Proper way to use motion blur

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Proper way to use motion blur

Postby azumbrunnen » Wed Dec 07, 2022 12:52 am

azumbrunnen Wed Dec 07, 2022 12:52 am
I have a camera that follows along a car and for this scene to work, I really need motion blur on the wheels. However, the car itself is getting blurry too. I read the docs but still cound't figure out how to solve that problem.

Could you share basic steps to get motion blur to work correctly? I'd really appreciate it.

Thanks!
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Re: Proper way to use motion blur

Postby aoktar » Wed Dec 07, 2022 1:07 am

aoktar Wed Dec 07, 2022 1:07 am
Just put Octane tag to over top of car hierarchy. Effect will appear when you activate motion blur from camera. Default values are enough, don't change anything in tags. Just increase the "Time sampling per frames" parameter step-by-step in Octane Render settings if your wheels are turning fast.
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Re: Proper way to use motion blur

Postby azumbrunnen » Wed Dec 07, 2022 8:42 am

azumbrunnen Wed Dec 07, 2022 8:42 am
What about the environment? Do I need to put a tag on every single building too? I still get an unsharp car, which comes from motion blur not camera bokeh. Perhaps I need to bake the object and Octane doesn't support rigged velocity calcuations since the car is rigged?

I just sent you the link in a DM can't share it publicly on forum. I'd really appreciate if you could have a quick look.
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Re: Proper way to use motion blur

Postby azumbrunnen » Wed Dec 07, 2022 1:54 pm

azumbrunnen Wed Dec 07, 2022 1:54 pm
any insight?
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Re: Proper way to use motion blur

Postby aoktar » Wed Dec 07, 2022 3:36 pm

aoktar Wed Dec 07, 2022 3:36 pm
azumbrunnen wrote:any insight?

Make a small test by using some dummy geometry except using full model. It will make you look for different direction..
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Re: Proper way to use motion blur

Postby azumbrunnen » Wed Dec 07, 2022 3:41 pm

azumbrunnen Wed Dec 07, 2022 3:41 pm
I already tried that. I've spent a lot of time on this and exhausted my options unfortunately. any chance you can look into the scene?
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Re: Proper way to use motion blur

Postby SSmolak » Wed Dec 07, 2022 3:58 pm

SSmolak Wed Dec 07, 2022 3:58 pm
Can you add similar option to Object Tag to disable DOF effect from object? Most of the times we don't want blurred reflections while using DOF mainly in product, architectural visualizations.

dof_tag.jpg
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Re: Proper way to use motion blur

Postby aoktar » Wed Dec 07, 2022 6:45 pm

aoktar Wed Dec 07, 2022 6:45 pm
Is this like what you want?
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Re: Proper way to use motion blur

Postby azumbrunnen » Wed Dec 07, 2022 8:42 pm

azumbrunnen Wed Dec 07, 2022 8:42 pm
Yes pretty similiar but it's a rig, not sure if the rig breaks anything. Could you check out the scene file I sent you in direct message? I simplified it for you so it's super quick to understand.
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Re: Proper way to use motion blur

Postby aoktar » Wed Dec 07, 2022 8:57 pm

aoktar Wed Dec 07, 2022 8:57 pm
azumbrunnen wrote:Yes pretty similiar but it's a rig, not sure if the rig breaks anything. Could you check out the scene file I sent you in direct message? I simplified it for you so it's super quick to understand.

I don't have any files in your PM. Please send it again
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