Are they emitting shadows too? If yes, it would be great an option to disable for build cities with buildings and street lights. For see from a plane not necesary they are emiting shadows i guess and performance cost would be huge (i assume).
Emissive is a on-texture only effect (I may be wrong). You could probably use bloom to give a "diffuse " effect to the light, but it can't cast shadows (that's also why it's the best solution for performance, but is limited).
Some folks have already used emissive to add light lights for buildings models, maybe they could post some pics here 
But the great is, the emissive textures are not only autoiluminated color (white, yellow or whatever light), but actually affect ligh on the enviroment.
So if we make a house or a city, those lights from buildings windows can put some light on the street. Same when you use for a plane cockpit, etc.
Without cast shadows is perfect coz surely the engine is capable of zillions of textures (a city for example) with great performance. So not so necesary. But the option to active shadows would be also nice for some uses, like lights of the car for example.
For make lights of the city with street lamps with very little job (just copy paste lamps), so avoid a huge effort puting real lights.
So i assume soon we will see some screens here with street lamps (similar to poles we saw already) with light emision.
its the freedom to put a lot of lights directly on the objects and copy them easily.
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Topic: Random Development Screenshots on Twitter (Read 173866 times)