Clump properties

To access the clump properties, select the clump curve set (wmWigClumpCurveSet) in the Attribute Editor.

Clump Curve Set

Attribute Description
Active Curve Set Displays the ID for the active clump set. The active clump set is the clump set that your changes apply to.

Shape

Attribute Description
Multiplier Control how strongly the clumped hairs are pulled into a straight line as part of the clumping.
Profile A Define the position, value, and interpolation for clump profile A.
Position Set where along Profile A you want to define a value.
Value Define the level of effect along the clump profile.
Interpolation Set how the curve is interpolated for Profile A.
Profile B Define the position, value, and interpolation for clump profile B.
Position Set where along Profile B you want to define a value.
Value Define the level of effect along the clump profile.
Interpolation Set how the curve is interpolated for Profile B.
Profile A/B Ratio Set the distribution between clump weight Profile A and B. At 0, all clumps use Profile A (0% chance of Profile B). At 1, all clumps use Profile B.
Seed Change the random distribution assigned to Profile A and B.

Global Strength

Attribute Description
Position Set where along the profile you want to define a value.
Value Define the level of effect along the clump profile.
Interpolation Set how the curve is interpolated.

Volume

Attribute Description
Compensation Magnitude Add chunky differences in length to your strands. Increasing the slider to 1 keeps the strands at similar lengths.
Compensation Length Adjust the length of the strands. Increasing the slider to 1 lengthens the strands.
Packing Magnitude Adjust how closely bound the strands are to the curve. Increasing the slider toward 1 binds the strands more tightly to their curves.
Packing Length Adjust the length of the strands. Increasing the slider toward 1 lengthens the strands.

Trim

Attribute Description
Enable Trim Control and define how hairs within one clump deal with overgrown/overshooting hairs.
Trim Ratio

Strand Deformation

Attribute Description
Random Control the settings related to random strand deformation.
Enable Random Deformation Add random noise to the shape of strands within each clump, creating a fuzzy look.
Strands Affected (%) Set the percentage of strands that are deformed.
Num Octaves Set the number of frequency components in the noise function. Typically, three or four components allow for a wide range of variation in the look of the clumps. Using more components can slow performance.
Octave Ratio Set the ratio between magnitudes of successive frequency components. Typically set to a value below 1, as it usually preferrable to decrease the magnitude from one component to the next.
Root Period Define the frequency of the first component. Since the frequency of all the other components is a multiple of the first one, this parameter effectively sets the global frequency of the noise function.
Angular Magnitude Define how the noise function is applied when rotating the vertex around the clump curve.
Radial Magnitude Define how the noise function is applied when translating the vertex towards or away from the clump curve.
Tangential Magnitude Define how the noise function is applied when translating the vertex along the direction of the clump curve.
Max Radial Overshoot Define how much a vertex can move out of a clump when radial displacement is applied.
Strength Control the strength settings for random strand deformation.
Position Set where along the profile you want to define a value.
Value Define the level of effect along the clump profile.
Interpolation Define how the curve is interpolated.
Wave Control the wave deformation settings for the clumps.
Enable Wave Deformation Create a randomized wave pattern through the strands.
Random Seed Set the number used as the original input for randomization. Change this if you want to change the look of the random variation applied to the hairs.
Mirror Generate a random value between the set minimum and maximum wavelength values and their inverse values.
Strands Affected (%) Set the percentage of strands that are deformed.
Randomize Wave Length Randomize the wavelength of the strands by setting the minimum and maximum wave length values. The value applied to the strands falls between these values. This setting adds more separation between individual strands.
Wave Length Min Set the minimum value for the wavelength of the strands. Lower settings make the tool apply more waves to each hair (distorting the hair more).
Wave Length Max Set the maximum value for the wavelength of the strands.
Randomize Amplitude Randomize the amplitude of the strands by setting the minimum and maximum amplitude values. The value applied to the strands falls between these values. This setting adds more breakup between the strands.
Amplitude Min Set the minimum value for the amplitude of the strands. Use a low value for a subtle effect or a higher value for serious distortion.
Amplitude Max Set the maximum value for the amplitude of the strands.
Adjust Strand Length Adjust strands to the length of their clump (if lengths are changed from deformations).
Strength Control the strength settings for wave deformation.
Position Set where along the profile you want to define a value.
Value Define the level of effect along the clump profile.
Interpolation Define how the curve is interpolated.

Clump Deformation

Attribute Description
Twist Control the settings for twist deformation.
Enable Twist Deformation Twist strands around the curve they are bound to.
Twist Degree Set the degree of the twist up to 720 degrees (two full rotations). Positive values twist strands to the right and negative values twist strands to the left.
Overshoot Threshold Randomly set some strands to be longer than the value set for Twist.
Mirror Cause some strands to twist in the opposite direction. By default, this applies to an entire clump.
Mirror Per Strand Cause some strands within the same clump to go in different directions.
Randomize Set the minimum and maximum values to be randomized using the Twist Scale Min and Twist Scale Max values.
Random Seed Set the random seed for the twist. Use this to get a different look with the current randomization parameters.
Scale Min Set the minimum value for the scaling applied.
Scale Max Set the maximum value for the scaling applied.
Strength Control the strength settings for twist deformation.
Position Set where along the profile you want to define a value.
Value Define the level of effect along the clump profile.
Interpolation Define how the curve is interpolated.
Volume Control the settings for volume deformation.
Enable Volume Deformation Add a noise function that changes the overall volume of the clump along the clump curve. The noise function is similar to the one used in Random deformation and has the same parameters.
Num Octaves The number of frequency components in the noise function. Typically, 3 or 4 components allows for a wide range of variation in the look of the clumps. Using more components could slow performance.
Octave Ratio Set the ratio between the magnitudes of successive frequency components. Typically set to a value below 1 as it is usually preferable to decrease the magnitude from one component to the next.
Root Period Define the frequency of the first component. Since the frequency of all the other components is a multiple of the first one, this parameter effectively sets the global frequency of the noise function.
Stretch Magnitude Define how much of the noise is translated into a stretching of the clump along one direction. This makes the profile of the clump more elliptic rather than circular in certain regions.
Twist Magnitude Define how much of the noise is translated into a random rotation of the clump around the clump curve.
Strength Control the strength settings for volume deformation.
Position Set where along the profile you want to define a value.
Value Define the level of effect along the clump profile.
Interpolation Define how the curve is interpolated.