Anaglyph 3D (with the red/cyan, or lower-quality red/blue filters) has been around since the 1800s (3D films predate talkies by decades), but was much more of a gimmick and wasn’t used for big-budget serious films as it ruined the colour quality, mainly being used for 1950s B movies. There were a bunch of other methods used between the 50s and 2010-ish like regular Polaroid filters (which did stop working when you tilted your head like in the comic and were a hassle for other reasons) and active shutter (which relied on expensive and heavy glasses with electronics in). The newer kind that relies on circular polarisation became available since the turn of the millennium, with Avatar in 2009 being the film that made most cinemas buy new projectors. Those glasses made 3D films viable as the standard for a few years, before people generally decided that most of the time, being 3D didn’t add enough to the viewing experience to be worth paying extra for and studios decided it wasn’t elevating their art enough to justify the extra production costs if people weren’t going to pay a premium.
When I said the beginning of 3D movies, I meant the Avatar Era. And the ones I usually see are normal polarised, not circular. And to me it’s still a stupid gimmick thst adds nothing positive to the experience of watching a movie.
Unless your local cinema got a good deal on a projector from a 1980s theme park 3D movie, it’s definitely using circularly polarised filters. If you’ve tried tests like putting the lenses from two pairs of the glasses or one pair of the glasses and one pair of regular polaroid sunglasses next to each other and rotating them, that’ll still make them get brighter and dimmer like with linear polarised filters, as passing through the filter can change the polarisation to elliptical, and that means it’ll be affected by rotation when it gets to the second filter.
people generally decided that most of the time, being 3D didn’t add enough to the viewing experience to be worth paying extra
Because most of them were just 2D movies converted to 3D in post. Doing that tends to look like crap. The ones filmed for 3D, like Avatar, looked amazing, but studios didn’t want to wait for the next wave of films and wanted 3D now with what they already had.
I don’t know what modern means here, but the cinemas I go to still use the same glasses as from the beginning of 3D movies.
Anaglyph 3D (with the red/cyan, or lower-quality red/blue filters) has been around since the 1800s (3D films predate talkies by decades), but was much more of a gimmick and wasn’t used for big-budget serious films as it ruined the colour quality, mainly being used for 1950s B movies. There were a bunch of other methods used between the 50s and 2010-ish like regular Polaroid filters (which did stop working when you tilted your head like in the comic and were a hassle for other reasons) and active shutter (which relied on expensive and heavy glasses with electronics in). The newer kind that relies on circular polarisation became available since the turn of the millennium, with Avatar in 2009 being the film that made most cinemas buy new projectors. Those glasses made 3D films viable as the standard for a few years, before people generally decided that most of the time, being 3D didn’t add enough to the viewing experience to be worth paying extra for and studios decided it wasn’t elevating their art enough to justify the extra production costs if people weren’t going to pay a premium.
When I said the beginning of 3D movies, I meant the Avatar Era. And the ones I usually see are normal polarised, not circular. And to me it’s still a stupid gimmick thst adds nothing positive to the experience of watching a movie.
Unless your local cinema got a good deal on a projector from a 1980s theme park 3D movie, it’s definitely using circularly polarised filters. If you’ve tried tests like putting the lenses from two pairs of the glasses or one pair of the glasses and one pair of regular polaroid sunglasses next to each other and rotating them, that’ll still make them get brighter and dimmer like with linear polarised filters, as passing through the filter can change the polarisation to elliptical, and that means it’ll be affected by rotation when it gets to the second filter.
Because most of them were just 2D movies converted to 3D in post. Doing that tends to look like crap. The ones filmed for 3D, like Avatar, looked amazing, but studios didn’t want to wait for the next wave of films and wanted 3D now with what they already had.