Hi.
I've implemented the direct color rendering because I wanted to know if I was doing things ok. The results are TERRIFIC! Even using just 256 colors, a true color plot I did to test looks almost the same!!!
I did things this way. First I get colors from the friend Heckbert in 2 seconds flat. Then for each pixel of the source I compute the closest quantizated color and replace it. I cache all results to speed up things. All in all, in a couple of minutes I had a passed test for the whole thing.
Now I'd like to see if I can make it with BitBlt...
Andres.