problem with motion blur in render

[marcin_maciejewski]

hi
I am writing about Vray beta to blender ver 7.00.10
We have blender 4.2.0 and we have a problem with motion blur in render.
We have a fast animated object in the scene and a camera with motion blur turned on. it doesn't work.
We set it up many times in vray for 3ds max - it always works great.
What do you think? Is it the beta version's fault or is there a hidden option somewhere to enable it?
Tested od standard blender camera and vray physical camera.
Thanks

scene file

https://filebin.net/wpzf8so6tglt4lhq/vray_mb_test.blend

[daniel.kapsazov]

Hello marcin_maciejewski, Thanks for the provided scene. It appears that you are unable to see any Motion Blur due to the Camera Type being used, specifically the Latency parameter, which would normally control Motion Blur.
This issue has been logged with our Development Team, and they are currently working on a fix. In the meantime, to enable Motion Blur, I recommend using either the Movie or Still Camera Type.
blender_2025-01-29_18-05-29.png

If you experience any further issues with this, don’t hesitate to write here, and I’ll be happy to help out.

[sean_krouse]

My solution to this issue was changing the Frame Range setting under Output Properties to Animation instead of the default single frame

still having issues getting a desired result but this solved the issue of it not being there, hope this helps!