Hi Stefan,

I try to answer in this thread on question from http://moi3d.com/forum/index.php?webtag=MOI&msg=4446.193

I probably know, what you mean... for example here http://moi3d.com/forum/index.php?webtag=MOI&msg=8600.10

... reflection on chrome axle inside suspension spring isn't align correctly.

( I hope that Zarkow will not be angry at me, because I admire his creativity, scene compositions and illumination of render ... we try to analyse only Octane performance :-) )

I think that sharpening of image can accentuate this artefact on the other hand right settings of render kernel inside Octane can improve this artefact, especially Filter size ( "Sets the filter size in terms of pixels. This can improve aliasing artifacts in the render. However, if the filter is set too high, the image can become blurry." ...source here https://help.otoy.com/hc/en-us/articles/115001714686--Pathtrace-Kernel )

As you can see from render a lot of "hot pixels" (fireflies) are visible....a very simple trick can be used to reduce/eliminate them... it is good to set double render size as required and then resize the picture by 50%, then hot pixels disappear, you can try it if you download the origin Zarkow's render DIN A3 size.

I've found quite good Octane tutorials ( https://www.youtube.com/watch?v=zXUE-39fwug&list=PL0DBA6671E0A1743B )

Mik