Still no FiberFX PhotoReal motion blur?

[rustyippolito]

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...

[BorisGoreta]

I didn't manage to get MB on fibers too.

Also instances on displaced geometry don't get motion blur too.

[juanjgon]

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

[promity]

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?

[juanjgon]

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.

Thanks,
-Juanjo