Matakuliah
Tahun
: U0574 / DIGITAL COMPOSITING I
: 2008
Keying and Green screen essential
Pertemuan 06
Keying and Green screen essential
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Mattes from luminance or chroma keying
Use of flat background with particular color
Blue screen – Avoid any blue colors in foreground
Green screen – avoid any green colors in
foreground
3
Bina Nusantara
Keying and Green screen essential
• A good green/blue screen is a good lighting as well
• Make sure the background is flat
• Foreground can be distinguish from the
background
4
Bina Nusantara
Keying and Green screen essential
• A good green/blue screen is a good lighting as well
• Make sure the background is flat
• Foreground can be distinguish from the
background
5
Bina Nusantara
Keying and Green screen essential
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The point is the lighting
Basic lighting is needed
3 point lights
Key light, Fill light, Back light (sometimes additional
backlight is needed)
• The backlight has a purpose to make the object
standout
• Tracker points if needed
6
Bina Nusantara
Keying and Green screen essential
• Remove the green/blue screen
• Pay attention for the hair area
• Use garbage masking for reduce your chroma area
7
Bina Nusantara
Keying and Green screen essential
• Used for special effects purpose
• News purpose
• Matte painting
8
Bina Nusantara