QUOTE(robcat2075 @ Feb 24 2012, 10:20 PM)
I'm still getting 6 minutes with one pass, index of refraction 1.0 and 320x240.
Have you tried yet to reduce rate of emission ? reflections? and then if that doesn't help, shadows? (even tho it's only the RIM light z buffered). I also forgot to say that I turned OFF the Fill light. There is still some raytracing going on. Probably the keylight (no shadows). I think the raytracing is the killer.
To get 49 secs for 1 pass 640 x 480 I did the following (and turned off Fill light):
I set the index of refraction for the glass = 1 (refraction is usually a render hit), turned off shadows, reduced rate of emission to 150, turned off collision checking of particles, turned off reflections.
I'm guessing collision checking probably has no impact on rendering (only on baking).
I did notice as I was playing with the settings for the blobbies that there was alot of wonkiness. ie, sometimes the spline representation for the blobbies would disappear and wouldn't come back until the constellations were aligned properly. I found I couldn't set rate of emission lower than 100 and have anything show up in real-time. However that was last night. Have no idea what it would do today.