Thief Forum

The Thief2 Weather System
By: Matt MacKenzie

Every level has a global set of weather conditions: whether it's raining or snowing, how much, and how far from the camera it's visible (our basic optimization, compared to using particle effects, is that precipitation only falls around the camera, which is usually where the player is). You can use room brushes to control what parts of the level have weather. But every place where it's raining, it's raining in the same way; and every place which has fog has it in the same color and density.

For a look at the global precipitation settings for your level, mouse your way over to Editors/Mission Parameters.../Weather. You'll notice that the first field in the weather settings lets you choose between rain and snow. No level can have both. Some of the fields after that apply to all precipitation, while others apply only to rain or only to snow.

The settings

Here are settings which look good in my little test level when using rain (fields not in boldface aren't used for rain):

# # new drops/sec: 40
# precip fall (ft./sec.): 130
# visible distance (feet): 80
# render radius (feet): .1 - (thicker than real ones, but at least it's visible)
# rendering alpha (0-1): .8
# precip brightness (0-1): .8 - (this would be lower for a night mission)
# snow jitter(feet)
# rain length (feet): 10
# splash frequency (0-1): .5 - (at 1.0, all raindrops on horizontal surfaces make splashes)
# splash radius (feet): .25
# splash height (feet): .4
# splash duration (sec.): .3
# texture: rain
# wind (ft./sec.): 0 0 0 - (this has no effect on physics, just slants the rain)

Here are settings which look good for snow (fields not in boldface aren't used for snow):

# # new drops/sec.: 20
# precip fall (ft./sec.): 10
# visible distance (feet): 60
# render radius (feet): .12 - (cartoonishly big, but at least it's visible)
# rendering alpha (0-1): 1
# precip brightness (0-1): 1 - (this would be lower for a night mission)
# snow jitter (feet): 3 - (some extra curviness to how it falls)
# rain length (feet)
# splash frequency (0-1)
# splash radius (feet)
# splash height (feet)
# splash duration (sec.)
# texture: snow
# wind (ft./sec.): 0 0 0 - (this has no effect on physics, just slants the snow)

timon pisze: teraz przejdź do Editor : object hierarchy i wybierz w show tree typ rooms.

Juliusz pisze:Silnik Thiefa 1 nie obsługuje deszczu - takie bajery to tylko w T2.

Tabal pisze: (...) dokopałem się do ciekawego tutoriala Weather Effects in Thief 1 napisanego przez Riff dawno temu...i co ciekawe deszcz oraz śnieg jest teoretycznie niemożliwy ALE są particle effects które można zmodyfikować na potrzeby opadów.Obszar,wielkość i ilość kropel,szybkość spadania oraz kolor! jeszcze tylko custom sound schema,sound marker,radius i voilà! Lecz co tu pisać sprawdze niedługo

Juliusz pisze:(...) czemu nie robisz misji pod Thiefa 2? Można zrobić dokładnie to samo, a nawet więcej.

Tabal pisze:Wszystko po cichaczu owinięte mrokiem jest