发明名称 |
Three-dimensional graphics system reducing color data/bits in drawing operations for faster processing |
摘要 |
An object is to obtain a three-dimensional graphics system capable of color display with reduced operation time. A color data transform portion (2A) extracts the upper k (k<n) bits from n bits for each of R, G and B in RGB original color data (C1) in geometrically-processed three-dimensional data (D1) and transforms the RGB original color data (C1) into reduced color data (C2) in such a manner that the sets of k bits are assigned respectively to R, G and B, thus providing color data for three-dimensional data (D2) to be used in the drawing operation. A drawing operation portion (3A) applies drawing operations including color processing operation based on the reduced color data (C2) to the three-dimensional data for drawing operation (D2) obtained from the color data transform portion (2A) and outputs three-dimensional graphic drawing data to a drawing unit (4). The drawing unit (4) displays three-dimensional graphics in color on a display screen in a display unit.
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申请公布号 |
US6801214(B1) |
申请公布日期 |
2004.10.05 |
申请号 |
US20000603916 |
申请日期 |
2000.06.26 |
申请人 |
RENESAS TECHNOLOGY CORP. |
发明人 |
MORIWAKI SHOHEI;AZEKAWA YOSHIFUMI;CHIBA OSAMU |
分类号 |
H04N1/393;G06T1/00;G06T15/00;G09G5/02;H04N1/46;(IPC1-7):G09G5/02 |
主分类号 |
H04N1/393 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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