I'm struggling a bit to understand what it is exactly that the settings in these models do (and it doesn't help that I'm currently meterless).
For example, which points do the CMS controls (r-hue, r-sat, r-lum, etc.) pull around, to what extent and in which direction? Can the greyscale spine be shifted using these controls or do they only act on non-zero saturation points?
Does anyone have a mathematical model of an idealized version of Panasonic's VT60 colour management/decoding system that describes how input signal values are transformed into output values? Or, failing that, some pseudocode?
When I look around online all I see are some charts and graphs and people using trial and error to make adjustments. I cannot find any Panasonic documentation explaining how these controls work in detail. The mathematical models I find concern general colour space transformations etc., but do not include any reference to 10-pt gamma controls etc. And we end up with various seemingly inexplicable mysteries, e.g., why changing the gamma preset to 2.4 necessitates a change in the brightness control value.
Perhaps there is information out there that I haven't found, but as things stand I find this incredibly frustrating.