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Render Size
I have a multicam project that had two camera sources, one is HD 1920×1080 and the other is DV 720×576 anamorphic. The event was a play, and lasted, in total, about 2 hours 15 minutes.
In order to run multiclip, I needed to convert both the source clips to the same format/codec as shown in many other tutorials. So my settings were ProRes 422 (to match the main source clip) and thus then uprezzed the DV clip. I then import both clips back into FCP created a multiclip clip and edited away. All is good, and I have finished the 1st pass multiclip edit, but,,
What I have noticed on disk, is that the file generated using the HD source material is 2.75Gb, and the file with the uprezed DV is 67Gb
I don’t understand how the files can be so different. If I had the time, I would do it again, but it takes two hours to render this thing out.
Originally I had all the clips on the same sequence (sequence set to Proress 1920×1080) and then turned off the tracks I didn’t want for each render.
Declan Smith
https://www.madpanic.tv
FCS3 / After Effects CS5 / Combustion / Canon 7D / Canon XL2 -
2 Replies
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Hi Declan,
It sounds to me like the problem is with your HD footage. When I work with 720 30p ProRes 422 from the HMC 150 it works out to about 1 GB for every 2 minutes of footage. From testing I believe 1080i was about 1 GB per minute.
[Declan Smith] “If I had the time, I would do it again, but it takes two hours to render this thing out.”
Unless you used a lot of effects in your piece it sounds to me like your footage doesn’t match the sequence. Check the HD footage and make sure it’s not in the H.264 codec or another compressed HD codec. With no effects I can’t imagine this long of a render time.
I hope that helps.
Mark
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Mark, you were right. Looks like I made a reference movie of the HD footage, as that was the destination codec I guess the 2.5Gb was the gaps that it had to actually render, and it referenced the rest! As for the DV, even though reference was selected, of course it would have had to render all the frames anyway.
Thanks
Declan Smith
https://www.madpanic.tv
FCS3 / After Effects CS5 / Combustion / Canon 7D / Canon XL2
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