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Originally Posted by ebenupton
Good if your normal flux is implementing a copper fade every scanline
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This is the main idea (or at least every few lines as it is the minimal blitting).
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bad if it's waiting to reset bitplane pointers on display memory wrap.
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I don't seem to have read anything about the bitplane reset on display memory wrap, which by the way only serves in vertical scroll case (or 8-way scroll), and in many cases can be avoided.
For every problem its solution
In this thread two problems have been mainly raised: manage the overcoming of the next vertical blank and manage a copper line gradient with the copper at the same time with blitter queue.