New feature-time (or actually finally finishing a feature already there since the beginning): Exchangable environments!
The environment emission scale has been there since forever, and i guess most of you wondered what this is all about, as the underlying environment image was hardcoded and, even worse, just LowDynamicRange.
So with the next build it will be possible to finally exchange this environment image,
and to also load HighDynamicRange images in .exr and .hdr format in general (which can be assigned also to the ball, flashers, (pass-through-mode-)lights, and the background).
The layout for environments is the common Latitude/Longitude format (see for example http://gl.ict.usc.ed.../tutorial04.php), whereas the ball still uses the "old" format of course. Note though that you should not use environments that are really really large (i'd suggest using 1024x512 at most, but 512x256 should be really enough).
And here some examples, just exchanging the environment, while changing nothing else (and the last used environment pic (converted from HDR to LDR) to show the layout used):