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Forums > C64 Coding > badlines without graphics ..
2008-03-31 17:33
Testa
Account closed

Registered: Oct 2004
Posts: 197
badlines without graphics ..

i was playing around with $d011 and i find out when you put #$68 till #$6f at $d011 you get a black screen without graphics but with badlines....

how is this possible and is there a way to change the black color into an other color???

mcd
2008-03-31 18:07
Cruzer

Registered: Dec 2001
Posts: 1048
That's because you turn on bitmap and extended background color mode at the same time, which the VIC chip decideds makes no sense, and therefore goes into blackout. This is actually an easy way of making black lines at arbitrary places, e.g. to fade in a FLI pic. I'm pretty sure you can't change the black color.
2008-03-31 18:10
JackAsser

Registered: Jun 2002
Posts: 2014
Quote: That's because you turn on bitmap and extended background color mode at the same time, which the VIC chip decideds makes no sense, and therefore goes into blackout. This is actually an easy way of making black lines at arbitrary places, e.g. to fade in a FLI pic. I'm pretty sure you can't change the black color.


You can always place sprites behind the black graphics to see it.
2008-03-31 18:17
Testa
Account closed

Registered: Oct 2004
Posts: 197
very nice.. it is almost a dream coming true... i was looking for a way to create 'black lines' for my xy sideborder swing/scroll and here it is.... very nice...

putting sprites behind the black graphics shows indeed the invisible graphics....

cool!


2008-03-31 18:47
Ninja

Registered: Jan 2002
Posts: 411
VIC Article [english] may have more neat surprises for you :)
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