Opacity Modifier

The Opacity Modifier change the opacity (alpha) value of the stroke points.

The alpha value in Grease Pencil is stored per-point, The modifier can alter these values to go from totally transparent points to totally opaque points.

Options

../../../_images/grease-pencil_modifiers_color_opacity_panel.png

Opacity Modifier.

Mode

The color transformation will be applied on the stroke/fill color or stroke Hardness. When Hardness is selected the opacity affect the stroke transparency (alpha) from the center to the border.

Stroke and Fill, Stroke, Fill, Hardness

Uniform Opacity

When enabled, makes the opacity equal for the entire strokes.

Strength

Absolute opacity for the stroke points.

Opacity Factor

Controls the opacity value of the stroke points. A value of 1.0 respect the original alpha value of the points, a shift less than 1.0 make the points more transparent than originally, and a shift greater than 1.0 make the points more opaque than originally.

Sets value to 2.0 makes the points alpha fully opaque.

Influence Filters

See Influence Filters.

Example

Opacity Factor samples.
../../../_images/grease-pencil_modifiers_color_opacity_factor-03.png

Opacity Factor: 0.3.

../../../_images/grease-pencil_modifiers_color_opacity_factor-1.png

Opacity Factor: 1.0 (original alpha).

../../../_images/grease-pencil_modifiers_color_opacity_factor-2.png

Opacity Factor: 2.0 (fully opaque).