abstrax wrote:It's technically not feasible to increase the sample limit further as it will run into numerical issues due to limited amount of floating point precision. There are also other issues like degraded effectiveness of sampling beyond 128K samples/pixel.
In general if you can't render your scene properly with 1 million samples/pixel, you either have to change your scene or change your method.
Problems for caustics!??? But I tested 10 laps of 1 MS/px (= total 10 MS/px) and caustics got no any issues at
path tracing kernel.
"Box" scene on OR standalone (not OR plugin for Blender):
--
1 MS/px of region picked during
6h30min at 1680x1050 on my old
GTX 980 Ti SC+ at photon tracing kernel (NOTE: PPM method can't render any variable caustics at less than ~0.4 roughness of glossy ground) but
brightness increased badly caustics --
--
10 MS/px of region picked during
2h10min at 1002x602 (due to "demo") on my new
RTX 4090 at path tracing kernel --
(Very) Good caustics = caustics little noised despite path tracing kernel.
