Lights.rad: Difference between revisions

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= Overview =
{{disambig}}
'''Lights.rad''', is a file that specifies the color, and Brightness values for materials that can cast and receive Light. This applies to Materials that are of any shader. A lights.rad file already exists within a normal Game directory, however it is possible to make your own.


However these are the current Shaders most ''commonly'' used to cast Light:
{{file|lights|rad}} is a [[RAD file]] which is always automatically read by the lighting compilers. This is used to create texlights. In this file is a texture then an RGB value followed by a brightness value.


* [[LightmappedGeneric]]
* For creation and use of <code>lights.rad</code> file, see the [[RAD file]] page.
* [[UnlitGeneric]]
* For a list of {{src|4.1}} games' <code>lights.rad</code> file, see the [[:Category:Source RAD files]] page.
* For a list of {{goldsrc|4.1}} games' <code>lights.rad</code> file, see the [[:Category:GoldSrc RAD files]] page.


A lights.rad file can be edited with any preferred text editor, and most commonly looks like this:
[[Category:RAD]]
 
lights/white001 250 240 205 100
lights/white002 189 233 247 425
lights/white003 232 246 190 350
lights/white004 170 228 247 425
lights/white005 234 235 220 375
lights/white006 234 235 220 100
 
Aside that, the file can also specify other parameters beside lighting values. It can also tell [[Vrad | VRAD]] to ignore lighting on certain materials, or to calculate shadows based on a Textures [[Alpha]] channel.
 
:The below command tells VRAD to skip shadows casted on this material. Therefore shadows will not be calculated on this material.
noshadow tree_deciduous_01a_branches.vmt
 
This command, however tells VRAD to calculate shadows based on a [[model]]s Texture. More importantly on the textures within the Model that contain an Alpha channel.
 
forcetextureshadow props_wasteland/interior_fence001a.mdl
 
= See Also =
* [[ Vrad | VRAD]]
* [http://developer.valvesoftware.com/wiki/Category:List_of_Shaders List of Shaders]
* [[Creating a Material]]

Latest revision as of 12:57, 6 August 2025

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🖿lights.rad is a RAD file which is always automatically read by the lighting compilers. This is used to create texlights. In this file is a texture then an RGB value followed by a brightness value.

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