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Rendering with Arnold in 3ds Max using the MaxtoA plug-in.
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why is my camera stuttering during movements (not in playblast)

14 REPLIES 14
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Message 1 of 15
Anonymous
634 Views, 14 Replies

why is my camera stuttering during movements (not in playblast)

I have encountered an issue when rendering a camera pan at 24 fps- the move is 200 frames long and is a very short distance-

while I get smooth playblasts of the animation after rendering there is a stutter in the motion, like the camera is on stepped keys. it is a simple push in nothing complicated about the move

I am running maya 2017 update4

Arnold 5.0.1

i7 3.5GHz

32GB

windows 10

rendering to ZYNC

https://www.youtube.com/watch?v=gyqYE2h_npo

14 REPLIES 14
Message 2 of 15
Anonymous
in reply to: Anonymous

@Stephen Blair would you please help me debug this issue-

Message 3 of 15
Stephen.Blair
in reply to: Anonymous

There's no camera movement at all in Maya 2017 Update 5

Is this repro on your own machine, or just on Zync?



// Stephen Blair
// Arnold Renderer Support
Message 4 of 15
Anonymous
in reply to: Anonymous

is it a bug with update4 and Arnold?
I have been holding of on updating to that -cuz I have PTSD on upgrading during a project

Message 5 of 15
Stephen.Blair
in reply to: Anonymous

No. There's been no reports of problems like that.

Update 5 seems to do something, because the camera animation in your scene doesn't even work in the viewport.



// Stephen Blair
// Arnold Renderer Support
Message 6 of 15
Anonymous
in reply to: Anonymous

I have fine camera control in the viewport and in playblast (update 4)- final renders are the issue.
I will try update 5 - :nervous:

I have not tried a local render due to time constraints- now it seems like a test to be done-

Message 7 of 15
Stephen.Blair
in reply to: Anonymous

For testing, I hid everything except the TrapGRp.

Created a new camera and animated it.

Rendering that out now...first 100 frames look smooth as the camera slowly zooms in

Didn't try fixing TheCam yet. Will remove the animation and try...



// Stephen Blair
// Arnold Renderer Support
Message 8 of 15
Anonymous
in reply to: Anonymous

oh man- thank you so much for digging this deep-
shit- I was expecting it to be something with my samples, lights, cameras or shutter -

Message 9 of 15
Stephen.Blair
in reply to: Anonymous

I got TheCam to work, after I added another key on TranslateZ, the camera animation started working again. I rendered a test out, and the camera move was smooth.



// Stephen Blair
// Arnold Renderer Support
Message 10 of 15
Anonymous
in reply to: Anonymous

could you snag an image of the graph editor so I can re-create?

really a extra TranslateZ key ??weird- but great - GREAT

super huge thanks man

Message 11 of 15
Stephen.Blair
in reply to: Anonymous

The Z value is just .002 different. I was trying to drag the existing key around, so it kinda happened by accident. But after that I say that the camera was moving...

588-graph-editor.png



// Stephen Blair
// Arnold Renderer Support
Message 12 of 15
Anonymous
in reply to: Anonymous

any idea of what is going on under the hood to create that issue? was the camera in y sceen looking for a z coord and glitching?

Message 13 of 15
Anonymous
in reply to: Anonymous

@Stephen Blair

sorry man- I tried your work around and same result-

running update5 now and Arnold 2.0.2 - sent to zync- setting up a local render to see if that is the issue- but I made extra keys on the camera - nothing doing-
I am not skilled enough to know if this is an Arnold issue or just my bad file and Maya skills-

Thanks for taking a look under the hood with me- but I will keep banging till it's fixed 🙂

s

Message 14 of 15
Stephen.Blair
in reply to: Anonymous

Ok, it looks like it was something else I did.

I made one change to your original scene file, and when I loaded it into Maya 2017 Update 5, the camera moved.

I commented out the line that hid the camera:

createNode transform -n "TheCam";
	rename -uid "89DF2D4B-47EC-F585-BB16-049854FB6440";
//	setAttr ".v" no;
	setAttr ".rp" -type "double3" 7.1054273576010019e-015 0 0 ;
	setAttr ".rpt" -type "double3" 5.2552348420771851e-015 1.1790233641732441e-014 1.071907152280091e-014 ;


// Stephen Blair
// Arnold Renderer Support
Message 15 of 15
Anonymous
in reply to: Anonymous

hey @Stephen Blair- I did take and render this locally and did not get the camera stutter- So I have rebuilt the camera move and baked keys on it- thanks so much for taking a look-totally pointed me down the right hall-- Thanks so much for the help

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