You can add a random
noise to the appearance of your material. Noise perturbs the UV
mapping of pixels by applying a fractal noise function.
Noise patterns can be
very complex and are a versatile way to create apparently random
patterns. They are also good for simulating surfaces found in nature,
as is characteristic of fractal images.
Noise parameters interact
closely with each other. Slight variations in each can create noticeably
NoteNoise settings aren't
displayed in viewports.
Above: A checker map
and a bitmap
Below: The same maps
with noise applied
To add noise to a material:
- In the Noise rollout, select On.
- Adjust the three noise parameters to
get an effect you like.
To remove noise from a material:
To animate the noise effect:
- Turn on (Auto Key).
- Move to a non-zero frame.
- In the Noise rollout, turn on Animate.
By default, 3ds Max sets
animation keys at either end of the active frame range.
- Change the Phase value at different keyframes.
These controls appear
on the Noise rollout for many 2D maps:
Determines whether the Noise
parameters affect the map.
Sets the strength of
the fractal function, expressed as a percentage. If the amount is
0 there is no noise. If the amount is 100 the map becomes pure noise. Default=1.0.
Or iterations: the number of
times the function is applied. The effect of the level is dependent
on the Amount value. The stronger the amount, the greater the effect
of increasing the Levels value. Range=1 to 10; Default=1.
Sets the scale of the
noise function relative to geometry. At very small values, the noise
effect becomes white noise. At large values, the scale can exceed
the scale of the geometry, in which case it has little or no effect. Range=0.001
to 100; Default=1.0.
Determines whether animation
is on the noise effect. This parameter must be turned on if you
intend to animate the noise.
Controls the speed of
the animation of the noise function.