
346 Game Development and Simulation with Unreal Technology
(a) (b) (c)
FIGURE 6.35: (a) The Blizzard Emitter spewing droplets from one point. (b) The Blizzard
Emitter spawning snow droplets over a two-dimensional plane. (c) Blizzard Emitter Actor
shown in the level.
26. The first thing to do, to simulate the e ffect of the atmospheric drag force on
the snow particles, is to change the Screen Alignment of the particles in the
Required emitter module.
27. Click on the Required module, and in its details panel, change its Sc reen
Alignment to PSA_Velocity.
28. Right-click under the last emitter module (it should be the Initial Location
module), and choose ...