i do 3d since 30 years and i had in the past many double stack
. to do 3d very early digital.
now i have a barco cinema dlp and i use a very good computer to feed
3d content(most still pictures in 3d that i do myself)
and a cinema server was also there to feed some some 3d content i can get.
i am very happy that 3d becomes so popular and this time 3d comes and
will never go.
i wonder why no one talk about the 2 problems this 3d content will have
in the beginning.
1. the 3:2 pulldown motion bug.
all 3d film content are record at 2x 24p(24 frames left eye 24 frame right eye).
this 48p signal at 1920x1080 are at the blue ray 3d disc.
in cinemas they display this lrlrlrlr 48 p signal with the " trippleflash"
that means every 24 left frame are displayed 3 times so you got
72hz per eye and 144 hz for both left and right eye per secound.
thats motion bug free and flicker fee.
so most of the early consumer displays like the panasonic 3d plasma
can not do 144 hz at full hd as there was a bandwith problem.
panasonic and othere will offer 2 things but both have problems.
they are output a 2x 60 hz 3d signal.
problem here as the source is 2x 24p that you will have again a motion
bug call 3:2 Puldown as ther is no way to bring 24p to 60 without
any visible jerky.
a bug that we had before bd was there with 24p.
seams us people as they get used in the past are not so sensitive but europe people are very sensitiv about it as we never have it in our old pal tv system.
problem this bug will be even worse in 3d compare to 2d as it
will be more visible!
as panasonic 3d plasmas cant do the 2x 72 hz and they know about the motion bug i report they offer a "doubleflash" only that means the 24 left frame are only double to 48p/sec. and same for the right frame
so you got 96 hz means 48 per eye.
in this case you will not see this 3:2 pulldown motion bug
BUT than you will see flicker in bright parts of the picture and that can look
also very bad.
some of the upcomming 3d lcds are offering this 2x 72 hz that have
no motion bug and no flicker but all 3d lcds are suffering more or less
form ghosthing as todays lcd are not fast enough as the return time
is not enough.
its a good start for 3d blue ray as they output 2x 24p the same as they
record this 3d films but its a bad start for companys that will have
displays soon on the market that cant display it flicker free or
motion bug free 3d films as this content was record.
i hear the nex gen. panasonic 3d plasmas can do 2x 72 hz flicker AND
motion bug free.
may we should add here at this forum a list of displays and pr
that can do 3d at 2x 72 hz motion bug free and filcker free.