Corel Painter Help | Gravity Particle brushes

Quick links to procedures on this page:

•

To choose a Gravity Particle brush variant

•

To customize a Gravity Particle brush variant

Gravity Particle brushes

Gravity Particle brushes create sweeping marks that dramatically shrink and grow with movement. The movement of the particles in a Gravity brush resembles planetary movement, as the particle paths are greatly influenced by velocity, acceleration, and other forces. Depending on the speed of the stroke, the particles can stay tight within the brushstroke, or they can be pulled apart by forces.

Gravity Particle brushstrokes

Gravity brushes include the following variants:

•

Gravity Bristle

•

Gravity Jagged Light Pen

•

Gravity Lazy Sketch

Gravity Particle brush controls

You can customize Gravity Particle brushes by using the Gravity Particles control panel, which includes the Velocity, Acceleration, and Spin Rate controls.

The Velocity slider sets the base speed of all particles. Use it together with the Acceleration slider to control the forward movement of the particles.

The Acceleration slider sets the distance between particle paths.

Left: Low velocity and acceleration. Right: High velocity and acceleration

A brushstroke with low velocity and acceleration (left) and high velocity and acceleration (right)

The Spin Rate slider sets the speed at which the particles spin around the cursor. Slower spin rates allow the particles to track the cursor closely, while higher spin rates allow the particles to travel further away from the cursor.

You can also associate the spin rate with an expression by choosing an option from the Expression list box. For more information about Expression controls, see Expression settings.