Still no FiberFX PhotoReal motion blur?

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Still no FiberFX PhotoReal motion blur?

Postby rustyippolito » Wed Jun 20, 2018 3:56 am

rustyippolito Wed Jun 20, 2018 3:56 am
Not sure if there was any new news on this topic since the LW 2018 release. Does the new API support native motion blur of FiberFX in Octane? Or are we still stuck using MB passes that take forever...
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Re: Still no FiberFX PhotoReal motion blur?

Postby BorisGoreta » Wed Jun 20, 2018 10:01 am

BorisGoreta Wed Jun 20, 2018 10:01 am
I didn't manage to get MB on fibers too.

Also instances on displaced geometry don't get motion blur too.
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Re: Still no FiberFX PhotoReal motion blur?

Postby juanjgon » Wed Jun 20, 2018 9:51 pm

juanjgon Wed Jun 20, 2018 9:51 pm
Yes, sorry. Both issues are related to limitations in the LightWave SDK. Unfortunately, the FiberFX API doesn't provide the velocity vectors to compute the hair motion blur, and the same happens with instances over mesh with deformations.

I'm thinking about computing the FiberFX MB from the plugin side, evaluating multiple frame steps. It is going to be really slow, but better than nothing, I suppose.

Thanks,
-Juanjo
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Re: Still no FiberFX PhotoReal motion blur?

Postby promity » Fri Jun 29, 2018 10:52 am

promity Fri Jun 29, 2018 10:52 am
Not about FFX, but also about motion blur. I can not make the spinning propeller look like a disk - no matter how I change the settings and the rotational speed of the propeller it still looks like a propeller with some blurring, but not like a disk. In addition, the memory of video cards is heavily loaded - can I somehow solve this?
AMD Threadripper 1950X/64gb ram/RTX 3080 Ti + RTX 2070/Samsung SSD 870 EVO 500 gb/
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Re: Still no FiberFX PhotoReal motion blur?

Postby juanjgon » Fri Jun 29, 2018 5:28 pm

juanjgon Fri Jun 29, 2018 5:28 pm
How are you animating the rotation? Any rotation should be animated rotating the object, not using mesh deformations. For fast rotation objects, you could need to set a lot of transformations motion blur steps ... sometimes 10 or more.

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-Juanjo
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