I've been thinking lately about simple, non-virtual-reality ways to make 3d plots more useful. The main problem I encounter is that, since the palette is applied identicaly throughout the graph, when similar peaks partially overlap, they are impossible to distinguish. I can attach an example, but I imagine users have experienced similar difficulties. How can we work within what splot already does to resolve this issue, without bringing in rendering etc.?
One simple solution to allow the user to set a color modification function that operates as a function of distance from the camera. Depth sorting is already included in gnuplot. So it seems to me that it wouldn't be difficult to allow a function to adjust how elements are placed as a function of distance. For instance, you could define the function to lighten the colors as they recede, to add a haze effect that will help distinguish peaks.
it's a thought, and I would like to hear what people think of it.