Super Hi Res Stuff

[adri0001@student.tc.umn.edu (Wouldn't you like to know)]

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.         =-=-=-
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