Kenneth wrote:
> Having *tried* to work out just the rudiments of something like this myself, I
> can only say THANKS and CONGRATS on putting it all together. Not an easy task!!
> I will definitely be checking it all out, for practical use (in pre-designing
> the stage lighting for local theater plays that I'm involved with.)
Thanks! There are still some issues, but I tried to make it as usable as 
possible for different applications (especially with the global unit 
system).

> One question of curiosity (a practical one, actually): What assumed_gamma is
> *best* for using this package?  I.e., while designing this and working it out,
> which assumed_gamma did you use? I want to make sure I follow your lead.
> 
> KW
> 
I've been running everything with assumed_gamma=1 on my PC for 3.6, and 
removed the statement in 3.7 due to it being deprecated, both of which 
produce the same results. I still notice that everything gets brighter 
when I switch to my mac (mostly dark lights become visible, etc), but 
the color mixes themselves stay the correct color, only a small amount 
brighter. With 3.7 I leave the gamma correction turned on, and that 
works fine. The difference in brightness between mac/pc shows up if I 
take the rendered images over from PC to mac, I haven't compared images 
generated on both.

The more important part (for correct colors) is setting the global 
whitepoint, which I hardcoded into the .inc file to be D50 (after 
comparing the renders to photographs of the real lights). D55 also looks 
decent, but setting it down as low as blackbody(5200) (the color of the 
light sources themselves) makes it all look weird.
It is set right at the top of theatresys.inc, and you can just comment 
that out if you wish to use a different environment.

cshake

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