Motion Blur alpha problem

[NOSIDE_SARL]

Hello everyone,

I am currently working on a project with fast moving objects such as planes and
I render all my shots with motion blur turned on. My problem is :

when I look at alpha channel of the blurriest frames of my shot, it seems like some buckets didn't calculate anything.

here's an example :



I tried to change the bucket size, but I still have artifacts...

How can I fix that ?

Thank you in advance

[bigbossfr]

Hi,
If you use adaptive DMC, set your min subdivs to 2.

[NOSIDE_SARL]

thank you very much, it's working !

I was using DMC 1 -100, I thought it was a Threshold issue, but apparently no.