Like, they try to make police lights just flash blue but there is a clear red tinge in there. What restriction is currently in place causing that?

Apparently it's hardcoded somewhere.
 At least, it's not just replacing a texture or something. Someone made a all blue lightbar with the default
GTAV lightbar so that's cool (I would have liked to see how it was made though).
There's also ELS being worked on,  hopefully an alpha/beta will be released soon.

Apparently it's hardcoded somewhere.
 At least, it's not just replacing a texture or something. Someone made a all blue lightbar with the default
GTAV lightbar so that's cool (I would have liked to see how it was made though).
There's also ELS being worked on,  hopefully an alpha/beta will be released soon.

Oh wow. Surprising, isn't it? That we can mod everything but a police light is really hard, lol. Thanks for the info :)

These two mods have custom lightbars, so it is possible.

 

These two mods have custom lightbars, so it is possible.

Oh, cool, thanks! :)

The issue is that there are two parts to thelight: an ELS-style texture and a corona (the point of light). The coronas available to use on a car are determined by the lighting setup of the vehicle in GTA config files, and no available setups give enough blue coronas. 

But those cars I linked above have custom lightbars....

But those cars I linked above have custom lightbars....

But they use V's emergency lighting. 

 

A "custom lightbar" is not actually a thing as far as GTA is concerned -- all a lightbar is is an inert mesh. The flashing is done through "siren##" nodes, which (in conjunction with the vehicle's carvariations entry) tell V to do some combination of creating a corona there and enabling (and moving to the right spot) a special mesh with the lit-up texture. The lit-up texture is customizable, but the corona is not. Moreover, some coronas have hardcoded directions, and can't even be rotated, which is why people say "lighting is a pain" -- it doesn't mod easily. The flash *pattern* doesn't mod at all -- all you can do is grab siren lights that already have the right pattern. 

All the "custom lightbars" do is rearrange the lights which were already on the car (within V's limits) and add a mesh to be a different lightbar shape. While textures can be modified as part of this, the corona (which makes it look like a bright light instead of a painted spot) cannot. And so you can't give a car more blue lights than Rockstar gave cars with its light setup, and your use of those blue lights is limited. 

so how do you guys think they have made ELS for V possible so soon...? i know it isnt released, but it seems like the lights and lightbars are a real pain, but it doesnt effect the devs of that mod... lol