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Old 07-04-2006, 10:01 PM   #1
le_geo
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Default Playblast and Renders don't match

Hi,

I'm not sure if this is the right area to post this, or if it has been explained before, so please forgive me if this is the case.

I'm just wondering if anyone can explain why my playblasts and renders differ in length?

My renders seem to be faster than playblasts, and I have to 'slow them down' in my editing package to get them back in sync.

I'm intrigued to know if anyone else has had this problem, and also if anyone knows how to solve it?

I'm pretty sure it's a tick box ticked somewhere that doesnt need to be! It is rather annoying. Any advice or suggestions would be greatly appreciated!

PLEASE HELP! Haha.

Thanks for reading.

George.
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Old 08-04-2006, 05:21 PM   #2
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Check your render globals. Under the COMMON tab, make sure that "By Frame" has a 1 in the box. 1 means that every frame will be rendered. A 2 would mean that every other frame would be rendered. A 3 would mean every third frame and so on......

If you are not rendering every frame then that would make the final animation appear to be moving faster.

Edit::
I just had another thought: you said that you have to slow the rendered images down in your editing software to bring them back into sync. I assume this means that you are compositing CGI onto actual video footage?? If so, The problem could be that you have Maya settings set to 24 fps yet your video is 29.97 fps (NTSC). If this is true then the animation will appear one way in Maya then it will appear much faster in your editing program. There will even be a slight difference if you have Maya set to 30 fps. Since 30 fps is not exactly 29.97 fps there will be a sync problem too.

Check it out and post what you find...
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Last edited by Velusion : 08-04-2006 at 05:29 PM.
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Old 08-04-2006, 06:22 PM   #3
le_geo
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Thanks for your suggestions.

I know that By Frame is set to 1, so that isnt it.

I'm not compositing CG into video, I have before, and used frames, and it matched fine.

What I'm doing is lip syncing, and the render is faster than the audio. I've spoke to people on my course, and some have the same problem, but none of us know how to fix it.

I just cant think why the playblast would be different, unless it's operating on a different frame rate!?

Thanks again.
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Old 08-04-2006, 10:44 PM   #4
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Does the audio sound different in Maya and in your editing program. I mean, does one sound faster? Perhaps Maya or your editing program is resampling the audio which could cause it to speed up or slow down.
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