Half-Life Tutorials
Update: January 23, 2000
Name:
Steam
Description:
This tutorial shows in easy steps how to create realistic looking steam
Update:
January 23, 2000
Download the tutorial here as *.zip file
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Steam - by Tiger

How to make the steam

First make one env_sprite entity and give it the following keys at the entity inspector:



The key model sprites/xsmoke1.spr (important: you have to make a slash and not a backslash!!) is the texture of the steam, the key rendermode 5 is additive and the key spawnflags 1 says that the steam is turned on at the beginning.
Then copy the first env_spirit entity in order to make a line of 6 or more out of it, and place it where the steam should be. In the example I have copied it 6 times.



Now you have to give every entity some special keys:
NR. KEYS & VALUES Picture Entity Inspector
#1 framerate = 10
renderamt = 80
scale = 0.4
#2 framerate = 14
renderamt = 70
scale = 0.45
#3 framerate = 18
renderamt = 60
scale = 0.6
#4 framerate = 22
renderamt = 50
scale = 0.75
#5 framerate = 26
renderamt = 40
scale = 0.9
6 framerate = 30
renderamt = 30
scale = 1.1
#7 framerate = 34
renderamt = 20
scale = 1.3

As you can see is every env_sprite entity a sphere, so the first ones in the line have to overlap a bit. The key renderamt shows the transparency of the sphere and the key scale it's radius.

How to make the sound

Now after you have finished your steam it's time to add some sound and make the steams cause damage. To do this make an ambient_generic entity and give it this keys:



The key health (1-10) show the loudness of the sound, the key message show the path of the *.wav file and the key spawnflags (2-4) shows the sound radius.


How to make it to cause damage

And now add one or more trigger_hurt entities and gave them the following keys:



The key damagetype = 8 shows that the damagetype is burn and the key dmg shows the damage value.


Additional Tutorial Information:
Entities of the tutorial: env_sprite
ambient_generic
trigger_hurt
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Questions to: Tiger: tiger@qeradiant.com