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- Newsgroups: comp.sys.amiga.graphics
- Path: yama.mcc.ac.uk!liv!lucs!news
- From: fish@csc.liv.ac.uk (S.E. Morris)
- Subject: Re: HELP with converting and importing gfx files
- Sender: news@csc.liv.ac.uk (News Eater)
- Message-ID: <Dn0vn3.HsD@csc.liv.ac.uk>
- In-Reply-To: <1718.6622T844T1951@mclink.it>
- Date: Mon, 19 Feb 1996 12:21:03 GMT
- To: mc3220@mclink.it (mc3220)
- References: <1718.6622T844T1951@mclink.it>
- Nntp-Posting-Host: fish@jordan.csc.liv.ac.uk
- Organization: Computer Science, University of Liverpool, UK
- X-Newsreader: knews 0.9.4
-
- In article <1718.6622T844T1951@mclink.it>,
- mc3220@mclink.it (mc3220) writes:
- >Hi all!
- >I'm trying to transfer some files from a Macintosh to my Amiga. Actually I'm
- >rendering an animation and generating PICT frames: I then convert them into
- >IFF files (using Adobe Photoshop's plug-in module) or JPEG at high-quality
- >setting (same as above). All the files are transferred on a Syquest270 and
- >brought over to my 3000 to be assembled and viewed on my Picasso board.
- >
- >The problem is that many (or all) of the files are garbled after the
- >conversion and the Amiga can't properly display them. I have tried to use
- >both an MS-DOS formatted cartridge (using PC Exchange on the Mac side and
- >CrossDOS on the other) and a MAC formatted one (using AmiCDFileSystem which
- >can read MAC-formatted CD's and HD's) but the result is the same. Also using
- >GraphicConverter and different conversion utilities on the Mac and on
- >the Amiga didn't help much, so I suspect the fault lies in the disk format and
- >in particular format used by the Mac (the resource fork is not properly
- >decoded, I guess...)
- >
- >I'm sure it's not a problem with memory or machines (the Mac is a PPC
- >8100/80AV with 56 MB RAM, the Amiga has only 8MB, but this should be enough to
- >convert and display a single frame). I tried to exchange a few frames using
- >AccessPC on the Mac (instead of PC Exchange) with floppy disks and it seems to
- >work, even if this is of no practical use.
- >
- >Can anyone help me?
- >
- I used to do something similar not too long ago and ran into similar
- problems. The Mac would bork at certain IFF file, and files taken over
- from the Mac to the Amiga would sometimes fail to load.
-
- Eventually I came to the conclusion that it was the Mac (or rather
- Photoshop) causing the problems. Apparantly Photoshops file import/
- export options are a load of crap. It writes out incomplete or
- incorrect IFF files - I suspect this occures when you save an image
- which is not in a standard Amiga screen dimensions (ie. anything
- other than 320x256, 640x512, etc. etc.)
-
- I also had problems with the JPEG option as well. Apparantly Photoshop's
- JPEG files are not too hot either. Infact the only file format I think
- Photoshop supports completely is TIFF (based upon a fair bit of trail and
- error testing!! :-> )
-
- This is not just Photoshop's fault. I have had trouble using JPEG with
- Corel on the PC, and even DPaint on the PC occasionally refused to load
- Amiga generated IFFs. Indeed, the only system which routinely swallows
- the graphics files I throw at it without complaint is the Amiga. But
- I think it's Datatyping system gives it an unfair advantage over the PC
- and Mac. :->
-
- If you want my advice, try saving the images as TIFF and then get
- a decent TIFF reader/datatype for the Amiga. If TIFF fails then you
- could try PCX, BMP or GIF - although none of these are ideal for
- transfering 24bit data. (Does GIF even support 24bit???)
-
- Hope you find a solution,
- -FISH- ><>
-
-
-