Glossary: Difference between revisions
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Rainwarrior (talk | contribs) (→Graphics: CHR, raster, scanline) |
(sprites can be bigger than 8x8; saying "a sprite is a tile" is misleading) |
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| Line 24: | Line 24: | ||
: An 8x1 pixel segment of a tile. | : An 8x1 pixel segment of a tile. | ||
; [[Sprites|Sprite]] | ; [[Sprites|Sprite]] | ||
: A 16-colour (4bpp) | : A 16-colour (4bpp) square of tiles, usually 8×8, 16×16, or 32×32 pixels in size, that can be drawn anywhere on the screen. | ||
; [[Tiles|Tile]] | ; [[Tiles|Tile]] | ||
: A small square graphic. | : A small square graphic. | ||
: SNES tiles are | : SNES tiles are 8×8 pixels in size and are stored in a variety of formats in VRAM. Adjacent tiles can be combined to create larger tiles for backgrounds and sprites. | ||
; [[Tilemaps|Tilemap]] | ; [[Tilemaps|Tilemap]] | ||
: A grid (in VRAM) that describe which tiles and palettes to draw for a background layer. | : A grid (in VRAM) that describe which tiles and palettes to draw for a background layer. | ||
; [[Tilemaps#Mode_7|Mode 7 Tilemap]] | ; [[Tilemaps#Mode_7|Mode 7 Tilemap]] | ||
: A | : A 128×128 grid of 8-bit tile indexes for the Mode-7 background (in VRAM). | ||
; [[Tilemap#Format|Tilemap Entry]] | ; [[Tilemap#Format|Tilemap Entry]] | ||
: A 16 bit word containing the tile index, flip, palette index and priority. | : A 16 bit word containing the tile index, flip, palette index and priority. | ||
| Line 38: | Line 38: | ||
: Generates video output from VRAM, CGRAM and OAM memory. | : Generates video output from VRAM, CGRAM and OAM memory. | ||
; VRAM | ; VRAM | ||
: Video-RAM. The SNES has | : Video-RAM. The SNES has two 32 KiB Video-RAM chips (64 KiB total VRAM). | ||
: The VRAM holds [[Tiles|tile]] data, [[Tilemaps|tilemap]] data and [[offset-per-tile]] data | : The VRAM holds [[Tiles|tile]] data, [[Tilemaps|tilemap]] data and [[offset-per-tile]] data | ||
Revision as of 14:30, 26 July 2022
Graphics
- Background
- A grid-based layer containing a tileset, one or more tilemaps, a scroll offset and other attributes.
- CGRAM
- 256 15-bit words of memory located in the PPU that holds the palette data.
- CHR
- Character
- Another word for tile.
- Nametable
- Another word for tilemap.
- Object
- Nintendo's term for Sprite.
- OAM
- Object Attribute Memory
- 544 bytes of memory located in the PPU that holds the sprite table.
- Palette
- A color lookup table.
- Raster
- A horizontal line of the output picture. (Also: scanline)
- Scanline
- A horizontal line of the output picture. (Also: raster)
- Sliver
- An 8x1 pixel segment of a tile.
- Sprite
- A 16-colour (4bpp) square of tiles, usually 8×8, 16×16, or 32×32 pixels in size, that can be drawn anywhere on the screen.
- Tile
- A small square graphic.
- SNES tiles are 8×8 pixels in size and are stored in a variety of formats in VRAM. Adjacent tiles can be combined to create larger tiles for backgrounds and sprites.
- Tilemap
- A grid (in VRAM) that describe which tiles and palettes to draw for a background layer.
- Mode 7 Tilemap
- A 128×128 grid of 8-bit tile indexes for the Mode-7 background (in VRAM).
- Tilemap Entry
- A 16 bit word containing the tile index, flip, palette index and priority.
- PPU
- Picture Processing Unit
- Generates video output from VRAM, CGRAM and OAM memory.
- VRAM
- Video-RAM. The SNES has two 32 KiB Video-RAM chips (64 KiB total VRAM).
- The VRAM holds tile data, tilemap data and offset-per-tile data
