Does anyone think that attempting to film a person with blue
screen background underwater(in a pool) would have many pitfalls
to overcome ie : bubbles, mimicking water distortions on the
matted background layer.
Or might it be just fine technically and even have an interesting
Anybody have some idea's or experience with this?
Does anyone think that attempting
to film a person with blue screen .background underwater(in
Did an ocean effect this way once. Found good footage with
streaks of sunlight moving through the water.
After watching the footage, I wanted to imitate it.
For lighting we used a shallow acrylic tank above the talent
and shown light through it and gelled it accordingly to create
the same effect and it worked quite well. I was worried about
the water wavy effect but in the end the
waves from my tank made the person look like they were in
I think it's all about symmetry, that is unless you want it
to look off kilter.
Producer, Director, Creative Director, Cinematographer
HellGate Pictures, Inc.
BlueSky, LLC www.film-and-video.com
Brent Marrale wrote :
>Anybody have some idea's or experience with this?
I have a vague memory that JAWS 3D did some of this, I think
they may have done some effects as Ultimatte composites at
SD Video resolution. I know there was an AC article about
it, way back when. '83 maybe??
Steven Bradford DP
I did a shoot where we had to add a background to a guy swimming
in a pool. We discussed doing it as a blue screen, but it
ended up as a luminance key. My part was simple - shoot the
guy swimming against the wall of the pool. It was top light
with no direct light on the wall behind him. I was not directly
involved with the post.
There's a purpose built facility for this just down the road
a few miles.
Basically it's the same as any BS, use underwater Kino's for
the screen and try and keep any caustics off it, they're the
ripples you get in the lighting caused by the water, they
cause havoc with keyers.
Otherwise it's a fairly common and easy thing to do.
One should have a look at the Test footage on the NEW Procomp
CD, which has footage of ghost model, dressed in translucent
reflective material, flowing slowly round in this tank. The
blue screen bounce is drastically cut down as a result. No
problem with the background matte's either.
We did a commercial in which a girl swims around a house.
We shot the background plates in the house then shot her against
blue screen in a pool. She was wearing a white T-shirt and
it was very difficult to (in fact we were unable to totally)
remove blue tinges from the white shirt. This was probably
due more to the water than to reflection off the blue screen.
There was a BMW commercial, that we used as reference, in
which a woman dived into and swam around a pool. There is
a BMW driving along the bottom of the pool and seemingly no
water in the pool. She is wearing a black swimsuit but overall
it looks fantastic, very little affect on her face or body
from the water and no blue tinge.