Vector masks in paint edit mode If a paint object has a vector mask, Canvas temporarily represents the vector mask as a channel mask if you edit the paint object. In paint edit mode, a temporary channel mask that represents the object’s vector mask appears in the Channel Mask slot in the Chan- nels palette. The temporary mask lets you see the effect of the vector mask as you edit the paint object. If you click in the Channel Mask slot to try to select the temporary channel mask for editing, Canvas asks if you want to convert the vec- tor mask to a channel mask. Click Cancel to return to editing the paint object without destroying the vector mask. Click Yes if you want Canvas to convert the vector mask to a channel mask that can be edited with painting tools. Using transfer modes All objects — vector objects, text objects, paint objects, and group objects — have a transfer mode. Transfer modes are like invisible fil- ters that affect the appearance of colors. When objects overlap, the transfer mode of the front object can change the appearance of the back object. Transfer modes work with transparency effects, including opacity and transparency masks. However, transfer modes can make objects appear to be transparent without reduced opacity or transparency masks. For example, Multiply mode lets underlying colors show through an object. To apply transfer modes, you select objects and choose modes from the Transfer Mode menu in the Transparency palette. For vector objects, you can apply transfer modes to fill inks alone or to fill inks and strokes together. The default transfer mode is Normal. In Normal mode, the colors of overlapping objects do not mix unless the front object is partially transparent. In addition to interacting with background objects, transfer modes can interact with the document’s white background. When an object’s transfer mode is Screen, for example, anything white replaces the object’s color, so the document’s white background can make the object seem to be invisible.
Canvas 8 Help: SpriteLayer effects (20 of 24)                                                       Page #374