2.7 - Dynamic Light Emission from CPU Particles

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Another fantastic and highly useful particle feature in the Unreal Engine is the ability for CPU particles to emit light. By adding a Light module to your Emitter, particles from the Emitter can also spawn a dynamic light. You can use the module's properties to control the intensity of the light, the radius, etc.

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Although you have the ability to control the percentage of particles that create their own lights (meaning you could have, say, only 50% of the particles actually create a light), this effect can get very expensive very fast. It is not uncommon to have a separate (duplicate) emitter that spawns a lot less particles and use the Light module on that one.