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- Path: www.cybercity.dk!usenet
- From: ccc6004@vip.cybercity.dk (Hans Henrik Happe)
- Newsgroups: comp.sys.amiga.programmer
- Subject: Re: doubling pixels horizontally
- Date: 11 Feb 1996 22:44:31 GMT
- Organization: CyberCity of Denmark
- Message-ID: <729.6615T699T2129@vip.cybercity.dk>
- References: <4f4ibc$gl9@news.cs.tu-berlin.de> <591.6610T1165T2102@login.eunet.no>
- <1045.6611T753T2256@vip.cybercity.dk> <695.6611T1193T2676@login.eunet.no>
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- X-Newsreader: THOR 2.22 (Amiga;TCP/IP) *UNREGISTERED*
-
- Patrick Hanevold ( patrick.hanevold@login.eunet.no ) wrote:
-
- >>You can also render only every 2nd pixels, mask out those you don't want
- >>with sprites, and then:
-
- >>loop
- >> 1st frame: show pixel 02468... mask out 13579...
- >> 2nd frame: show pixel 13579... mask out 02468...
- >> jump loop
-
- >>In the 2nd frame you shift (scroll) the bitplanes 1 to the right.
- >>This looks allmost as the real double pixels (Gives very little flicker) and
- >>you only have to write half as much to the chip mem.
-
- >>This effect can be done using only the copper.
-
- > Yups, but what would you render to that screen?
-
- Everything that you would render to a "normal" 2x1/2x2 screen (rot&zoom, 3D effects...).
-
- Hans Henrik Happe
- Alias Goat / Sumpen
-
-