Need a codec with alpha support+HD

[Tudor “ted” jelescu]

Can that “certain system” assign alpha to a clip from a matte render (black & white)? It sounds like it should based on the 10mb limitation.

Tudor “Ted” Jelescu
Senior VFX Artist

[Walter Soyka]

What is the system? What codecs does it support?

Speaking generally, some codecs which support HD and alpha include QuickTime PNG, DNxHD, and ProRes 4444.

Walter Soyka
Principal & Designer at Keen Live
Motion Graphics, Widescreen Events, Presentation Design, and Consulting
RenderBreak Blog – What I’m thinking when my workstation’s thinking
Creative Cow Forum Host: Live & Stage Events

[Eran Solomon]

Thanks for the reply everyone.

i don’t have specific info on the system since its used in a different facility all together.
what I can tell you is that its a lower third, animated. so its wide (1080) but only 500px high (including the upper transparent part)

What i do know is that the files that are imported into the system should not be more than 10mb.
no matter what codec i tried – i only get it out at around 150mb.

Is this even possible?

[Juan Manuel]

JPEG2000 might do it, but the file size restriction is odd. Trying to get it under 10 MB might sacrifice too much quality.

[Hope Holmesby]

hi guys, thanks for all your help always

…just wondering…

if you have a flame movie w a black bkg. can you render it w rgb+alpha and get a movie w the black bgk of the movie changed to alpha?
or
do you have to apply an unmult or screen to the layer then render it rgb+alpha , with the comp bkg blk, to actually get alpha?

thanks so much.

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Life is here to enjoy.

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[Hope Holmesby]

hi…just tested the:
png, jpg 2000 and apple prores 4444

the jpg is the smallest file, almost 5 times…
2MB vs 8.9MB

the prores warned that colors would be reduced.
the jpg did not, however since it is a smaller file, probably did reduce the colors, but it is not showing.

however, in the new mavericks OS for mac, if you use jpg2000 or png, you will not get a video preview, nor w an animation codec.

only the apple prores 4444 allows that, until someone comes up w a fix for that.

very sad…

__________________________________________________

Life is here to enjoy.

iMac 3.5 GHz Intel Core i7, 2TB; Mac OS 10.6.8, 16 GB RAM; 2 La Cie external HDs 1 TB each; After Effects CS5.5; Sound Track Pro 3.0.1; Final Cut Pro 7.0.3; Compressor 3.5.3