Hi Nick,
I've done some tests with v0.6t6 and found following issue. The following scene contains 5 boxes with blackbody lights inside (from dark to bright)and 1 box with a rgb-emmiter (below).
When I render this scene with BI-DIR I can see some diagonal patterns on the light sources??? This does not happen when BI-DIR is disabled.
Also the energie emitted by meshlights is not the same in bi-dir and uni-dir. I have scenes where i have balanced different light sources for bi-dir, when i render them without bi-dir the light balance does change (some are too strong, others too dark
)greets zuegs
