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Particle Age Map 1485
Noise Type—
• Regular—(The default.) Generates plain noise.
Basically the same as fractal noise with the
Levels setting at 1. When the noise type is set to
Regular, the Levels spinner is inactive (because
Regular is not a fractal function).
•
Fr act al—Generates noise using a fractal
algorithm. The Levels option sets the number
of iterations for the fractal noise.
•
Tu rbu lence—Generates fractal noise w ith an
absolute value function applied to it to make
fault lines.
Regular, Fractal, Turbulence
Size—Sets the scale of the noise function, in
3ds Max units. Default=25.0.
Noise Thr eshold—When the noise value is above
the Low threshold and below the High threshold,
the dynamic range is stretched to fill 0 to 1. This
creates a smal ler discontinuity (technically, 1st
order instead of 0 order) at the threshold transition
and produces less p otential
aliasing (page 3–1001) .
•
High—Sets the high threshold. Default=1.0.
•
Low—Sets the low threshold. Default=0.0.
Level s —Determines how much fractal energy
is used for the Fractal and Tur bulence noise
functions. You can set the exact amount of
turbulence you want, and also animate the number
of fractal levels. Default=3.0.
Phase—Controls the speed of the animation of the
noisefunction. Usethisoptiontoanimatethe
noise function. Default=0.0.
Swap—Switches the position of the two colors or
maps.
Co lor # 1 and Color # 2—Display the Color Selector
(page 1–157)
so you can choose one or the other of
the two principal noise colors. Intermediate color
values are generated from the two colors you select.
Maps—Select the bitmaps or procedural maps to
appearinoneortheothernoisecolor.
Turnonthecheckboxestomakethemapsactive.
Pa rti cle Age M a p
Material Editor > Maps rollout > Click a Map button. >
Material/M ap Browser > Particle Age
Particle age changes the appearance of particles over time.
TheParticleAgemapisforusewith particle
systems (page 3–1084)
. Typical ly you assign
theParticleAgemapasa
Diffuse map (page
2–1339)
,orinParticleFlowwiththe Material