C4dtoA Hair Motion Blur not rendering in Final Render, but does in IPR

[mgenehoffman]

I cannot figure this one out. I made a simple scene with hair on a dynamic torus. Cached the object and the hair.

IPR renders motion blur as expected, but final render will not render motion blur.

[peter.horvath6V6K3]

Seems like a bug introduced in C4DtoA 3.0.2. Can you confirm you are using 3.0.2 or 3.0.3?

[mgenehoffman]

Yes, this is 3.0.3.1

I am also unable to get motion blur on render instances, it would appear. I don't know if that's related or not.

[peter.horvath6V6K3]

By render instances you mean hair instances (Generate tab) or the MoGraph Render Instances? Hair instances seem to work fine with motion blur in my tests.

[peter.horvath6V6K3]

It turned out motion blur is not supported when reading guides from the Hair Effect, it's a limitation in the Cinema SDK. I will revert to the pre-3.0.2 method, which supported motion blur and keep the Hair Effect optional for some special cases.