9

Glow Inferno 369
Inter face
The Inferno panel is divided into two sections:
Settings and Parameters.
Settings group
Gaseous—Alooseandsoftpattern,oftenusedfor
clouds and smoke.
Fie ry—Fractal patterns w ith bright, well-defined
areas, of ten used for fires.
Electr ic—Long, well-defined tendril pattern that
can be used to produce arcing electr icity, when
animated. By adjusting the quality of the pattern
to 0, you can create the effect of water reflection.
Reseed—The number that the f ractal routines use
as a starting point. Set this spinner to any number
to create different f r ac t a l effects. The Reseed
button randomly selects a new number.
Motion—When you animate the inferno, motion
specifie s how fast the inferno patterns move in
the direction set by the Direction spinner. For
example, if you w ant to simulate a raging fire, you
want the fractal patterns to move upward. This
parameter can be animated (page 3–349) .
Direction—Specifies the direction, in degrees, of
the inferno effect motion. By default, 0 is aligned
in the 12 o’clock position, and works clockwise.
This parameter can be animated.
Note: TheMotionandDirectionspinnerscontrol
the motion of the fractal pattern in the X and Y
directions. You can control the Z direction using
the Speed option under Inferno Parameters.
Quality—Specifies t he overall quality of the fractal
noise patterns in the inferno effect. Higher values
result in more iterations of the fractals, more detail
in the effect, and slightly longer render times. T his
parameter can be animated.
Red/Green/Blue—Selects t he color channel to use
for the Inferno effect.
Parameters group
Size—Specifies the overall size of the fractal
patterns. Smaller numbers produce small, grainy
fract als. Higher numbers produce larger patterns.
This option can be animated.
Speed—Sets the overal l speed of the turbulence in
the fractal patterns as they are animated. Hig her
numbers produce faster turbulence in the pattern.
This parameter can be animated.
Base—Specifies the brightness of the colors in the
inferno effect. Higher values result in brighter
color ranges and brighter infernos. Lower values
result in dark, softer effects. The Base spinner
only affects Fiery and Electric inferno types This
parameter can be animated.
Amplitude—With the B ase spinner, controls the
maximum brightness for each portion of the
fracta l inferno patterns. Higher values result in
fractal patterns with brigh ter colors. Lower values
resultinthesamepatterns,withmutedcolors.
This parameter can be animated.
Bias—Shif ts the colors of the effect toward one
end of the color range or the other. At a setting
of 50, Bias has no effect. Above 50, the colors are
brighter, and below 50, they are darker and sof ter.
This parameter can be animated.
Edge—Controls the contrast between the l ight and
dark areas of the frac t al patterns. High va lues
produceahighcontrastandmorewell-defined