IPR does not refresh when using multi id material , any parameter change inside sub materials has no effects on IPR.
Hello @len_xie , seems to work on my end, I’ll need a scene to investigate further .
@chakarov, here is the attachment, pls take a look.
IPR_not_refresh.zip (5.32 MB)
The issue is caused by material builder used as input for V-Ray Multi Material, if V-Ray Material is directly connected to Multi Material IPR is refreshed. Anyway I’ll add the issue in our system.
thank you very much !