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Motion blur randomly turning off

Posted: Thu May 27, 2021 8:53 am
by atoyuser1
When I move my object to different Nulls, the motion blur disables:

Image

Any clues why this is?

I'm using PR11 on Big Sur 11.3.1 R23

Re: Motion blur randomly turning off

Posted: Thu May 27, 2021 10:43 am
by aoktar
What you mean exactly? You need to restart the render after this kind of changes.

Re: Motion blur randomly turning off

Posted: Thu May 27, 2021 10:56 am
by atoyuser1
aoktar wrote:What you mean exactly? You need to restart the render after this kind of changes.
In the Objects null, it is blurred

In the new null Null, it is not blurred

the object tag is exactly the same, so there should be no difference

Re: Motion blur randomly turning off

Posted: Thu May 27, 2021 4:27 pm
by jayroth2020
You cannot use Live Viewer to accurately judge the motion blur results (it is primarily for lighting and shading, not motion). The only test that is valid for motion blur is to actually render and see if the issue persists.

Based upon what you posted, it looks like you have not rewound the timeline from the beginning with the other null, and then advanced forward. If you do so, you may see the result you expect, but again, the best way to gauge it is to render that frame. That is why Ahmet told you to restart.

Re: Motion blur randomly turning off

Posted: Thu May 27, 2021 5:05 pm
by atoyuser1
jayroth2020 wrote:You cannot use Live Viewer to accurately judge the motion blur results (it is primarily for lighting and shading, not motion). The only test that is valid for motion blur is to actually render and see if the issue persists.

Based upon what you posted, it looks like you have not rewound the timeline from the beginning with the other null, and then advanced forward. If you do so, you may see the result you expect, but again, the best way to gauge it is to render that frame. That is why Ahmet told you to restart.
Thanks, rewinding didn't work, but rendering the output NG sequence produced motion blur.

I did not know this

Thanks again

Re: Motion blur randomly turning off

Posted: Thu May 27, 2021 5:55 pm
by jayroth2020
You're welcome.