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- Newsgroups: comp.sys.apple2
- Path: sparky!uunet!paladin.american.edu!gatech!destroyer!fmsrl7!lynx.unm.edu!umn.edu!student.tc.umn.edu!adri0001
- From: adri0001@student.tc.umn.edu (Wouldn't you like to know)
- Subject: Super Hi Res Stuff
- Message-ID: <C173t9.Lt3@news2.cis.umn.edu>
- Sender: news@news2.cis.umn.edu (Usenet News Administration)
- Nntp-Posting-Host: student.tc.umn.edu
- Organization: University of Minnesota
- Date: Thu, 21 Jan 1993 08:34:19 GMT
- Lines: 37
-
-
- Hey folks...been quite a while since I've posted here. I have been really busy
- with things and well, the rest is history. I've just set myself up here with
- TRN and other wonderful little things, but I need to compile ELM and TIN on my
- NeXT at school which is proving to be somewhat difficult.
-
- So, after that late-nite splub, I guess I'll get to my question. I'm working
- with some animation now...finally! I was having problems with a phantom
- bug before. I needed to clear out the super-hi-res screen before I did
- anything to it...the problem was that I was clearing out the SHR screen and
- then flipping the SHR screen on...this was causing ghost pixels to get lit up
- at the bottom of the screen but ONLY when I ran the program for the first time
- after launching into GNO. I go to GNO from Prosel, run my program, and the
- first time I do, the screen is a little messed on the bottom...but every
- subsequent run after that works fine.
-
- This continued until someone told me that I needed to flip the SHR screen on
- first...then clear it. I am doing that now and it's working. The only problem
- is that you can see what was on the SHR screen before and that makes for a
- rough transition. Just a split-second before the SHR screen comes up, it's
- there and it's annoying. Can someone help me come up with a way to blank the
- screen without having to deal with this problem? I want to blank the screen
- then flip the SHR screen on...that way, I'm switching to a blank screen and
- not one with stuff already on it...smooth.
-
- I've done this checking for VBL, and that also didn't work...I've tried a lot
- of things, so let's hope I hear something new here.
-
- Amrit
-
- Hey Paul :)
-
- --
- -=-=-= Amrit Chauhan --- Conciousness can be Demystified -=-=-=-
- -=-=-= achauhan@math.macalstr.edu - #AppleIIgs forever -=-=-=-
- -=-=-= Conciousness depends on its associated concepts. =-=-=-
- -=-=-= Cartesian Duelism is giving up on science. -->--<@ =-=-=-
-