kool kitty89 Posted January 26, 2010 Author Share Posted January 26, 2010 You also can't really gouraud shade in any useful way, since the fractional parts of the gouraud shader work either on 4 or 8-bit boundaries, and the RGB boundaries are 5-bits. Another way to think of that is that you might be able to smoothly shade green and blockily shade red (with 16 shades), but blue can't be shaded at all -- not very useful for common colors such as white. Huh, maybe a 12-bit RGB mode could have been useful in that respect (due to the 4-bit boundaries), though that might be so limiting there'd be little advantage over CRY at all. (you could get 4 brighness levels for any colors present in 9-bit RGB, 8 for 6-bit, and 16 for 3-bit -black being common though, so really 3/7/15 shades) You also can't easily blend colors because saturation is also 8-bits, thus you end up with your math all screwed up, with colors wrapping around in unpredictable ways (i.e., bright green + bright green = black, which makes no sense).Oh, so even 4-4-4 RGB wouldn't help there. So the only other option for RGB would be shading in software? Quote Link to comment Share on other sites More sharing options...
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