![]() Pixels with a bit pair of "11" will have the color specified in address 53286/$D026.Pixels with a bit pair of "01" will have the color specified in address 53285/$D025.Pixels with a bit pair of "00" appear transparent, like "0" bits do in high resolution mode.Since each such multicolor pixel is defined by two bits of data rather than one, each pixel can do one of four things: In multicolor sprites the bits are grouped in pairs, forming pixels that are twice the width of high resolution pixels. Such pixels can appear either in front of or "hide" behind other sprites or other graphics see the section on sprite priority below. Bits set to "1" will cause the corresponding pixels in the sprite to assume the individual color set for each sprite (see the section color settings below).whatever graphics or color is behind the sprite, will show through these pixels. For bits set to "0" in the sprite data set, the corresponding pixel will be transparent, i.e.Since a bit can assume one of two states, each pixel in a high resolution sprite can do one of two things: The 63-byte sequence forming this sprite thus begins with 0, 126, 0, 3, 255, 192, 7. The bytes are read from left to right, row by row (just like reading ordinary text), and converting the bit pattern for this example into decimal byte values yield the figures indicated to the right of the grid. Each byte is read with the leftmost bit as the most significant, and the rightmost bit as the least significant one. To the right is a 24×21 raster image depicting a solid circle: The grid is divided into "strips" of 8 pixels, or bits, i.e. For different pixel patterns the values must sum together - like 170 for setting bit 1 (value 2), 3 (value 8), 5 (value 32) and 7 (value 128). For setting all pixels the sum of values is 255. If a value is used, a pixel (bit) is set (also look to the example picture on the rigt side). In theory, one VIC-bank with no ROM charset mirror can hold 256 sprite patterns, but allowing for a text screen and a character set, the practical number is no larger than 208 different patterns.Įach byte contains eight bits (7-0), which have these values: 128, 64, 32, 16, 8, 4, 2 and 1. This arrangement "interleaves" one unused byte in each avaliable 64-byte "block" the contents of this "64th byte" has no influence on the sprite's appearance. These 63 bytes are stored in RAM within the current VIC bank, beginning at an address divisible by 64 i.e. King's successor as S.C.L.C.The "pattern" or "design" of both multicolor and high-res sprites always fits in to a "grid" of 24 bits in width, and 21 bits in height a total of 504 bits, which in turn fit into 63 bytes.Dutch explorer who lent his name to a sea and an island (10).About to get a Ph.D., definitely, if not this year then sometime in the next five (3).I Do, I Do, I Do, I Do, I Do singers (4).Edible mollusks that cling to rocks (8). ![]()
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