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English
Etymology
From copper + bar, after the "copper" (coprocessor) component of the Commodore Amiga chipset.
Noun
copperbar (plural copperbars)
- (demoscene) An animated horizontal bar of colour that extends into the overscan area of the display.
1996, WolfMan^iNSaNiTY, “Which scanline???”, in comp.sys.ibm.pc.demos (Usenet):There a quite a lot of effects you can get with horz.retraces, eg a textmode copperbar (change color #0 with every scanline)
1998, Paul-Jan Pauptit, “Raster trix are a problem nowadays.”, in comp.sys.ibm.pc.demos (Usenet):Although most cards still support screen-tweaking, you can just forget about copperbars (writing within horizontal retrace fuks up the screen BADLY) and other effex. Same goes for changing the font.
2000, Lando, “looking for software”, in alt.amiga.demos (Usenet):There was also the (really pretty famous) RSI Demomaker that let u make up your own intros/demos from a load of stock effects (bobs, starfields, copperbars, scrollers etc).. havent been able to find that tho...