View Full Version : 11.6 motion vectors broken.

08-05-2013, 05:20 AM
Can someone confirm this? 11.5.1 renders motion vectors in a way they can be used directly in Fusion but 11.6 renders something what looks blown out and gives strange results.

08-05-2013, 06:07 AM
I used the 11.6 motion vectors without problem in Nuke ( just have to invert the x vector - don't ask me why). It even works with instances now...

08-05-2013, 06:21 AM
Mmmm good to know. Are you sure the where rendered correctly? My whole image gets blurred when I used them. In fusion you also need to flip the X vector but that's not the problem. When I compare the vectors from 11.5 and 11.6 they look totally different.

08-05-2013, 08:26 AM
I have not used it in 11.5, primarily because it did not work with instancing but in Nuke I was able to tune the amount of blur needed without problem.

Actually, my scene was using camera movement, so i was kind of expecting the blur to apply to the whole image. I'll check again with different scene when I have the time...

08-05-2013, 04:19 PM
Is there a rogue colorspace setting screwing with the output gamma?

08-06-2013, 03:41 AM
I created a new scene and found the bug. Each AA pass ads more garbage to the image. With AA at 0 everything is fine. With AA at 4 - 12 you get the image I attached.
I also attached the scene so someone else can check.

In my original scene the garbage was even worse. There something going on with the shadow in the vector pass.

08-06-2013, 03:51 AM
Well the good news is that 11.6 we got now is the beta version, so still time to fix it:) Please report the bug if you can.


08-06-2013, 04:07 AM
Yup. Fogged it! :)

08-06-2013, 10:04 AM
So until it's fixed I guess we'll have to render a separate vector pass.

08-06-2013, 10:06 AM
Yes or use 11.5.1 ;)