Game Development Reference
In-Depth Information
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Duration
: This is the amount of time in milliseconds during which particles
will be emitted.
•
Emission
: This is the number of emitted particles per second.
•
Life
: This is the amount of time in milliseconds until a particle is destroyed.
•
Life Offset
: This is the amount of time in milliseconds that is used up of
the particle's lifetime. This can be used, for example, to let a particle start at
the middle of its life. All interim changes that would have normally been
applied will be precalculated and set as the particle's starting state, such as
the current displacement, the angle of rotation, and any change of color. This
setting must be activated in order to take effect.
•
X Offset
: This is the horizontal displacement in world units of the particle
from its emitter's position. This setting must be activated in order to take
effect.
•
Y Offset
: This is the vertical displacement in world units of the particle from
its emitter's position. This setting must be activated in order to take effect.
•
Spawn
: This defines the shape used to spawn particles. The available shapes
are point, line, square, and ellipse. By default, it is point.
•
Size
: This is the particle's size in world units.
•
Velocity
: This is the particle's speed in world units per second. This setting
must be activated in order to take effect.
•
Angle
: This is the particle's emission angle in degrees. This setting must be
activated in order to take effect.
•
Rotation
: This is the particle's local rotation angle in degrees. This setting
must be activated in order to take effect.
•
Wind
: This is the horizontal force applied to the particle in world units per
second. This setting must be activated in order to take effect.
•
Gravity
: This is the vertical force applied to the particle in world units per
second. This setting must be activated in order to take effect.
•
Tint
: This multiplies the colors of the particle's image with the set color.
Therefore, using a monochrome-colored image is advisable for best
tint results.
•
Transparency
: This is the particle's alpha or transparency value. This allows
the particle to be anything between fully opaque and fully translucent.
Moreover, multiple changes during a particle's life allows the fade-in and
fade-out effects.
