Comments

musicvid10 wrote on 10/31/2011, 12:07 AM
Rule # 1 for Chroma Key: The lighting must be absolutely even in all parts of the frame.
Rule # 2 for Chroma Key: When in doubt, refer to rule #1.
D7K wrote on 10/31/2011, 2:33 AM
have you viewed the mask and seen what you can adjust to pure white? that will tell you how good your green screen is.
Roberto65 wrote on 10/31/2011, 2:35 AM
Hello Musicvid,

can you suggest some weblink where to find some tutorial about how to position the lights, what light types, number etc. and other eventual tips ?
snow246wolf wrote on 10/31/2011, 11:19 AM
MusicVid - Lighting is not an issue here. It almost seems as if the green screen clip is not as high as the background picture that I am using. Unless I am overlooking something pretty simple (which is possible), I've tried adjusting the height, width, etc. in both clips, but no success.
snow246wolf wrote on 10/31/2011, 11:21 AM
D7K - Yes, I've looked at that, but will try again. I may just have to re-shoot my green screen shot although everything was within the frame of the camera when I did the shot.
snow246wolf wrote on 10/31/2011, 11:24 AM
Roberto 65 - you will find some great tutorials on YouTube. That's where I found my information on setting up lights and then just fooling around with the setup yourself.
musicvid10 wrote on 11/1/2011, 12:32 AM
Roberto,
Basic lighting procedure is the same as for stills. Spot-meter and adjust lighting until it is the same over the whole background. The more accurate you are, the less trouble you will have in post.

snow,
Your main video track and replacement background must be in the same aspect. If not, use Event Pan/Crop to "Match Output Aspect" which will crop to fill, or unselect the Event "Maintain Aspect Ratio" switch, which will stretch to fill.
OhMyGosh wrote on 11/1/2011, 10:14 AM
No head or legs? Sounds like you don't have your project properties set to your green screen footage. Have you used the 'Match Media Settings' button first? Then do as Musicvid said and match the background image to the output aspect ratio. Cin
Roberto65 wrote on 11/1/2011, 1:36 PM
Thanks Musicvid.
Now I have figured out the real problem in my home: the available space... to set up the green screen + lights + cameras at a proper distance... I would need a 10mtx10mt room.... :-|

snow246wolf wrote on 11/1/2011, 11:49 PM
Musicvid and Ohmygosh - will try it - thanks.
snow246wolf wrote on 11/7/2011, 4:34 PM
Musicvid and OhMyGosh - chaged the settings and it worked .... thanks.