finally figured out a bug thats been a plague in some scene. if the corona light is missing ies file the viewport becomes extremely stuttering if the corona lights that are missing the IES file is visible in viewport. as soon as the light is not visible in the viewport its fine or the IES is removed the viewport is fine. Very weird bug.
here is max file with only the corona lights. issue is immediately apparent for me at least.https://we.tl/t-7q1878eIU1Max 2022 and corona 9, (issue was the same in 8)
Can you please clarify what GPU you are currently using?
Quote from: GeorgeK on 2022-10-24, 11:51:15Can you please clarify what GPU you are currently using?3080tiNvidia driver: 512.77Threadripper 3970xWindows 11 proVersion21H2