Tablet Nozzle
If you had a virtual microscope in MODO that would allow you to look at how brush strokes are created, they aren't actually continuous lines, but a series of tiny 'dabs' sprayed across the canvas. The 'Tablet Nozzle' option gives users greater control over these dabs, as well as over a tools pressure sensitivity when using a Pen and Tablet as an input device. (Make sure to set the input preference to 'Tablet' if you wish to work this way. The setting can be found in the menu bar under "System > Preferences" in the "Input > Remapping > Input Device" option field). The Tablet Nozzle also provides options to vary the positions and scales of the paint dabs when stamped down, providing some randomization to that spray of dabs from your brush. There are five parameters; Spacing, Position, Size, Rotation and Strength.
Tablet Nozzle--
Pressure Sensitivity: This options controls the brushs sensitivity to changes in tablet pressure when painting strokes on the canvas, the 'Low' option is less sensitive to variation of pressure, while 'Medium' and 'High' are increasingly more sensitive.
Strength: The 'Strength' option defines what action controls the strength (and therefore density) of the stroke. 'None' disables strength modulation, the 'Pressure' option controls the density of the stroke based on the pens pressure input value. The 'Speed' option controls the density of the stroke based on how fast or slow the cursor moves over the surface. The 'Both' option combines the pressure sensitivity of the tables input with the speed of the cursor to control the final strokes strength.
Size: The 'Size' options defines what action controls the scaling of the stroke dabs providing users the ability to vary strokes width. 'None' disables scaling of the tip, the 'Pressure' option controls the scaling of the stroke based on the pens pressure input value. The 'Speed' option controls the scaling of the stroke based on how fast or slow the cursor moves over the surface. The 'Both' option combines the pressure sensitivity of the tables input with the speed of the cursor to control the final strokes size.
Rotation: The 'Rotation' option controls the facing direction of paint dabs when placed on the canvas. 'None' disables rotation of the dabs, aligning them vertically to the viewport when brushed to the canvas. The 'Align' option aligns the dab to the vector direction the stroke is traveling, meaning each dab is rotated to flow along the direction the brush stroke is moving.
Enable Jitter: When this option is enabled, uses can adjust the values for the various options to control randomizations the brush dabs.
Jitter Spacing: MODO brush dabs spray with tiny but consistent spaces between each dab. This value will randomize that spacing. Higher values will cause the dabs to clump together leaving noticeable gaps, while smaller values will vary the positions only slightly.
Position: This value randomize the placement of the dabs away from the brushstroke. Higher values will cause the dabs to 'splatter' around the stroke, while smaller values will vary the positions only slightly creating uneven natural-looking strokes.
Size: This value will randomize the size of each dab as it is placed on the canvas. Higher values will create blobby clumped strokes while smaller values will reduce the clumping making strokes with randomly varying thickness.
Rotation: This value will randomly rotate each dab. Higher values will randomize the rotation of each dab to a higher degree, and obviously lower values vary the rotation in smaller increments. While not too useful for the perfectly round dabs of the smooth and hard brushes, when used with image maps and the preset brush, one can quickly add an overall texture to a surface with only one image, avoiding obvious visual repetition.
Strength: This value will randomize the strength of each dab, essentially varying the pressure applied to each one. This will result in different degrees of opacity for each dab. Higher values will very the pressure to a higher degree, while lower values will vary the pressure in smaller amounts.
Play around with different combination's and you can create dramatic variations of simple brushes with just a few settings easily creating special effect brushes that will complement the many already present in MODO.
