#BRL CAD MECH SUIT TEMPLATE MOVIE#
Unscaled, the playback rate for the 160*120 movie was over 100 fps.
_large.jpg "brl cad mech suit template")
I'd try my tests with QuickTime 1.0, but I don't think it's entirely compatible with my Centris and System 7.1. Clearly, the poster who observed poor performance on scaled playback was seeing QuickTime 1.0 in action, not 1.5. This time the playback speed was over 60 fps. I modified my speed test program to allow the specification of optional scaling factors, and tried playing back the 160*120 movie scaled to 320*240 size. Obviously the 230MB internal hard disk (also a Quantum) is a significant contributor to the speed of playback. This time the playback rate was only about 35 frames per second. Just for fun, I copied the 320*240 movie to my external hard disk (a Quantum LP105S), and ran it from there. That's right, I was getting a much higher result than with that first short test movie. I then ran the 320*240 movie through the same "Raw Speed Test" program I used for the results I'd been reporting earlier. I used the default "2.00" quality setting in Premiere 2.0.1, and specified a key frame every ten frames. I created two versions of the movie: one scaled to 320*240 resolution, the other at 160*120 resolution. I then imported it into Premiere and put it through the Compact Video compressor, keeping the 5 fps frame rate. I captured the raw footage at a resolution of 384*288 pixels with the Spigot card in my Centris 650 (quarter-size resolution from a PAL source). To increase the differences between frames, I digitized it at onlyĕ frames per second, to give a total of 171 frames. I figured this would give a reasonable amount of movement between frames. Specifically, I digitized a portion of about 30 seconds' duration, zooming in on the rotating space station. About fifteen minutes into the movie, there's a sequence where the Earth shuttle is approaching the space station.
#BRL CAD MECH SUIT TEMPLATE TV#
I pulled out a copy of "2001: A Space Odyssey" that I had recorded off TV a while back. I decided something a little longer would give closer to real-world results (for better or for worse). The movie I had been using only had 18 frames in it (it was a version of the very first movie I created with the Compact Video compressor). First of all, I felt that my original speed test was perhaps less than realistic. OK, with all the discussion about observed playback speeds with QuickTime, the effects of scaling and so on, I thought I'd do some more tests.
0 kommentar(er)
