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- From: leo@dcs.warwick.ac.uk (Leo Hendry)
- Subject: Re: A1200 versus Falcon 030 once again (FAQ?)
- Message-ID: <1993Jan28.084838.15709@dcs.warwick.ac.uk>
- Sender: news@dcs.warwick.ac.uk (Network News)
- Nntp-Posting-Host: granite
- Organization: Department of Computer Science, Warwick University, England
- References: <1jooboINN28i@escargot.xx.rmit.OZ.AU> <C1GrMM.C2C@sunlab1.bath.ac.uk> <1993Jan26.222138.21584@infodev.cam.ac.uk>
- Date: Thu, 28 Jan 1993 08:48:38 GMT
- Lines: 33
-
- In article <1993Jan26.222138.21584@infodev.cam.ac.uk> cpb1001@cl.cam.ac.uk (C.P. Brown) writes:
- >In article <C1GrMM.C2C@sunlab1.bath.ac.uk>, mapmh@sunlab1.bath.ac.uk (Mark Hagger) writes:
- >|> Depends what you mean by most? Granted anything that was sprite based
- >|> run a damn site faster on an Amiga, but anything that was processor
- >|> intensive like any 3d simulations or other such interesting games
- > ^^^^^^^^^^^^^^
- >
- >Not strictly true, the custom chips can be used to draw polygons in hardware,
- >much faster than the main processor can. Most of the 3D stuff that ran slowly was
- >ported ST stuff, which wasn't reprogrammed to take advantage of the graphics
- >processor :-)
- >
- >Chris Brown
-
- I have heard programmers say more than once that it is just too much hassle
- using some of the Amiga's hardware (and naturally, too slow when used through
- the OS, which is the only compatable way), and they much prefered a machine
- with a processor fast enough to handle things itself (ie STs).
- I was looking through an Amiga manual some time back now, and I from what I
- remember, all the hardware can do is draw horizontal lines. Now while this
- is exactly what is needed by most polygon drawing routines, unless the polygon
- is very large the setting up of the coprocessor takes longer than embeded
- 68000 code would to draw the horizontal lines. If you access the hardware
- through the OS (Which is now the only way because CBM no longer document the
- new chipsets at a hardware level), then you would have to have a gigantic
- polygon for it to be faster using some coprocessor or other.
- Sprites are a different matter though - from what I remember they are
- overlaid on the screen memory by the video circitry with out taking any
- processor time or changing the screen memory. As has been said this makes the
- Amiga far, far better than the ST for those moronic Super Mario-type games
- that 5 year olds seem to like to much.
-
- - Leo
-