User Manual

Color Controls
The Color Controls select the color and Alpha values of the particles generated by the emitter.
Color Variance
These range controls provide a means of expanding the colors produced by the pEmitter.
Setting the Red variance range at -0.2 to +0.2 will produce colors that vary 20% on either side
of the red channel, for a total variance of 40%. If the pEmitter is set to produce R0.5, G0.5, B0.5
(pure gray), the variance shown above will produce points with a color range between R0.3,
G0.5, B0.5, and R0.7, G0.5, B0.5.
To visualize color space as values between 0-256 or as 0-65535, change the values used by
Fusion using the Show Color As option provided in the General tab within the
Preferences dialog.
Lock Color Variance
This checkbox locks the color variance of the particles. Unlocking this allows the color variance
to be applied differently to each color channel, giving rise to a broader range of colors.
Particles Color Over Life controls
Color Over Life
This standard gradient control allows for the selection of a range of color values to which the
particle will adhere over its lifetime.
The left point of the gradient represents the particle color at birth. The right point shows the
color of the particle at the end of its lifespan.
Additional points can be added to the gradient control to cause the particle color to shift
throughout its life.
This type of control can be useful for fire-type effects (for example, the flame may start blue,
turn orange and end a darker red). The gradient itself can be animated over time by right-
clicking on the control and selecting Animate from the contextual menu. All points on the
gradient will be controlled by a single Color Over Life spline, which controls the speed at which
the gradient itself changes. You may also use the From Image modifier, which produces a
gradient from the range of colors in an image along a line between two points.
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