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Motion Blur not working on C4D Hair with Instance Object
Posted: Mon Jul 18, 2022 5:32 pm
by nicspoon
Hello! do anyone know how and why c4d hair is not giving me motion blur?
A cube seem works fine when place in the scene, but C4Dhair with instance(object) has no motion blur.
please help thanks!

Re: Motion Blur not working on C4D Hair with Instance Object
Posted: Tue Jul 19, 2022 12:01 am
by aoktar
I'm pretty curious as I see this post! What are you trying to do with instance object and hair and why? Please share the scene and info! Instances and hair is not working well in C4D as I can know.
Re: Motion Blur not working on C4D Hair with Instance Object
Posted: Tue Jul 19, 2022 5:00 am
by nicspoon
Hi Aoktar, thanks for replying.
This thing u see is a spinning mop, I applied "Add Hair" on a circular spinning plate. + (instance obj on to hair)
the red cube is parenting to the spinning red plate. when I turn on motion blur, the instances object on hairs have no motion blur, u can see only the cube has motion blur.
I wonder what I did wrong?
Re: Motion Blur not working on C4D Hair with Instance Object
Posted: Tue Jul 19, 2022 6:08 am
by nicspoon
oops! I found the problem. but I dono why?? haha
When I uncheck displacement in octane material, the motion blur works! is that a bug?
I had Displacement map for static, but if is motion blur. uncheck the displacement map solved my problem.
Re: Motion Blur not working on C4D Hair with Instance Object
Posted: Tue Jul 19, 2022 7:29 am
by bepeg4d
Hi,
about Displacement and motion blur, it is supported only with Vertex Displacement, Texture Displacement doesn't support motion blur.
Change the Displacement type to Vertex and add some subdivisions, until you see the effect you want.
ciao,
Beppe
Re: Motion Blur not working on C4D Hair with Instance Object
Posted: Sun Jul 31, 2022 1:45 pm
by nicspoon
Hello Bepeg4d & Aoktar
I encounter a similar problem hope you guys can help.
in C4D, I simulate a bubble using emitter, then I convert the animation into alembic files.
U can see in the picture, the cube has motion blur, the bubble which is an alembic file has no motion blur.
Hope u guys can help me with this.

Re: Motion Blur not working on C4D Hair with Instance Object
Posted: Sun Jul 31, 2022 2:06 pm
by nicspoon
i have this TEST2.c4d sample. when is rendering only the cube has motion blur.. but not the bubbles
Re: Motion Blur not working on C4D Hair with Instance Object
Posted: Mon Aug 01, 2022 7:50 am
by bepeg4d
Hi,
if you use a MoGraph Cloner pointing to the emitter, motion blur works in simple Transform mode:
ciao,
Beppe
Re: Motion Blur not working on C4D Hair with Instance Object
Posted: Mon Aug 01, 2022 9:22 am
by bepeg4d
Sorry, it is Monday morning
I forgot ot enable the Render Instance option in the MoGraph Cloner
ciao,
Beppe