To remove a channel mask Removing a channel mask from an object removes the transparency effect produced by the channel mask. 1 Select the masked object. 2 Choose Object > SpriteLayers > Detach Mask. Canvas removes the channel mask from the selected object. When you detach a channel mask, Canvas converts the channel mask to a paint object and places it in the document. The paint object includes the alpha channels from the masked object if it had alpha channels. Vector masks A vector mask creates a transparency effect based on a style of gradi- ent ink, such as radial or rectangular. You can choose the style when you apply a vector mask, or you can apply an existing vector object as a vector mask. A vector mask can be applied to any type of objects, including vec- tor, paint, text, and group objects. It’s easy to apply vector masks. You can drag a vector transparency tool to apply radial, directional, elliptical, or rectangular style masks. If you want to use precise values for position and transparency levels, you can enter numbers in the Transparency palette. You can apply a mask quickly by selecting an object and choosing Object > SpriteLayers and selecting a vector mask style in the submenu. The styles of vector masks applied by the Vector Transparency tools are related to vector gradient styles. You can think of these tools as applying a hidden gradient to a masked object. The transparency effect is based on the hidden gradient; the transparency level is rela- tive to the lightness of the gradient shading. Vector mask styles (Left to right) Radial, Directional, Rectangular, Elliptical
Canvas 8 Help: SpriteLayer effects (14 of 24)                                                       Page #368