List of skies

This is a list of skies available in the Steam caches, along with pictures of each skybox. The light_environment settings listed (Ideal Sun Angle, Ideal Brightness, etc) are suggestions based on settings used in official maps; other values may also be appropriate. To test skies in singleplayer without recompiling the map, bring up the console and enter sv_skyname <sky_name>. Quicksave the game, load it again and the old skybox should be temporarily replaced with the new one.

source materials.gcf

These skyboxes are available to Half-Life 2 and all games and mods using the Source Engine.

The table below explains the prefixes used in map filenames.

Prefix	Location
d1_trainstation	City 17 before the teleporter accident
d1_canals	Route Kanal & Water Hazard
d1_eli	Black Mesa East
d1_town	Ravenholm
d2_coast	Highway 17
d2_prison	Nova Prospekt
d3_c17	City 17 after the Nova Prospekt explosion
d3_citadel, d3_breen	The Citadel

Only outdoor maps that have both skyboxes and light_environments are referenced by this list.

Example Map	Ideal Sun Angle	Ideal Sun Pitch	Ideal Brightness	Ideal Ambience
sky_borealis01
None	0 47 0	-45	254 227 167 80	195 195 195 20
sky_day01_01
d1_trainstation01 - d1_trainstation_06	0 165 0	-35	237 218 143 800	190 201 220 100
sky_day01_04
d1_canals_01, d1_canals_01a, d1_canals_02	0 165 0	-55	248 234 205 1000	194 236 252 175
sky_day01_05
d1_canals_03 d1_canals_05 d1_canals_06, d1_canals_07 d1_canals_08 de_prodigy	0 165 0 0 104 0 0 104 0 0 104 0 0 316 0	-83 -35 -35 -35 -70	243 224 158 1200 248 233 186 800 248 233 186 860 243 219 143 860 249 227 155 800	194 236 252 225 140 167 174 150 140 167 174 150 140 167 174 150 126 171 207 1000
sky_day01_06
d1_canals_09, d1_canals_10, d1_canals_11 cs_compound	0 148 0 0 104 0	-35 -35	240 187 117 1000 248 233 186 860	135 172 180 150 140 167 174 150
sky_day01_07
d1_canals_12	0 108 0	-35	235 166 71 1000	135 172 180 150
sky_day01_08
d1_canals_13, d1_eli_01	0 108 0	-35	235 155 71 1000	105 142 165 120
sky_day01_09
d1_eli_02 d1_town_01 - d1_town_03	0 12 0 0 12 0	-45 -45	175 230 239 65 175 230 239 50	83 104 130 50 43 45 57 5
sky_day02_01
d1_town_05	0 225 0	-25	254 242 160 400	172 196 204 80
sky_day02_02
d2_coast_01 de_port	0 225 0 0 230 0	-20 -20	255 244 213 700 255 244 213 700	172 196 204 50 172 196 204 50
sky_day02_03
d2_coast_03 d2_coast_04	0 280 0 0 290 0	-45 -45	243 238 224 500 243 238 224 500	172 196 204 100 172 196 204 50
sky_day02_04
d2_coast_05	0 240 0	-45	243 238 224 400	172 196 204 50
sky_day02_05
d2_coast_08	0 135 0	-30	255 255 249 448	172 196 204 100
sky_day02_06
d2_coast_09	0 270 0	-20	255 252 230 475	172 196 204 120
sky_day02_07
d2_coast_10 d2_coast_11	0 225 0 0 225 0	-15 -15	255 252 230 500 255 0 0 400	183 204 210 140 175 199 205 150
sky_day02_09
d2_coast_12 d2_prison_01 d2_prison_02 - d2_prison_08	0 200 0 0 200 0 0 200 0	-5 -5 -5	237 232 209 70 217 226 234 0 221 232 240 20	122 140 169 60 122 140 169 20 103 143 184 125
sky_day02_10
d2_coast_07	0 135 0	-30	255 255 249 448	172 196 204 100
sky_day03_01
d3_c17_01 d3_c17_02 d3_c17_03	0 165 0 0 126 0 0 150 0	-35 -25 -30	237 218 143 800 245 200 150 1000 236 218 145 600	190 201 220 100 148 173 205 60 160 184 211 150
sky_day03_02
d3_c17_04 d3_c17_05	0 140 0 0 120 0	-35 -35	236 218 145 650 236 218 145 650	160 184 211 150 160 184 211 150
sky_day03_03
d3_c17_06a d3_c17_06b, d3_c17_07	0 120 0 0 115 0	-40 -35	236 218 145 700 236 218 145 700	160 184 211 150 160 184 211 150
sky_day03_04
d3_c17_08 d3_c17_09 d3_c17_10a, d3_c17_10b	0 53 0 0 50 0 0 50 0	-60 -35 -20	239 207 141 350 237 218 143 650 238 207 142 600	75 96 116 300 190 201 220 100 190 201 220 100
sky_day03_05
d3_c17_11 d3_c17_12 d3_c17_12b d3_c17_13, d3_citadel_01	0 82 0 0 82 0 0 40 0 0 82 0	-12 -8 -8 -12	238 200 128 450 238 200 128 450 239 207 141 350 238 200 128 450	75 96 116 150 75 96 116 150 75 96 116 300 75 96 116 250
sky_day03_06
d3_breen_01, d3_citadel_05	0 280 0	-21	221 112 13 300	255 255 255 20
sky_wasteland02
None	0 28 0	-35	255 255 249 524	172 196 204 100

counter-strike source shared.gcf

These skyboxes are available to Counter-Strike: Source and mods utilizing its content.

Example Map	Ideal Sun Angle	Ideal Sun Pitch	Ideal Brightness	Ideal Ambience	Ideal HDR Brightness	Ideal HDR Ambience
assault
cs_assault
cx
de_chateau	0 27 0	-65	255 242 192 600	145 172 189 300
de_cobble
de_cbble	0 330 0	-40	240 252 255 700	146 149 155 300
de_cobble_hdr
de_nuke	0 26 0	-60	252 230 197 550	136 177 210 100	-1 -1 -1 1	-1 -1 -1 1
de_piranesi
de_piranesi	0 150 0	-50	255 248 192 450	152 160 168 300
hav
cs_havana	0 300 0	-12	251 215 140 800	143 176 214 300
italy
cs_italy	0 165 0	-45	255 232 208 600	183 201 206 200
jungle
de_aztec	0 287 0	-60	248 244 237 350	190 209 216 150
militia_hdr
cs_militia	0 298 0	-60	235 222 177 600	75 92 118 400	-1 -1 -1 1	-1 -1 -1 1
office
cs_office	0 17 0	-60	255 249 225 325	121 152 185 400
sky_dust (hdr)
de_dust, de_dust2	0 43 0	-60	233 225 201 700	241 228 190 500
tides
de_tides de_inferno	0 51 0 0 307 0	-60 -65	242 224 183 850 235 222 177 800	105 150 186 800 91 135 149 400
train (hdr)
de_train	0 120 0	-57	255 250 234 700	98 129 179 500
sky_c17_05 File:Sky c17 05.jpg
None

day of defeat source.gcf

These skyboxes are available to Day of Defeat: Source and mods utilizing its content. These skies are HDR capable.

Example Map	Ideal Sun Angle	Ideal Sun Pitch	Ideal Brightness	Ideal Ambience	Ideal HDR Brightness	Ideal HDR Ambience
sky_dod_01_hdr
dod_flash	0 165 0	-40	250 241 192 600	209 227 237 200	250 241 192 500	209 227 237 200
sky_dod_02_hdr
dod_donner	0 165 0	-40	242 240 219 450	149 171 181 250	234 230 196 370	149 171 181 300
sky_dod_03_hdr
dod_anzio	0 32 0	-50	250 241 192 600	209 227 237 200	-1 -1 -1 1	-1 -1 -1 1
sky_dod_04_hdr
dod_avalanche	0 60 0	-50	250 241 192 600	149 171 181 250	250 241 192 425	149 171 181 200
sky_dod_06_hdr
dod_argentan	0 113 0	-22	255 255 164 600	203 216 235 200	255 255 164 500	203 216 235 200
sky_dod_08_hdr
dod_kalt	No sun	No sun	197 205 214 750	136 175 204 280	197 205 214 750	-1 -1 -1 1
sky_dod_09_hdr no image yet
dod_colmar	No sun	No sun	128 165 202 165	51 86 125 650	128 165 202 50	51 86 125 325
sky_dod_10_hdr no image yet
dod_jagd	No sun	No sun	185 200 206 450	111 140 153 600	185 200 206 150	111 140 153 200

lostcoast content.gcf

These skyboxes are available to Half-Life 2: Lost Coast and mods utilizing its content. These skies are HDR capable.

Example Map	Ideal Sun Angle	Ideal Sun Pitch	Ideal Brightness	Ideal Ambience	Ideal HDR Brightness	Ideal HDR Ambience
sky_lostcoast_hdr
d2_lostcoast	25 345 0	-32	253 236 198 400	136 155 191 255	-1 -1 -1 1	-1 -1 -1 1

half-life source.gcf

These skyboxes are available to Half-Life: Source, Half-Life Deathmatch: Source and mods utilizing its content.
Please note that the only skyboxes listed here are ones that are actually used or have known values. All the others are removed from the list due to file size constraints.

Map Name	Chapter
c0a0	Black Mesa Inbound
c1a0	Anomalous Materials
c1a1	Unforeseen Consequences
c1a2	Office Complex
c1a3	We've Got Hostiles
c1a4	Blast Pit (or Screams and Whispers)
c2a1	Power Up
c2a2	On A Rail
c2a3	Apprehension
c2a4	Residue Processing
c2a5	Surface Tension
c3a1	"Forget about Freeman!" (or On Your Own)
c3a2	Lambda Core
c4a1	Xen
c4a2	Gonarch's Lair
c4a1a	Interloper
c4a3	Nihilanth
c5a1	End Game

Example Map	Ideal Sun Angle	Ideal Sun Pitch	Ideal Brightness	Ideal Ambience
alien1
c4a1b			112 188 173 1000	84 140 156 250
black
c4a1f c4a3			62 202 150 800 248 139 139 55	84 140 156 150 255 255 255 360
desert
t0a0d			255 224 160 5000	255 255 255 400
neb6
c4a2 c4a2a c4a2b			156 130 107 1200 179 81 83 1200 175 84 86 1200	255 255 255 50 255 255 255 200 255 255 255 200
neb7
c4a1 c4a1a			70 150 120 500 112 188 173 1000	255 255 255 200 84 140 156 250
night
c2a2g ,c2a2h			70 119 200 200	255 255 255 20
sky_dawn01
None			210 177 100 900	187 238 236 30
sky_wasteland02
c0a0a c0a0b c1a2a c2a3e c2a4 c2a4a c2a4e c2a4f c2a4g c2a5 c2a5a c2a5b c2a5c c2a5d c2a5e c2a5f c2a5g c2a5w c2a5x c3a1a			250 109 31 5000 250 210 110 150 255 255 255 200 220 211 182 1200 249 240 193 1200 239 233 211 650 255 237 204 900 227 210 202 1500 239 233 211 650 239 233 211 650 239 233 211 650 239 233 211 650 239 233 211 650 238 231 213 650 239 233 211 650 239 233 211 650 235 231 216 650 236 231 215 650 236 230 215 650 207 191 177 650	255 255 255 20 255 255 255 20 234 239 233 60 255 255 255 20 255 255 255 20 255 255 244 12 255 255 255 20 255 255 255 20 255 255 244 12 255 255 255 175 223 255 244 12 255 255 255 175 255 255 255 175 255 255 255 175 255 255 255 175 223 255 244 22 255 255 255 200 255 255 255 200 255 255 255 300 255 255 255 200
xen9
c1a0e			202 236 64 600	255 255 255 0