Need help for animation bug in render

[olivierquanten]

Hello everyone,

 

I registered to this forum because I am facing a situation where I cannot find a solution. I hope anyone here had the same issue, or could help me out because I am desperate

 

So my problem is that I made an animation with 3DSmax and Vray, and I have artifacts in the animation frames but NOT when I render a single frame. So I guess that my problem is somewhere with the settings of the animation, but I can't find where the issue is.

 

This is the result I have when I render a single frame, and the result I would like to have for the whole animation :

 

http://imgur.com/N3LFTNf,Pi2btF4,1xA5J91#0

 

This is the result I have when I render a few frames (notice the weird black shadows that ruin the image) :

 

http://imgur.com/N3LFTNf,Pi2btF4,1xA5J91#1

 

These are the settings I use in Vray and 3ds Max (I use Animation prepass for Irradiance maps, then Animation rendering with the saved IM) :

 

http://i.imgur.com/cV855i5.jpg

 

I am lost here I must be missing something but unfortunately I am not smart enough to figure out what is going on. Why do I have a good render when rendering a still frame, and artifacts when rendering like 10 frames ?

 

Please could anyone help me out ? It would be very nice, because I really have to finish this as soon as possible but my animation is 2400 frames long and I cannot afford using Brute Force because render time will be too high.

 

Of course I will be 150% available to provide more details or send you guys the .max file if you would like to take a look at it.

 

Best regards and thaks for your help !

 

Olivier