I just pushed a initial implementation of the mantis task: ability to save current tonemapping and light group settings from luxGUI into external file.
This is implemented using Qt's qsettings and supports saving and loading the settings from the gamma, tonemapping and light groups panels to .ini files.
This is a very minor feature and I am not sure if its even worthy of a forum post but it seems like it can be useful for some things. What this allows for is "mood" files, such as day or night lighting or variations on tonemaping or CRFs. The light group elements are scene specific, it will not create new light groups and if a light group in the scene is not in the file it will set the values to the default.
This feature however lays the ground work for implementing the ability to output an animation of light groups settings on still image.. for seamless transitions between lights.
The .ini files could be used as key frames for linear interpolation.
Please let me know what you think if anything, for example, should all the settings be in one file? Or if there are any bugs etc, there does seem to be a bit of lag right now for the settings to show up in the rendered image. I plan on looking into this while working on the light groups refuse to be switched off
bug and hopefully get a fix in before release. There does seem to be a general issue with tonemapping reflecting settings right away in several areas.