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green screen performance

Posted: Fri May 30, 2014 18:07
by LakeCity
Hi guys,

I got asked to VJ at an event and to be honest, I don't really know how I should start my preparations.
What is the problem?
The event will take place in a green-screen studio, so I won't actually beam my visuals. I will have to use software (i think?) to replace the green walls with my visuals. I want to use resolume for the effects and mapping. The idea will be very similar to this: http://www.dontwatchthat.tv/channels/just-jam/
I guess I need software and 'something' to connect my visuals with the camera that's filming the studio.
NB: the event will be live-streamed so editing the whole thing later isn't an option

Can someone help me make a start, or give me some advice?

Thankksssss

Re: green screen performance

Posted: Fri May 30, 2014 19:07
by drazkers
Capture with black magic card(HDMI/SDI). Use Chroma Keyer effect for the green, Mix as normal, then output to an external recording device and monitoring screens.

Re: green screen performance

Posted: Sat May 31, 2014 13:47
by LakeCity
Thanks a lot, at least I can start now. But there is a problem, chromakey crashes on my macbook (gpu isn't dedicated) and as far as I know, there isn't a way to make it work.

:(

Re: green screen performance

Posted: Sat Jun 28, 2014 21:11
by LakeCity
Anyone....

*echo*

Please? :cry:

Re: green screen performance

Posted: Mon Jun 30, 2014 22:10
by Joris
There is no way to use the Chroma Key on an Intel GPU. You really need a dedicated card for it.

Re: green screen performance

Posted: Tue Jul 01, 2014 15:44
by Oaktown
Joris, I have a newer MBP with the Intel Iris Pro GPU and I can use the Chroma Key no problems.

Re: green screen performance

Posted: Mon Jul 07, 2014 21:36
by LakeCity
fob67cry: can u tell me which mbp that is exactly? Maybe I'll just sell mine and get a newer mbp. Really need this to work.

Re: green screen performance

Posted: Mon Jul 07, 2014 22:01
by DayVeeJay
Check into PixelConduit. It features keying and you can send video to/from it with Syphon. I wouldnt be suprised if your GPU held you back though.

Re: green screen performance

Posted: Tue Jul 08, 2014 19:02
by Oaktown
I've got the newest version of the 15.4" MBP with the Intel Iris Pro and the NVIDIA GE Force GT 750M (see specs below)

The following youtube video will show you the chroma key effect on my MBP: https://www.youtube.com/watch?v=T_tgKwr ... e=youtu.be
Screen Shot 2014-07-08 at 10.40.56 AM.png
Screen Shot 2014-07-08 at 10.42.13 AM.png
Screen Shot 2014-07-08 at 10.42.37 AM.png

Re: green screen performance

Posted: Thu Jul 10, 2014 12:24
by LakeCity
thank you so much!