01-09-2015, 01:15 AM
(01-08-2015, 11:12 AM)rama Wrote: Right. Whatever you actually want to do
The whole interlacing topic is rather annoying though. It was needed for "HD" back in the day
(480 lines) but on any current display technology, it sucks.
You get ugly artifacts or flicker, there's a huge processing delay, that blur, etc.
Half the PS2 library suffers from some kind of interlacing related issue.
is it really about HD? i thought they conserved the framebuffer memory. rendering half frames. with a scanline projection matrix trick against the flicker. you could just dump that precise half frames and stretch them. simply double the lines. doesn't even need even and odd. it should deflicker it automaticly cause it's always 2 lines. sure... not the sharpest picture then.
in dmc i just y-double the internal framebuffer it rendered to. i had flickering then in progreesive "rendering" (that projection issue). there you'd need to count even or odd whether add a "scanline offset" or not at the output. upsaling would mean to add a scaled like 4xx-scanlines. i didn't do it back then tho. *shrugs*