External State IDs

GTA V use External State IDs in order to know what light on the vehicle is what. Please note that this does NOT apply to Emergency Vehicle Lighting.

For Emergency Vehicle Lighting, you should use the base external state ID which is 0

Light	Light Name in ZModeler	External State ID
Left Headlight	headlight_l	1
Right Headlight	headlight_r	2
Left Taillight	taillight_l	3
Right Taillight	taillight_l	4
Front Left Indicator	indicator_lf	5
Front Right Indicator	indicator_lr	6
Rear Left Indicator	indicator_lr	7
Rear Right Indicator	indicator_rr	8
Left Brake Light	brakelight_l	9
Right Brake Light	brakelight_r	10
Middle Brake Light	brakelight_m	11
Left Reverse Light	reversinglight_l	12
Right Reverse Light	reversinglight_r	13
Extra Light 1	extralight_1	14
Extra Light 2	extralight_2	15

All External State IDs must be applied using Vertex mode and Polygon mode in ZModeler