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- Path: pm0a14.ben.sover.net!user
- From: acii@sover.net (Alan Clayson II)
- Newsgroups: comp.sys.amiga.graphics
- Subject: Re: HELP with converting and importing gfx files
- Date: 19 Feb 1996 21:02:43 GMT
- Organization: Berkshire Sportswear
- Message-ID: <acii-1902961601550001@pm0a14.ben.sover.net>
- References: <1718.6622T844T1951@mclink.it> <Dn0vn3.HsD@csc.liv.ac.uk>
- NNTP-Posting-Host: pm0a14.ben.sover.net
-
- In article <Dn0vn3.HsD@csc.liv.ac.uk>, fish@csc.liv.ac.uk (S.E. Morris) wrote:
-
- >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- ><>
-
- I know nothing about Photoshop, but generally the problem in transferring
- files from the Mac is the resource fork. If you get rid of that they
- should display properly on the Amiga. There must be a simple routine
- around that'll strip the resource fork and retain just the data fork.
-
- I use Emplant's file transfer capability for that purpose.
-
- Alan
-
- --
- ******** Alan ClaysonII *********** acii@sover.net
-