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- From: "Jyrki Saarinen" <jsaarinen@kone.fipnet.fi>
- Date: Sat, 13 Jan 96 15:38:06 UT
- Comments: Illegal date header - new date added by quicknews
- X-Original-Date: Sat, 13 Jan 96 15:51:50
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- Subject: Re: TMapping again!
- Message-ID: <38232018@kone.fipnet.fi>
-
-
- > Yes, good old subdivision, currently at 16 pixels resolution,
- > always horizontal. I've had a 32 pixel version and
- > vertical/horizontal span drawers for some time, but trashed
- > it for the sake of simplicity. I'm quite happy with it now,
- > but "the last word has not been spoken yet" :-)
-
- Yep. Do you use the triangle feature that horizontal linear
- steps are constant, so they have to calculated just once?
- (u/z, v/z and 1/z)
-
- Do you use fixed-point? When doing 1/z quite many bits
- must be used for fraction. Also, using divs.w for
- the two divides between every 16 pixel would give
- a little speedup compared to divs.l
-
- -- _
- a Stellar programmer _ //
- "Amiga - back for the future" \X/
-