Path: utzoo!utgpu!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!rutgers!gatech!mcnc!decvax!savax!thompson From: thompson@savax.UUCP (thompson mark) Newsgroups: comp.sys.amiga Subject: Re: COMDEX Announcements [TMS340 GSP] Keywords: TI, 34010, 34020, FAST, fast, Fast, Real-time. Message-ID: <823@savax.UUCP> Date: 6 Dec 88 16:24:15 GMT References: <13541@oberon.USC.EDU> <7718@well.UUCP> <13603@oberon.USC.EDU> <28@sdcc10.ucsd.EDU> Organization: Sanders Associates Inc., Nashua, NH Lines: 49 In article <28@sdcc10.ucsd.EDU>, cs161agc@sdcc10.ucsd.EDU (John Schultz) writes: > In article <819@savax.UUCP> thompson@savax.UUCP (thompson mark) writes: > >The '20 is certainly a nice improvement over the '10 with some great new > >features and some respectable performance. But if by Real Time you mean > >30Hz update...dream on! A fully loaded top of the line Silicon Graphics > >| Mark Thompson | > > A 30Hz flight simulator, sure. A 30Hz ray-traced animation, uh, > maybe .030Hz. I saw an AT&T board at NCGA crank out about 1 frame > every 3 seconds. They called it real-time. Of course, frame rate I saw it at SIGGRAPH. Very nice! They use someting like 85 of their DSP parts working in parallel. > We're getting 16-30 frames/sec with a standard Amiga in > SpaceSpuds, just using the blitter efficiently and limiting the > animation. It runs at over 45 frames/sec on an 030/020 machine, > never slower than 30 f/s (only 30 frames/sec are displayed). All > this in Stereo 3D. Great job on SpaceSpuds, I love that game. When I said 30Hz was a pipe dream, I should have clarified my criteria. I am referring to doing double buffered animation from a display list by which the render buffer is cleared every 33msec and the image generation is started from scratch. A reasonable looking flight simulator would require about 2000 polygons per/frame (flat shaded). This would seem doable on 100k/s polygon machines but other overhead operations keep you from maintaining 30 Hz. SGI's simulator currently runs around 20Hz. > Look at all the tricks used in Starglider II. Runs very fast, ^^^^^^ Ahhh.. thats what I'm getting at, no tricks allowed. Seems I remember a quote about a '...suitabley rigged demo...' :-) > Maybe not Evans and Sutherland quality... > Yet. ^^^^^^^^^^^^^^^^^^^^ Hope you saw the real time texture mapped automobile simulator they did. Hot stuff. > > John Schultz > Dreaming on... Glad to hear it because dreamers make miracles possible. -------------------------------------------------------------------------- | Mark Thompson | | decvax!savax!thompson Designing high performance graphics | | (603)885-9229 silicon today for a better tomorrow. | --------------------------------------------------------------------------