| Parameters |
| Scale |
These three controls scale the shader in the X, Y and Z axis. The
bigger each of the values the smaller the shader pattern will appear.
|
| Center |
These three controls position the center of the shader in the X, Y and Z axis.
It is possible by moving the shader center over time to create swirling noise
animations.
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| Bump Height |
This parameter determines the height of the bumps when positive or the depth of the pits when negative.
|
| Bottom Clip |
This parameter sets the clipping depth of the bumps. That is, the point down the
bump slope where it is clipped and flat plateau rendered.
|
| Top Clip |
This parameter sets the clipping height of the bumps. That is, the point up the
bump slope where it is clipped and flat plateau rendered.
|
| Disturb |
The shader can be stirred up, or disturbed, using a turbulence function with these
three values controlling it. The three values control the Magnitude, Scale and Number
Of Octaves respectively. The Magnitude value controls the size of the shader disturbance.
For turbulence to be generated this must be greater then zero. The larger this value
the more disturbed the shader is. The Scale value controls the frequency of the shader
disturbance. The larger this value smaller period of the turbulence and therefore, the
finer the shader disturbance. The Number Of Octaves value controls the number of noise
summing used in the shader disturbance. The higher this value the more octaves
and the finer the detail of the disturbance will be become.
|
| Wave Type |
This control allows one of six different shader wave types to be used. By passing the
shader function through a waveform generator different shader patterns can be created.
The wave types are 1 for Saw Tooth, 2 for Sine, 3 for Cosine, 4 for Scallop, 5 for Smooth
Step, 6 for Triangle and 7 to Invert. These are shown below:
|
| Stencil Image |
The stencil image is an image that can be used to control the bump height. When the stencil
image is used the brightness in-conjunction with the Bump Height determine the scaling of the
bumps at any point.
|
| Stencil Image |
The parameter controls the use of the stencil map. When the value is 0.0 the stencil
image is not used. When the value is 1.0 the bumps will be scaled such that when
the image is brighter the bumps will be higher. Conversely, when this value is -1.0 then
image is negated so that the bumps will be highest where the image is darkest.
|
| Axes |
This parameter sets the axis around which the drop is drawn. A value of 0.0 sets the
X axis, 1.0 the Y axis and 2.0 the Z axis.
|
| Min/Max Wave Length |
These parameters determine the start and end wavelengths. The wavelength controls the distance between the peaks of the ripples.
As the texture is animated the ripple will start from the minimum wave, when time is 0.0, and finish at the maximum wave when
time is 1.0.
|
| Min/Max Radius |
These parameters determine the start and end radii. The radius controls the distance from the center to the outer ripple. As the texture
is animated the ripple will start from the minimum radius, when time is 0.0, and finish at the maximum radius when time is 1.0.
|
| Min/Max Ripples |
These parameters determine the start and end number of ripples. As the texture is animated the number of ripples will start from the minimum
ripple, when time is 0.0, and finish with the number of ripples set by maximum ripple when time is 1.0.
|
| Min/Max Bump Height |
These parameters determine the start and end amplitudes of the ripple. The bump controls the height of the peaks of the ripples.
As the texture is animated the ripple will start from the minimum bump, when time is 0.0, and finish at the maximum bump when
time is 1.0. Note As time increases the ripple amplitude is reduced to control the fading of the ripples.
|
| Time |
This parameter controls the time through the animation of the drop. In order to create one full cycle of animation an
envelope must be set up that changes this parameter from 0.0 to 1.0.
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