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The Original Chip Set (OCS) of the Commodore Amiga features a 12-bit RGB, 4,096-color palette.As the Amiga Copper programmable graphics coprocessor is capable of changing color lookup table entries on the fly during display, in practice the number of distinct colors visible on-screen may exceed static color lookup table sizes documented here.
Amiga Chip Set. The Original Chip Set (OCS) is a chipset used in the earliest Commodore Amiga computers and defined the Amiga's graphics and sound capabilities. It was succeeded by the slightly improved Enhanced Chip Set (ECS) and the greatly improved Advanced Graphics Architecture (AGA).
Amiga Advanced Graphics Architecture (AGA) is the third-generation Amiga graphic chipset, first used in the Amiga 4000 in 1992. Before release AGA was codenamed Pandora by Commodore International. AGA was originally called AA for Advanced Architecture in the United States. The name was later changed to AGA for the European market to reflect ...
Resolutions vary from 320×200 (up to 32 colors) to 640×400 (up to 16 colors) for NTSC (704×484 overscan) and 320×256 to 640×512 for PAL (704×576 overscan.) [16] The system uses planar graphics, with up to five bitplanes (four in high resolution) allowing 2-, 4-, 8-, 16-, and 32-color screens, from a palette of 4096 colors. Two special ...
The number of color registers is a hardware limitation of pre-AGA chipsets in Amiga computers. Some contemporary games ( Fusion , [ 9 ] Defender of the Crown , [ 10 ] Agony , [ 11 ] Lotus II , [ 12 ] or Unreal [ 13 ] ) and animations ( HalfBrite Hill [ 4 ] ) use EHB mode as a hardware-assisted means to display shadows or silhouettes.
Fragment of full-color image (left) vs Amiga HAM (right) Hold-And-Modify, [1] [2] [3] usually abbreviated as HAM, [4] is a display mode of the Amiga computer. [5] It uses a highly unusual technique to express the color of pixels, allowing many more colors to appear on screen than would otherwise be possible.
AGA increases the color palette from 4096 colors to 16.8 million colors with up to 256 on-screen colors normally, and an improved HAM mode allowing 262,144 on-screen colors. The graphics hardware also features improved sprite capacity and faster graphics performance mainly due to faster video memory.
Amiga is a family of personal computers produced by Commodore from 1985 until the company's bankruptcy in 1994, with production by others afterward. The original model is one of a number of mid-1980s computers with 16-bit or 16/32-bit processors, 256 KB or more of RAM, mouse-based GUIs, and significantly improved graphics and audio compared to previous 8-bit systems.