Dynamic lighting with emissive material?

I’m trying to make a virtual concert in UE4. Recently I’ve gotten the visuals to be an emissive material, however they only update at buildtime instead of runtime. The images attached are a before/after of building the lighting.

http://puu.sh/hXUml/5afd6521a8.png

http://puu.sh/hXUst/e91ebe1f9e.png

Is there a way to make the lighting update dynamically along with the video material rather than only updating at build-time?

As far as i know, you can only get static lighting from an emissive material, so it is baked in during a build and never changes after that. Dynamic lighting from an emissive would require real-time global illumination, but I’m not sure even UE4’s real-time GI solution – light propagation volumes – will take dynamic lighting from an animated emissive texture.

I recommend using a dynamic light with a light function, behind your emissive texture, that simply uses a blurred version of the same media to project onto the environment.