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I've tried every settings available (mb duration, shuttertime etc...), nothing works when the displacement map is there

remKa wrote: Thu Jun 04, 2026 1:40 pm I've tried every settings available (mb duration, shuttertime etc...), nothing works when the displacement map is there

Thank you for your scene.
That's very strange.. I'm not sure why, but it seems to work when you change the Texture displacement's Quality from High to Normal !
That could be a bug or a limitation of the Octane Engine.. We will report this issue to the Engine team.
Thanks

Hi remKa,
I've increased the motion blur duration only.
I'm going to test this high/normal option with your original setting.
Regards
Paride

HI,
This is a test with settings that seem to work both with MB enabled only in the kernel and with the Octane Camera in Normal and High modes. Could you please test it and let me know?
Regards
Paride

It's kind of working but only with these weird settings and not as it should (the black disk has motion blur, it shouldn't).

I've always used around 0,5 to 2 MB Duration in Octane with shutter time between 25 and 150, as soon as I put these value nothing is working correctly.

I have correct output when I remove the displacement map, please see this attached file (I'm not crazy ^^ !) :

remKa wrote: Thu Jun 04, 2026 3:23 pm It's kind of working but only with these weird settings and not as it should (the black disk has motion blur, it shouldn't).

I've always used around 0,5 to 2 MB Duration in Octane with shutter time between 25 and 150, as soon as I put these value nothing is working correctly.

I have correct output when I remove the displacement map, please see this attached file (I'm not crazy ^^ !) :

Hi remKa,
Thanks
Paride

paride4331 wrote: Fri Jun 05, 2026 6:58 am

remKa wrote: Thu Jun 04, 2026 3:23 pm It's kind of working but only with these weird settings and not as it should (the black disk has motion blur, it shouldn't).

I've always used around 0,5 to 2 MB Duration in Octane with shutter time between 25 and 150, as soon as I put these value nothing is working correctly.

I have correct output when I remove the displacement map, please see this attached file (I'm not crazy ^^ !) :

Hi remKa,
Thanks
Paride

The problem comes from the use of vertex motion blur. The displacement texture seems to be incompatible with the velocities of each vertex..
But a Vertex displacement works fine. It just needs a lot of vertices on the object to get a good resolution.. use the Subdivision level for that, or some modifiers..
Here is your updated sample:

Hello NeonZorblug, is there anything you can do about it or is it a standalone limitation ?

remKa wrote: Fri Jun 05, 2026 2:15 pm Hello NeonZorblug, is there anything you can do about it or is it a standalone limitation ?

It seems to be a standalone limitation. I could reproduce the issue with a more simple case, without tyFlow and will check with the engine team.
For now, the best option is to use the Vertex displacement texture, with Subdivision level ~4 , that gives very close result and works fine with vertex motion blur..
Thanks

EDIT:
This has always been a limitation of texture displacement and actually one of the reasons vertex displacement was implemented.
https://docs.otoy.com/standaloneSE/TextureDisplacement.html

BUG:

OctaneLight has no size when opening a scene from Octane 2025. But it is displayed with proper size in viewport. Had this in several files now.