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motion blur problem with an animated bezier deformer

Posted: Mon Jan 24, 2022 11:34 pm
by portnicki
Hi,

I'm trying to animate a piece of geometry that is beeing slid along a curve. To do that I'm using a Bezier Deformer. It works pretty well but I'm not getting any motion blur with that motion. Other moving geometry in the scene blurs correctly, only this specific mesh stays sharp.
I've tried "reloading Mesh each Frame" checkbox, doesn't work.
Not sure if I'm missing something or is it a bug or some modo-to-Octane limitation (?)
motion_blur.jpg

Re: motion blur problem with an animated bezier deformer

Posted: Tue Jan 25, 2022 12:59 am
by promity
I'm not sure how it's implemented in Modo, at least I didn't find it in Modo's documentation section, but in Lightwave it's implemented through an additional option in the motion blur tab - geometry deformation.

Re: motion blur problem with an animated bezier deformer

Posted: Tue Jan 25, 2022 5:01 am
by face_off
Hi

You won't get motion blur on that item from the plugin, as the Mesh's vertices are being animated/displaced by the Bezier, but the actual Mesh items's transform does not change. If you could bake the Bezier motion into the Mesh item's transform it would work. So as per viewtopic.php?f=34&t=73940 you would need to Export to ORBX and render in Octane Standalone to get motion blur on that item.

Thanks

Paul

Re: motion blur problem with an animated bezier deformer

Posted: Tue Jan 25, 2022 12:59 pm
by portnicki
thanks guys. I will animate this some other way I guess.