Converting Indicators to Emergency Lights

For this tutorial we will be converting rear indicators to emergency lights however the same applies to wing mirrors etc.

1. Make a copy of your rear indicators which should be named indicator_lr (left rear) & indicator_rr (right rear)

2. To make things easier, unlink the indicators from the main vehicle and hide the rest:

1. Highlight both indicators and dismiss the compound:

1. Select a child from both indicators and unlink once again:

1. Delete the other sections of the indicator (apart from the section you just unlinked in step 4):

1. Select both indicators with 'Alt + Left Click' (should highlight red) and then centre local axis to object:

1. Go to Properties > Polygons > Materials and select the texture you would like to apply. You can apply any emissive material which you have previously imported which contains the colour of light which you would like to apply (In this case, blue):

Don't worry if the indicators don't look like what they're supposed to, we still need to UV Map

1. Ensure both indicators are selected and right click anywhere in the perspective window which you would like to view the UV mapping from. (If you are doing rear indicators, right click anywhere in the 'Back' window, or if you're doing wing mirror indicators, right click anywhere in the 'Front' window). Then select Mapping > Edit UV:

1. This window should pop up. Ensure Edit UV Channel map is 1, keep old mapping and From world XYZ is selected. Then press OK.

1. Change one of your perspective windows to UV Mapper:

1. In the bottom left of the window, select Material and then select the material you would like to edit:

1. Select the indicator outline (Ensure you're in object mode) and move/rescale the indicator as you please. In this case, we want flashing blue lights so we will map the indicator to a section in the blue area:

Indicators should change colour as you're editing the UV Mapping

We are now done with UV Mapping so feel free to close the UV Mapper window.

1. Using side view, move the indicators back a VERY small amount to ensure that they are in front of the original indicators. Like this they won't clash:

You should find that if you toggle the original indicator, the blue emissive should be in front of it.

1. Before we begin setting the light up for ELS/Non-ELS, we need to change the light's External State.

GTA V uses External States in order to know what light is what. Currently, our lights are assigned as indicators (which we do not want).

Select both indicators, select vertex mode and then click on an indicator:

They should look something like this.

1. Select both indicators again using Quadr (Shift + G & then right click and drag over the indicators). They should look something like this:

1. Go to Properties > External State in the Scene nodes browser. Then change the ID value to 0.

Make sure to Apply the changes!!!

1. Do the exact same thing for Polygon mode.

2. You can now setup this emissive light as a normal ELS or Non-ELS light. However don't forget to rename it to an extra or siren depending on whether you're using ELS or Non-ELS.