is it possible to make a light only emit specular or diffuse

Unreal Engine Rendering
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#1

im used to working in more standard 3d packages, where you can choose if alight has a specular, or diffuse response, or both

im mainly thinking for getting a specular highlight in a characters eyes, without effecting the overall scene lighting

and on that note, can you make a light only effect certain elements- like character, but not environment?

#2

Hi,

That is no longer possible with UE4 since there are no lighting channels like there were in UE3. UE4 uses a deferred render system vs UE3’s forward rendering system which means that lighting is now added after the materials are baked rather than before.

Thank you!

Tim