Lights.rad/Half-Life 2

The hl2 folder included in most Source 2013 Multiplayer game installations (as well as a few other games) does not include the lights.rad file included in Half-Life 2's hl2 directory. While this is not a problem for most games, as they include their own lights.rad, some titles such as Half-Life 2: Deathmatch and Source SDK Base 2013 - Multiplayer do not, which can result in unexpected results in some circumstances. The vanilla Half-Life 2 radfile is provided below for reference.

This version of lights.rad is from Half-Life 2 20th Anniversary Update, with fixed lights/white004 HDR brightness (was "100" when it's should be "212", exactly half of their LDR counterparts).

lights.rad

This is a RAD file, that can be used to manipulate the way QRAD, HLRAD, and VRAD handle given brush textures when compiling static lighting. In Source, this can be also used to forcing props to cast texture shadows.
To add a RAD file to the map editor, copy the following text into a text editor such as Windows Notepad, Notepad++ or Visual Studio Code, and save it with "save as type" being "all files" and .rad appended to the file name.

Tip:Select the beginning of the line (usually the "//" comment) by clicking it, scroll down then hold ⇧ Shift, and click at the end of the line to select all.

hl2/lights.rad

rad

ldr: lights/fluorescentcool001a 189 231 232 350 hdr: lights/fluorescentcool001a 189 231 232 175 ldr: lights/fluorescentcool001b 236 255 182 350 hdr: lights/fluorescentcool001b 236 255 182 175 ldr: lights/fluorescentcool002a 189 231 232 400 hdr: lights/fluorescentcool002a 189 231 232 200 ldr: lights/fluorescentcool002b 236 255 182 400 hdr: lights/fluorescentcool002b 236 255 182 200 ldr: lights/fluorescentcool003a 189 231 232 300 hdr: lights/fluorescentcool003a 189 231 232 150 ldr: lights/fluorescentwarm001a 239 216 193 350 hdr: lights/fluorescentwarm001a 239 216 193 175 ldr: lights/fluorescentwarm002a 239 216 193 400 hdr: lights/fluorescentwarm002a 239 216 193 200 ldr: lights/fluorescentwhite001a 245 245 245 350 hdr: lights/fluorescentwhite001a 245 245 245 175 ldr: lights/fluorescentwhite002a 245 245 245 400 hdr: lights/fluorescentwhite002a 245 245 245 200 ldr: lights/hazzardred001a 228 37 0 300 hdr: lights/hazzardred001a 228 37 0 150 ldr: lights/hazzardyellow001a 250 215 74 300 hdr: lights/hazzardyellow001a 250 215 74 150 ldr: lights/HIDcool001a 145 222 172 650 hdr: lights/HIDcool001a 145 222 172 325 ldr: lights/HIDcool001b 205 232 255 650 hdr: lights/HIDcool001b 205 232 255 325 ldr: lights/HIDwarm001a 255 201 116 650 hdr: lights/HIDwarm001a 255 201 116 325 ldr: lights/white001 250 240 205 100 hdr: lights/white001 250 240 205 50 ldr: lights/white002 189 233 247 425 hdr: lights/white002 189 233 247 212 ldr: lights/white002_soft 189 233 247 100 hdr: lights/white002_soft 189 233 247 10 ldr: lights/white003 232 246 190 350 hdr: lights/white003 232 246 190 175 ldr: lights/white004 170 228 247 425 hdr: lights/white004 170 228 247 212 ldr: lights/white005 234 235 220 375 hdr: lights/white005 234 235 220 187 ldr: lights/white006 234 235 220 100 hdr: lights/white006 234 235 220 50 ldr: lights/white001_nochop 250 240 205 100 hdr: lights/white001_nochop 250 240 205 50 ldr: lights/white002_nochop 189 233 247 425 hdr: lights/white002_nochop 189 233 247 212 ldr: lights/white003_nochop 232 246 190 350 hdr: lights/white003_nochop 232 246 190 175 ldr: lights/white004_nochop 170 228 247 425 hdr: lights/white004_nochop 170 228 247 212 ldr: lights/white005_nochop 234 235 220 375 hdr: lights/white005_nochop 234 235 220 187 ldr: lights/white006_nochop 234 235 220 100 hdr: lights/white006_nochop 234 235 220 50 ldr: lights/incandescentcool001a 235 235 235 300 hdr: lights/incandescentcool001a 235 235 235 150 ldr: lights/incandescentwarm001a 250 226 129 300 hdr: lights/incandescentwarm001a 250 226 129 150 ldr: glass/glassscreen001a 172 192 161 225 hdr: glass/glassscreen001a 172 192 161 112 ldr: glass/glasspipe001f 214 72 44 200 hdr: glass/glasspipe001f 214 72 44 100 ldr: glass/glassscreen001c 172 192 161 225 hdr: glass/glassscreen001c 172 192 161 112 ldr: glass/glassscreen001d 211 187 134 225 hdr: glass/glassscreen001d 211 187 134 112 ldr: glass/glassblock001a 70 194 209 200 hdr: glass/glassblock001a 70 194 209 100 ldr: composite/citadelfloor001a 103 143 203 200 hdr: composite/citadelfloor001a 103 143 203 100 ldr: props/tvscreen006a 196 0 0 200 hdr: props/tvscreen006a 196 0 0 100 ldr: shadertest/gooinglass 149 49 15 50 hdr: shadertest/gooinglass 149 49 15 25 ldr: glass/glasswindow002e 189 233 247 425 hdr: glass/glasswindow002e 189 233 247 212 ldr: glass/glasswindow035a 145 222 172 100 hdr: glass/glasswindow035a 145 222 172 50 ldr: dev/DEV_INTERIORLIGHT02B 151 176 204 225 hdr: dev/DEV_INTERIORLIGHT02B 151 176 204 112 ldr: plaster/plasterwall029h 189 223 227 125 hdr: plaster/plasterwall029h 189 223 227 62 ldr: building_template/Building_Trainstation_Template001d 230 230 200 65 hdr: building_template/Building_Trainstation_Template001d 230 230 200 32 ldr: building_template/Building_Trainstation_Template001e 230 230 200 150 hdr: building_template/Building_Trainstation_Template001e 230 230 200 75 ldr: building_template/Building_Trainstation_window002d 230 230 200 300 hdr: building_template/Building_Trainstation_window002d 230 230 200 150 ldr: building_template/Building_Trainstation_window002e 230 230 200 300 hdr: building_template/Building_Trainstation_window002e 230 230 200 150 ldr: lights/physgunlight 189 231 232 20 hdr: lights/physgunlight 189 231 232 10 noshadow tree_deciduous_01a_branches.vmt noshadow tree_deciduous_01a_leaves.vmt noshadow tree_deciduous_01a_lod.vmt noshadow tree_deciduous_01a_lod-leaves.vmt forcetextureshadow props_wasteland/exterior_fence_notbarbed002a.mdl forcetextureshadow props_wasteland/exterior_fence_notbarbed002b.mdl forcetextureshadow props_wasteland/exterior_fence_notbarbed002c.mdl forcetextureshadow props_wasteland/exterior_fence_notbarbed002d.mdl forcetextureshadow props_wasteland/exterior_fence_notbarbed002e.mdl forcetextureshadow props_wasteland/exterior_fence_notbarbed002f.mdl forcetextureshadow props_wasteland/exterior_fence001a.mdl forcetextureshadow props_wasteland/exterior_fence001b.mdl forcetextureshadow props_wasteland/exterior_fence002a.mdl forcetextureshadow props_wasteland/exterior_fence002b.mdl forcetextureshadow props_wasteland/exterior_fence002c.mdl forcetextureshadow props_wasteland/exterior_fence002d.mdl forcetextureshadow props_wasteland/exterior_fence002e.mdl forcetextureshadow props_wasteland/exterior_fence003a.mdl forcetextureshadow props_wasteland/exterior_fence003b.mdl forcetextureshadow props_foliage/tree_cliff_01a.mdl forcetextureshadow props_foliage/tree_cliff_02a.mdl forcetextureshadow props_foliage/tree_deciduous_01a-lod.mdl forcetextureshadow props_foliage/tree_deciduous_01a.mdl forcetextureshadow props_foliage/tree_deciduous_02a.mdl forcetextureshadow props_foliage/tree_deciduous_03a.mdl forcetextureshadow props_foliage/tree_deciduous_03b.mdl forcetextureshadow props_foliage/tree_poplar_01.mdl forcetextureshadow props_wasteland/interior_fence001a.mdl forcetextureshadow props_wasteland/interior_fence001b.mdl forcetextureshadow props_wasteland/interior_fence001c.mdl forcetextureshadow props_wasteland/interior_fence001d.mdl forcetextureshadow props_wasteland/interior_fence001e.mdl forcetextureshadow props_wasteland/interior_fence001g.mdl forcetextureshadow props_wasteland/interior_fence002a.mdl forcetextureshadow props_wasteland/interior_fence002b.mdl forcetextureshadow props_wasteland/interior_fence002c.mdl forcetextureshadow props_wasteland/interior_fence002d.mdl forcetextureshadow props_wasteland/interior_fence002e.mdl forcetextureshadow props_wasteland/interior_fence002f.mdl forcetextureshadow props_wasteland/interior_fence003a.mdl forcetextureshadow props_wasteland/interior_fence003b.mdl forcetextureshadow props_wasteland/interior_fence003d.mdl forcetextureshadow props_wasteland/interior_fence003e.mdl forcetextureshadow props_wasteland/interior_fence003f.mdl forcetextureshadow props_wasteland/interior_fence004a.mdl forcetextureshadow props_wasteland/interior_fence004b.mdl