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- From: "Jyrki Saarinen" <jsaarinen@kone.fipnet.fi>
- Date: Sun, 18 Feb 96 12:45:14 UT
- Comments: Illegal date header - new date added by quicknews
- X-Original-Date: Sun, 18 Feb 96 12:47:44
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- Subject: Re: Bitfieldinsert?
- Message-ID: <38232461@kone.fipnet.fi>
-
-
- > 4bit chunky version would be, to draw 8 4bit pixel
- >
- > REPEAT 16
- > move.l (a0)+,(a1)+ ;draw 8 pixels
- > ENDR
- >
- > a0 is a pointer in a lighting cube ... Think of it as tmapping a
- > X*1 texture and having all the texture size prescaled so you only
- > have intereg part when steping in the texture.
- > in 8bit its the same but you map only 4 pixels at a time.
-
- Hey, finally a place for doing some c2p pass(es) in the inner
- loop..? Have you done this code, btw?
-
- > But back to bitfield inst, they are nice for <33 pixel wide flat
- > lighted triangles. I think a 25mhz 030 can draw ~70,000 32x16 polygon
- > using bfset.
-
- Yep. Too bad that idea cant be used in something serious.
-
- -- _
- a Stellar programmer _ //
- "Amiga - back for the future" \X/
-