Chromakey workflow question at DVinfo.net

Douglas Figueredo · December 21st, 2007, 04:18 PM

Hi All - I've really been hunting for the right answers (for months), as well as testing quite a few things myself but I'm still a little unclear on Chromakey work and Cineform. I own AspectHD - works great for converting and using my HG10 footage. Have tested both ProspectsHD and 2K. I'm shooting a lot of green screen, talking head stuff for my job and putting that on top of DJ backgrounds, etc. I've key'ed out the green in both Ultra and AE (CS3) and rendering out to the three flavors of Cineform. Only Prospect2K (trial) would show the transparency (I think it's the only one that supports alpha channel - correct?). Question - Will it show the transparency in real time (as it's playing)? In my tests I only see the transparency (or underlying clip) when PP (CS3) is 'stopped", as soon as I hit 'play' the transparency goes away and I see my talking head in a black square (what has been keyed out). What am I missing, not doing . . should be doing differently . . .any advice is greatly appreciated!

David Newman · December 21st, 2007, 04:22 PM

We don't offer playback acceleration with the alpha channel on yet, waiting for more market interest in alpha channel features. However, if you use CTRL+Spacebar to playback it will do a playback preview with the alpha active.

Douglas Figueredo · December 21st, 2007, 04:28 PM

that was a super fast answer! Thanks.

Paul Cascio · December 21st, 2007, 04:43 PM

That's typical of David/Cineform. Most companies stay away from the front lines, but not David. That's why he gets my respect and my business.

Steven Thomas · December 21st, 2007, 05:23 PM

Quote:

Originally Posted by Paul Cascio

That's typical of David/Cineform. Most companies stay away from the front lines, but not David. That's why he gets my respect and my business.

Amen.
We are very fortunate to have David's technical offerings . Cineform is VERY WELL RESPECTED.

December 21st, 2007, 04:18 PM	#1
Douglas Figueredo New Boot Join Date: Dec 2007 Location: New York, NY Posts: 15	Chromakey workflow question Hi All - I've really been hunting for the right answers (for months), as well as testing quite a few things myself but I'm still a little unclear on Chromakey work and Cineform. I own AspectHD - works great for converting and using my HG10 footage. Have tested both ProspectsHD and 2K. I'm shooting a lot of green screen, talking head stuff for my job and putting that on top of DJ backgrounds, etc. I've key'ed out the green in both Ultra and AE (CS3) and rendering out to the three flavors of Cineform. Only Prospect2K (trial) would show the transparency (I think it's the only one that supports alpha channel - correct?). Question - Will it show the transparency in real time (as it's playing)? In my tests I only see the transparency (or underlying clip) when PP (CS3) is 'stopped", as soon as I hit 'play' the transparency goes away and I see my talking head in a black square (what has been keyed out). What am I missing, not doing . . should be doing differently . . .any advice is greatly appreciated!

December 21st, 2007, 04:22 PM	#2
David Newman CTO, CineForm Inc. Join Date: Jul 2003 Location: Cardiff-by-the-Sea, California Posts: 8,095	We don't offer playback acceleration with the alpha channel on yet, waiting for more market interest in alpha channel features. However, if you use CTRL+Spacebar to playback it will do a playback preview with the alpha active. __________________ David Newman -- web: www.gopro.com blog: cineform.blogspot.com -- twitter: twitter.com/David_Newman

December 21st, 2007, 04:28 PM	#3
Douglas Figueredo New Boot Join Date: Dec 2007 Location: New York, NY Posts: 15	Thanks! that was a super fast answer! Thanks.

December 21st, 2007, 04:43 PM	#4
Paul Cascio Trustee Join Date: Sep 2004 Location: Bristol, CT (Home of EPSN) Posts: 1,192	That's typical of David/Cineform. Most companies stay away from the front lines, but not David. That's why he gets my respect and my business. __________________ Paul Cascio www.pictureframingschool.com