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trs:miscellany [2020/05/19 14:49]
zdimension [Palette] |
trs:miscellany [2020/05/19 14:49]
zdimension [Palette] |
| This consists of 256 [[trs:fundamentals#tr_colour|[tr_colour]]] structs, one for each palette entry. However, the individual colour values range from 0 to 63; they must be multiplied by 4 (or bitshifted by 2 to the left) to get the correct values. Palette is used for all 8-bit colour, such as 8-bit textures. | This consists of 256 [[trs:fundamentals#tr_colour|[tr_colour]]] structs, one for each palette entry. However, the individual colour values range from 0 to 63; they must be multiplied by 4 (or bitshifted by 2 to the left) to get the correct values. Palette is used for all 8-bit colour, such as 8-bit textures. |
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| {{:icons:tr1.png?nolink|TR1 only}} First entry in palette is treated as //transparent colour// used for textures with alpha testing. In later games, transparent colour was replaced by so-called ""magenta transparency"", meaning that any pixel with red and blue values at maximum and green value at zero, is treated as completely transparent. | {{:icons:tr1.png?nolink|TR1 only}} First entry in palette is treated as //transparent colour// used for textures with alpha testing. In later games, transparent colour was replaced by so-called "magenta transparency", meaning that any pixel with red and blue values at maximum and green value at zero, is treated as completely transparent. |
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| ===== Object Textures ===== | ===== Object Textures ===== |
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