How to convert 16 IRE back to 0?

Luxo wrote on 8/14/2003, 7:57 PM

I have one of those prefabricated particle effects CDs, and the .MOV files are all rendered with a 16 IRE setup. In order to use various compositing modes (add, subtract, etc.) with them, Vegas needs them to have an black IRE level of 0.

Whats the best way to push the black levels down? Or am I missing a more elegant solution?

Comments

BillyBoy wrote on 8/14/2003, 9:04 PM

Broadcast Colors filter.

Luxo wrote on 8/14/2003, 9:23 PM

But the clip is broadcast legal, that's the problem. How do you use the broadcast colors filter to bring luminance levels from 16 down to 0?

farss wrote on 8/15/2003, 9:37 AM

Couldn't you just use a luminance key set to 16 IRE to make the black transparent?

SonyEPM wrote on 8/15/2003, 10:01 AM

Is there an alpha channel in these files? That would make it really easy to key-

Luxo wrote on 8/15/2003, 11:53 AM

Brilliant idea....sometimes the most obvious answer is tough to see. :-)