hamei wrote:
In SGI-land, video and graphics are two separate things. Graphics is display on a monitor, video is .. well, video :)
An interesting bit of history re: SGI+video:
At the same time, Silicon Graphics did not have a real recordable video output board yet. DiaQuest proposed a stand-alone product containing a rack mount PC and Truevision Targa board. DiaQuest worked closely with SGI and WaveFront (a leading 3D graphics company along with competitors Alias and SoftImage) to market rendering output devices to VTR.
DiaQuest provided a crucial element for SGI by developing frame-accurate products for real-time capture and layoff, both standard def and HD. DiaQuest worked closely with the SGI engineering team to develop the tight timing standards needed to guarantee absolute frame accuracy.
DiaQuest ported their Animaq editing product to Irix for the SGI platform to support the expanding animation market.
I wonder what timeframe that was? Before the VideoFramer, possibly? I have a Mac DiaQuest board, it was designed for an interesting use case. When recording to tape, you have to synchronize the video out exactly to the tape movement. The workstation's graphics and the VTR both have to be genlocked to the same master, obviously, but you also need to begin the frame at the time the recorder expects it. So there are 10 different signal cables that go to the various video decks to make them all sync up to do on-line editing. The SGI boards like the Galileo don't have anything quite as sophisticated, so either they just didn't support on-line editing, or there was some other option that added it.