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Old 03 June 2013, 17:53   #2
hooverphonique
ex. demoscener "Bigmama"

 
Join Date: Jun 2012
Location: Fyn / Denmark
Posts: 1,041
if the colors set by the copper also need to shift/scroll along with the bitmap, you need to move them around as well, which will be almost like generating a new copper list each frame.

with regards to the bitplane pointers, writing the modulos on each scanline and then updating those instead might save some (presuming your bitplanes are below 32k each).
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