Captain14

You have to change the color of the respective corona by editing the carcols.ymt. Find the siren you would like, e.g. siren1, under the sirensetting you're using and edit the corona color. You will see a line that reads something like this: <color value="0xFFFF0300"> That's the color the corona will flash represented as ARGB in hex. 0xFFFF0300 is red, 0xFF000AFF is blue.

Rich Sobilo's model? I've been working with this too for my upcoming LSPD pack, I have fixed headlight/taillight textures if you want them.

Something worth testing is just placing the "sirenlight" texture for your specific vehicle directly into the vehicle's .ytd file. This way, the carcols will not have to have the texture name edited for each individual vehicle. I would guess that the game will load the sirenlight texture from the vehicle .ytd rather than from the graphics.ytd if it is present.

Actually on further testing it might be best just to stick with a uniform 32 or 64 bit length as it appears sometimes the additional bits can get cut off. I have yet to try with 64 but I will tonight. I just use the Windows calculator in programmer mode to convert from binary to decimal.

After testing I've found that flash patterns do not need to be 32 bits. They also do not appear to require being a specific number of bits (I've tried patterns using 42 and 58 bits and both worked fine). Also, video of the explorer I'm working on (flash patterns have since been updated for both the Integrity and the Dominator):

You have to set their ID in Zmodeler (Properties->External state). Extralight 1 is 14 and Extralight 2 is 15. You have to set the ID for all the mesh you want to be emissive in both polygon and vertex mode.

Do you plan to use Carcols.ymt modifications to accomplish different light patterns?

This is what I have done with all of the models in my sheriff pack for at least some of the sirens, it works great when you want environmental lighting but don't want the strobing effect on a particular light module.

Here's the completed (for now) Tahoe: Did something new with this one which is changing the ScaleFactor of some of the lights. The front window Solaris ILS bar uses only 4 sirens (with coronas), each of which has lights on both sides. Normally this would cause an issue as scaling the lights to 50% would leave them exposed when off, but I've set the ScaleFactor to 100 so my lights are basically microscopic and hidden inside the housing when off.

Getting more creative...

Does it work using only 16-bit integers? I have only used 32 bit flash patterns so far.

I haven't tested, but I'm assuming any integer will work. It may get a little iffy once you get into higher digits.