How to keep Niagara unaffected by post-processing effects?

Hi, I‘ve alreadly made an outline postprocessing effect, and smoke based on niagara particles,I want the smoke remain unchanged under this postprocess……please help me!


this is my outline postprocess

this is the niagara i want to keep

this is the final look i want

plz help me!!!!!!

If its translucent object, You can try setting this option, set this setting “translucent Pass ->Before DOF to After DOF” which in object/particle material detail panel。
Of course, if it is a regular object, you can choose the custom depth feature to cull in the postprocess material。

in Your Material that using in Niagara Emitter, find Allow Custom Depth Writes and turn on
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