Elaine points out that "no color" for depth cueing really uses the background color, not necessarily black or white as I said in my previous message. The "glare" problem in volume rendering becomes apparent only when the background color has differing non-zero red, green, or blue components! Why? Because volume rendering sums up these color values for planes at many depths, but the sum for each of the RGB components is clamped to a maximum of 1. So with background color, say RGB = (1, 0.5, 0) the sum of the depth cue color on the planes ends up being (1, 1, 0) due to the clamping which is a different color, not matching the background and it looks like a bright brick in the volume rendering. Tom Elaine Meng wrote:
Technically, "No color" makes depth cuing use the same color as the background (not necessarily either black or white), but close enough for the purposes of your discussion!
On Aug 3, 2007, at 12:30 PM, Tom Goddard wrote:
If you have depth cueing set to "No color", which is the default, *and* you use a light background color, then Chimera interprets "no color" as white. With a dark background color, I use black, "no color" for depth cueing is interpreted as black.