This is a RAD file from original mod version of Black Mesa.
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.lights/fluorescentcool001a 189 231 232 350
lights/fluorescentcool001b 236 255 182 350
lights/fluorescentcool002a 189 231 232 400
lights/fluorescentcool002b 236 255 182 400
lights/fluorescentcool003a 189 231 232 300
lights/fluorescentwarm001a 239 216 193 350
lights/fluorescentwarm002a 239 216 193 400
lights/fluorescentwhite001a 245 245 245 350
lights/fluorescentwhite002a 245 245 245 400
liquids/slime 191 255 000 1000
liquids/slime_cheap 191 255 000 1000
lights/hazzardred001a 228 37 0 300
lights/hazzardyellow001a 250 215 74 300
lights/HIDcool001a 145 222 172 650
lights/HIDcool001b 205 232 255 650
lights/HIDwarm001a 255 201 116 650
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
lights/white001_nochop 250 240 205 100
lights/white002_nochop 189 233 247 425
lights/white003_nochop 232 246 190 350
lights/white004_nochop 170 228 247 425
lights/white005_nochop 234 235 220 375
lights/white006_nochop 234 235 220 100
lights/incandescentcool001a 235 235 235 300
lights/incandescentwarm001a 250 226 129 300
glass/glassscreen001a 172 192 161 225
glass/glasspipe001f 214 72 44 200
glass/glassscreen001c 172 192 161 225
glass/glassscreen001d 211 187 134 225
glass/glassblock001a 70 194 209 200
composite/citadelfloor001a 103 143 203 200
props/tvscreen006a 196 0 0 200
shadertest/gooinglass 149 49 15 50
glass/glasswindow002e 189 233 247 425
glass/glasswindow035a 145 222 172 100
dev/DEV_INTERIORLIGHT02B 151 176 204 225
plaster/plasterwall029h 189 223 227 125
building_template/Building_Trainstation_Template001d 230 230 200 65
building_template/Building_Trainstation_Template001e 230 230 200 150
building_template/Building_Trainstation_window002d 230 230 200 300
building_template/Building_Trainstation_window002e 230 230 200 300
lights/physgunlight 189 231 232 20
liquids/greenslime 127 255 0 1250
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_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
forcetextureshadow props_desert/concfence01a_long.mdl
forcetextureshadow props_desert/concfence01a_short.mdl
forcetextureshadow props_blastpit/c1a4_grate01.mdl
forcetextureshadow props_blastpit/c1a4_grate02.mdl
forcetextureshadow props_blastpit/c1a4_grate03.mdl