Jump to content


Photo

greenscreens


  • Please log in to reply
2 replies to this topic

#1 dgdoinggood

dgdoinggood

    New

  • Basic Members
  • Pip
  • 4 posts
  • Student

Posted 16 December 2005 - 03:14 AM

How do greenscreens work and can they be done on the cheap? I need a shot of the characters in a hot air balloon.
DG
  • 0

#2 David Mullen ASC

David Mullen ASC
  • Sustaining Members
  • 19769 posts
  • Cinematographer
  • Los Angeles

Posted 16 December 2005 - 03:42 AM

Depends on how wide the shot is. Are the subjects framed head-to-toe (if you could see through the basket)? Waist-up? Chest-up?

Sounds like you need to establish them in the basket, so at least mid-basket up. This might require something as big as a 20'x20' greenscreen, which means renting the 20'x20' greenscreen, a 20'x20' frame, large combo stands with frame holders, rope, lots of sandbags, and a crew that knows how to set it all up. You could shoot outside in sunlight though. You may getaway with a 12'x12' greenscreen if it's more like a waist-up shot.

Outdoors, large frames of cloth like this act like sails, so you need to set it up in fairly windless conditions with a crew that knows about safety rigging.

If you have to shoot it indoors, you also have lighting issues.

Look up "chroma key" online by doing a Google search to understand the principles. Or read this:

http://en.wikipedia....wiki/Chroma_key

Edited by David Mullen, 16 December 2005 - 03:43 AM.

  • 0

#3 dgdoinggood

dgdoinggood

    New

  • Basic Members
  • Pip
  • 4 posts
  • Student

Posted 16 December 2005 - 11:16 AM

Kind of ironic that you answerd David as I just read The Delcaration of Independant Filmmaking. Thanks for the info.
  • 0


The Slider

Opal

Gamma Ray Digital Inc

Ritter Battery

FJS International, LLC

Abel Cine

Glidecam

Aerial Filmworks

Metropolis Post

Broadcast Solutions Inc

Tai Audio

Technodolly

Media Blackout - Custom Cables and AKS

Visual Products

Wooden Camera

Willys Widgets

CineLab

Rig Wheels Passport

rebotnix Technologies

Paralinx LLC

CineTape

Paralinx LLC

rebotnix Technologies

Metropolis Post

Gamma Ray Digital Inc

Tai Audio

CineLab

Media Blackout - Custom Cables and AKS

Glidecam

Opal

FJS International, LLC

Technodolly

Willys Widgets

Ritter Battery

Aerial Filmworks

Broadcast Solutions Inc

The Slider

Visual Products

Wooden Camera

CineTape

Abel Cine

Rig Wheels Passport