| 摘要 |
An array 1 of texture data elements (texels) is subdivided into a plurality of 8 x 4 texture element blocks 2, each of which 8 x 4 texture element blocks 2 encodes two 4 x 4 texture element sub-blocks 3, 4. Each encoded texture data block 5 includes data indicating a method to be used to generate a set of colour values to be used for the texture elements that the encoded data block 5 represents, and data indicating a method to be used for generating the colours of the individual texture elements using that generated set of colours. As well as the individual texture data blocks 5, a header data block encoding a base set of colours is generated. This base colour set defines a set of colours that is used to generate the colours to be used when reproducing each individual encoded texture data block 5. |
