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3-D and green screen


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#1 Jeremy M Lundborg

Jeremy M Lundborg
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Posted 22 August 2010 - 07:14 PM

I have very little experience in 3-D photography yet am being thrust into the middle of a project with that intention.

Some of the shots are against a green screen, nothing complicated in terms of movement, but my concern is with the overall composite.

This is surely fodder for a meeting with the vfx department, but I thought I would ask before hand if anyone here had any experience and could offer any advice or pitfalls to watch out for on set.

In my estimation it would work best with measured convergence and compatible i/o for both shots, according to the intended depth of the final shot. My concern is the practical effect of compositing a depth oriented plate into a depth oriented shot.


Thanks.

Edited by Jeremy M Lundborg, 22 August 2010 - 07:15 PM.

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#2 Keith Mottram

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Posted 23 August 2010 - 08:10 AM

I have very little experience in 3-D photography yet am being thrust into the middle of a project with that intention.

Some of the shots are against a green screen, nothing complicated in terms of movement, but my concern is with the overall composite.

This is surely fodder for a meeting with the vfx department, but I thought I would ask before hand if anyone here had any experience and could offer any advice or pitfalls to watch out for on set.

In my estimation it would work best with measured convergence and compatible i/o for both shots, according to the intended depth of the final shot. My concern is the practical effect of compositing a depth oriented plate into a depth oriented shot.


Thanks.


Green screen compositing is not disimilar from 2d, basically if your plates are shot correctly with the same setup then they will comp well, if not then no, as far as convergence goes shoot the same and any post convergence will sort it self out. however i do recommend getting your fx crew to take a look at ocula on nuke as it will help match up any discrepencies in the keying (and misalignment/ geometrics and color shift) which can be a major problem in 3d.
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rebotnix Technologies

Willys Widgets

Rig Wheels Passport

Ritter Battery

Wooden Camera

Gamma Ray Digital Inc

Media Blackout - Custom Cables and AKS

Tai Audio

Technodolly

New Pro Video - New and Used Equipment

CineLab

Visual Products

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Broadcast Solutions Inc

Aerial Filmworks

FJS International, LLC

Paralinx LLC

CineTape

Glidecam