Corel Developers really listened to the suggestions from their user base and developed a set of brushes that is truly special! Glazing Brushes. They let you control the evolution of your painting using velvety, translucent paint transitions just like the Renaissance masters. Glazing Brushes deliver stroke-level opacity, so the paint of each brushstroke is applied independently. The paint that each dab deposits on the canvas builds up smoothly from a minimum to a maximum. This creates a smooth blend between colors, with no unwanted colors where dabs overlap. You’ll really see Glazing Brushes at their best when you fluctuate stylus pressure in a single brushstroke.
Glazing brushes add a new reality to your work, reflective glow of the paint that was never possible before is now possible with this new brush category. Never before have I been able to capture the transparency and clarity in my painting as I can with Glazing brushes. Glazing is different from Brush opacity (Window Brush Control Panels Opacity), which controls the opacity of each dab (or bristle for other brush types.) If you set Glazing to 20%, the opacity in a single brushstroke will never exceed 20%. Within that 20% range, you can specify the opacity of each dab from 1% to 100%. For example, if you set dab opacity to 100%, the paint that a brushstroke will deposit will still be only 20% of the selected color. Brush opacity allows you to gradually build up to the selected color and Glazing determines what that color is. The lower the Brush opacity, the slower you build up to the color specified by Glazing in a single brushstroke.
(Left) 100% Brush opacity, 100% Glazing; (middle) 100% Brush opacity, 20% Glazing. Color does not build up when you brush over the same area in a single brushstroke; (right) 20% Brush opacity, 100% Glazing. Color builds up when you brush over the same area in a single brushstroke.
Glazing is an opacity modifier in terms of a per stroke basis. It enables the artist to explore subtle transitions in opacity with a smoother stroke that builds based on pressure and glazing opacity that you control from the Glazing Panel as well as the Opacity Panel.