copperbar
nounEtymology From copper + bar, after the "copper" (coprocessor) component of the Commodore Amiga chipset.
1
Computing, Demoscene, Engineering, Lifestyle, Mathematics, Natural sciences, Physical sciences, Sciences An animated horizontal bar of colour that extends into the overscan area of the display.
- There a^([sic]) quite a lot of effects you can get with horz.retraces, eg a textmode copperbar (change color #0 with every scanline)1996, WolfMan^iNSaNiTY, “Which scanline???”, 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.1998, Paul-Jan Pauptit, “Raster trix are a problem nowadays.”, in comp.sys.ibm.pc.demos (Usenet):
1 more example
- 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...2000, Lando, “looking for software”, in alt.amiga.demos (Usenet):