hzeng ([EMAIL PROTECTED]): > I am more and more mazed about the colorkey. As I know, there are > colorkey and chromakey, and we also called the colorkey as destination > chroma key . In chromakey, the video is displayed if and only the > video source data is same with chromakey color. In colorkey , the > video is displayed if an only if the graphic data is same as colorkey > value. Colorkey is used in many drivers, what is the colorkey in these > drivers such as ati and nv. is it meaning colorkey or chromakey? help
The video card will blit video onto areas of the screen that match the color key. So say the colorkey is blue, then if you draw a blue box on the screen, the video card will overwrite that blue area with video. So, to me this sounds like colorkey not chromakey. You can't do traditional chromakey effects where you film a blue screen and have the hardware overwite that blue area with some graphic of your choosing (or show the framebuffer through it). -- Billy Biggs [EMAIL PROTECTED] _______________________________________________ Xpert mailing list [EMAIL PROTECTED] http://XFree86.Org/mailman/listinfo/xpert
