Lighting:Light Style

This page is work in progress!

Light Style

About

Adding light style to a light entities let's the mapper create the effect of dynamik lighting. True dynamik lightning in Urban Terror does not exsist. The effect is created simply by the engin using a lightimage and shaders.

One thing to think of before using Light Style is that the engin have to redraw the scene with the lights. This is affecting the fps of the level. So use it with care.

How to. Step by Step

1. Start by selcting any brush that is a part of your worldspawn.

2. Add the folowing key "_style1alphaGen" with the value "wave sin .5 .3 .25 1.5" (without the ")

3. Add the folowing key "_style1rgbGen" with the value "wave noise 0.5 1 0 5.37" (without the ")

4. Edit the values to the value you want

5. Add a light and enter the key "style" with the value "1" (without the ").

Multiple Light Styles

It is possible to add more light styles. To do that enter "_styleXalphaGen" and "_styleXrgbGen" with another number instead of the X.

Sample Map

There is a test map here: http://www.robotrenegade.com/q3map2/downloads/samples/maps/map-slstyle.zip

The q3map2 will generate lightmaps and a shaderfile for the light style. The lightstyle shader that is generated should not be changed.

Use the "Light Style Enitie" with care. It is not the best way of doing this and should not be the first tested

Light Style Enitie

In some cases adding lightstyle to the worldspawn does not work. If that happends you can make a func_group, adding the values to it instead of the worldspawn. Or you can add a enitie with the values.

To make a enitie make a new file in radiant/q3.game/baseq3/ called lightstyle.def. Add the folowing lines to this file:

//Light_style

// * * * * * * * *

/*QUAKED Lightstyle (0.3 0.9 0.4)(-5 -5 -5) (5 5 5) An false enitie used for adding light styles to the map.

---

KEYS --------

_style1alphaGen : This controles the behavior of the light(eg. wave sin .5 .3 .25 1.5) _style1rgbGen : This controles the color of the light(eg. wave noise 0.5 1 0 5.37)

• /

When you open radiant again there will be a new enitie in the list called Lightstyle. It will look like a small green box. The values in the comments are suggestions, so just enter the walues you need instead.