in your pipeline, you could use the tokens right from the output field as well.

[christian_tremmel]

Hello YunalZobu,

much obliged for your help. Unfortunately my description of the issue was a bit weird i guess.
The frame token work perfect and the workaround could be to name the files with the frame token $frame and after finish rendering rename all files with a os method.

Since yesterday I played around with tokens and search for the solution. I prepared a new test scene, showing the issue much clearer.
If you look to the c4d output when using $camera token, the file name has been changed each frame, but if you using the Vray Output System the filename is frozen. Each frame are named with the name from first frame.

C4D Output:



Vray Output:



It showed the issue much clearer, i guess.

Maybe you can look at that again...