Rendering materials in material slot

[hrisek]

Corona renderer is using only ONE core thread to render materials preview in material slot. In complicated materials it's taking ages to refresh all material slots. Is possible to add multithreading for material preview?

Thank You in advance :)

[zzubnik]

I wonder if this is intentional, so as not to make the CPU grind to a halt, killing user interaction?

[Ondra]

It is using all cores. 3dsmax is using only single thread inbetween individual material renders. I cannot do anything about it :/

[zzubnik]

Yet another annoying part of the max code that is single-threaded.