wheel motion blur
Thanks everyone for your insight and suggestions!
Raffaele: In this particular case I wasn't so bothered with the aesthetics of
the blur, but the wheels seemed to flicker in and out of existence, some frames
the car would appear to hover, others the wheel looked extremely
Sutherland
Sent: Thursday, July 19, 2012 04:40 AM
To: softimage@listproc.autodesk.com
Subject: RE: Car wheel motion blur
One way I have found to do really good motion blur on wings and other stuff
that needs big MB (did not test this case with it as the scene that was posted
was 2012 or 2013 and I am
Sent: Tuesday, July 17, 2012 10:20 AM
To: softimage@listproc.autodesk.com
Subject: Re: Car wheel motion blur
Thanks, I tried your suggestion, but there's nothing wrong with the
parenting. It is related to parenting, but that's not where the problem
lies. It works fine with deformation motion
Have you played with adjusting the motion steps in the renderer options?
Yep, more steps only produce a smoother error :-)
On Wed, Jul 18, 2012 at 11:03 AM, Jack Kao jack@grapecity.com wrote:
Have you played with adjusting the motion steps in the renderer options?
I have reproduced this behavior. 2013 SP1. various types of objects as
parent and child. Even with both rotation and translation on one object.
Manny -- try using a fairly large translation amount per frame.
At low speeds it's not really noticeable. At high speeds it's glaringly
evident.
...@listproc.autodesk.com] On Behalf Of Ed Manning
Sent: Wednesday, July 18, 2012 12:48 PM
To: softimage@listproc.autodesk.com
Subject: Re: Car wheel motion blur
I have reproduced this behavior. 2013 SP1. various types of objects as parent
and child. Even with both rotation and translation on one object.
Manny
: softimage-boun...@listproc.autodesk.com
[mailto:softimage-boun...@listproc.autodesk.com] On Behalf Of Manny Papamanos
Sent: Wednesday, July 18, 2012 1:33 PM
To: softimage@listproc.autodesk.com
Subject: RE: Car wheel motion blur
You're right.
If you paste the parent's translation to the spinning
it might not be a bug, but I wouldn't call it a feature. ;-)
On Wed, Jul 18, 2012 at 1:59 PM, Manny Papamanos
manny.papama...@autodesk.com wrote:
Same thing in 2010.
Although it seems weird, I don't think it's a bug.
It seems related to the way it evaluates the blur without calculating
...@listproc.autodesk.com] On Behalf Of Matt Lind
Sent: Wednesday, July 18, 2012 2:55 PM
To: softimage@listproc.autodesk.com
Subject: RE: Car wheel motion blur
The issue is caused by extreme rotation values.
Motion blur typically solves rotations along the shortest arc between frames.
Which implies the maximum
Most probably the motion samples are creating an arc due to parenting. What
you need to do is to check this is take the fcurves and scale them quite a
bit. This will allows you to see in slo-mo the trajectory of the wheel as
it moves along. If you see the undesired arcing then I would suggest
Thanks, I tried your suggestion, but there's nothing wrong with the
parenting. It is related to parenting, but that's not where the problem
lies. It works fine with *deformation* motion blur with the exact same
center of rotation, so that proves that the problem is in how *transformation
*motion
: softimage-boun...@listproc.autodesk.com
[mailto:softimage-boun...@listproc.autodesk.com] On Behalf Of Arvid Björn
Sent: Tuesday, July 17, 2012 10:20 AM
To: softimage@listproc.autodesk.com
Subject: Re: Car wheel motion blur
Thanks, I tried your suggestion, but there's nothing wrong with the parenting
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