Motion Blur Pass with Fusion?

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Old 06 June 2010   #1
Motion Blur Pass with Fusion?

Hey guys,

does anyone of you have experience with Mayas new built
in 2d/3D Motion Vector pass?

Im trying to render that out in order to use that with Fusions
Vector Blur Node, but it doesnt work.

Also im not sure if the Motion Vector Pass from Maya is right...

Any help ?

cheers

Naik
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Old 06 June 2010   #2
How do you render motion vectors?
In fusion u can use "reel smart motion blur3 vector" or build in "vector motion blur"
Show how vector pass looks in fusion(plug motionX,Y,Z chennals to R,G,B)
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Old 06 June 2010   #3
okay its working now - and im impressed how easy it is at the end.

You just have to render the 2D motion Pass in maya.
Set the Frambuffer to 32Bit RGBA
and disable motion blur of course. ( Tiff - EXR )

Then you can easily plug that pass into the Motion Vector node in Fusion.
Looks good so far - and in my view it looks better than in Toxik ( Maya Composite )

Also you have to check the "normalized button" in Fusion in order to see the
"real" Motion vector colors...

Hope that helps other users.

cheers

naik
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Old 06 June 2010   #4
Originally Posted by naik: okay its working now - and im impressed how easy it is at the end.

You just have to render the 2D motion Pass in maya.
Set the Frambuffer to 32Bit RGBA
and disable motion blur of course. ( Tiff - EXR )

Then you can easily plug that pass into the Motion Vector node in Fusion.
Looks good so far - and in my view it looks better than in Toxik ( Maya Composite )

Also you have to check the "normalized button" in Fusion in order to see the
"real" Motion vector colors...

Hope that helps other users.

cheers

naik


is the results convincing?
i always use 3d motion blur because its more accurate but render times goes crazy.
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Old 06 June 2010   #5
Quote: is the results convincing?


It always depends mate.
I must admit, i'm pimping the motion vector pass in post
sometimes with a rapid motion blur pass which is much faster than
the "real" 3D motion blur.

I'm doing some rims animation and i can get some cool effects in compositing
after doing some tweaking.

But as i have mentioned before, it always depends what kind of motion blur
you looking after...


p.s of course you are right - 3D Motion Blur - is definately more accurate.
But sometimes, you dont need it...
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Old 06 June 2010   #6
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