I just caught most of Disney's The Black Hole on TCM, which is the first time I've seen the film in many, many years. And I was really impressed by just how superb (and pervasive) the effects were for the time, and how well much of the FX work holds up even today. I've been looking around the Web trying to find more information about "The Making Of" the special effects, but there are only dribs and drabs available at Wikipedia, IMDb, and the odd interview with assorted Ellenshaws (Peter Ellenshaw came out of retirement to serve as production designer and FX supervisor, and his son Harrison was a unit director on the FX).
I'm wondering if anyone here can provide some more detailed info on the creation of TBH's effects. I know we have a couple of posters here who have worked for genre/FX-type magazines, so I'm hoping they can provide some insights.
Mainly I'm curious about the compositing process used. I seem to recall reading once (in a library book or magazine, not online) that this film (or some major Disney film, and I can't imagine what it could be if not this one) used an unusual but intriguing matte technique that, instead of a bluescreen, used sodium-vapor light as the color key. I think it also involved some special lens that interacted with the sodium light in a way that helped create the matte, but it had that property by accident and nobody had ever managed to make another lens like it. Something like that. I don't quite remember if that was really for this film or not.
But it didn't look to me like the mattes were done via bluescreen. There was a bit of a halo around the characters' heads when they were matted against the outside vista of the Cygnus, the starscape, and the black hole, but it looked softer and subtler than a bluescreen matte line and had a slightly greenish tinge. So I'm curious how it was done.
The matte work was really very good in this film. I was particularly impressed by a shot where the camera dollied right-to-left across the banquet table with the window to space in the background, and it revealed more and more of the outside vista of ship, hole, and stars. It even seemed like there was a bit of a perspective shift in the background as the camera moved, but maybe I just imagined it.
Meanwhile, on another subject: was that really Slim Pickens as the voice of B.O.B. as Wikipedia and IMDb say? Because I could've sworn it was Pat Buttram. And since the voice performers went uncredited, I'm wondering if someone made an incorrect guess about who it was.
I'm wondering if anyone here can provide some more detailed info on the creation of TBH's effects. I know we have a couple of posters here who have worked for genre/FX-type magazines, so I'm hoping they can provide some insights.
Mainly I'm curious about the compositing process used. I seem to recall reading once (in a library book or magazine, not online) that this film (or some major Disney film, and I can't imagine what it could be if not this one) used an unusual but intriguing matte technique that, instead of a bluescreen, used sodium-vapor light as the color key. I think it also involved some special lens that interacted with the sodium light in a way that helped create the matte, but it had that property by accident and nobody had ever managed to make another lens like it. Something like that. I don't quite remember if that was really for this film or not.
But it didn't look to me like the mattes were done via bluescreen. There was a bit of a halo around the characters' heads when they were matted against the outside vista of the Cygnus, the starscape, and the black hole, but it looked softer and subtler than a bluescreen matte line and had a slightly greenish tinge. So I'm curious how it was done.
The matte work was really very good in this film. I was particularly impressed by a shot where the camera dollied right-to-left across the banquet table with the window to space in the background, and it revealed more and more of the outside vista of ship, hole, and stars. It even seemed like there was a bit of a perspective shift in the background as the camera moved, but maybe I just imagined it.
Meanwhile, on another subject: was that really Slim Pickens as the voice of B.O.B. as Wikipedia and IMDb say? Because I could've sworn it was Pat Buttram. And since the voice performers went uncredited, I'm wondering if someone made an incorrect guess about who it was.
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