hidden object but emissive material

hello expert i have a animated object imported from cinema 4d i want to use this object as emission but i want to hide that object in render . i tried a few way from forum such as hidden in game but on in indirect lightning as well as LUMEN_CARD_CAPTURE , but i am unable to hide that object while rendering. what is the best way to fix this .

thank you

Depending on what version of UE you are on there is a flag on the actor called Affect Indirect While Hidden that you can enable. If you are using Lumen you might have to disable screen traces. In 5.4 this will be a checkbox in the PPV but in earlier version you have to do it with a cvar.

r.Lumen.ScreenProbeGather.ScreenTraces 0