Hi guys!
I've been using Corona for a while now, and must say I've been pretty satisfied so far.
Until I worked on last project which took 5 hrs rendertime on my i7-3930k + 2×i7 4790k slaves with 1920/1200 resolution.
That was quite unpleasant surprise, since it needed to be finished quick, and noise free, but I got stuck with rendering.
Scene have hdr in environment, portals properly mounted on windows, I've checked albedo.
I've noticed direct lighting gave me noise in some shadow areas, but indirect pass was totally clear, so I decided to raise LSM to 32, and leave GI/AA to16.
That gave me equal amount of noise for direct and indirect passes on start of render, and shorter rendertime in general, but still too lonf.
Did I miss some setting? Could anybody help to get rendertime shorter or determine problem, so it could be avoided in future?