Using Russian Roulette sometimes results noticeably more noise (build 6af7d7e) than regular probabilistic termination in Blender 2.79 RC1 with the same render time.
|2.79 RC1 (512 SPP, 69.73 s)||6af7d7e (512 SPP, 54.05 s)||6af7d7e equal time (670 SPP, 69.59 s)|
Max and min samples were set to 8 and 4 respectively in RC1.
A second scene tested with build 4d428d1 exhibits the same results.
|2.79 RC1 (256SPP, 34.98s)||4d428d1 (256SPP, 24.13s)||4d428d1 equal time (380SPP, 35.28s)|