Adding a Quick Mask to objects Using the Quick Mask feature allows you to easily create a visibility mask that can be applied to any selected object, or group of objects. To add a Quick Mask 1 Select an object(s) and then click on the rectangle, oval, or round-rectangle drawing tool in the Toolbox 2 Hold down the “ Q” key and drag the mouse over the selected object(s). Make certain that this new object is created somewhere on top of the selected object. 3 Release the mouse and the selected object(s) will automatically be masked. Rendering objects and images Rendering converts objects into paint objects. For example, you can use the Render command to create a paint object from text, and then use the Airbrush tool to paint highlights on the image of the text. Rendering is also referred to as “rasterizing” because the process pro- duces a raster image -- an image composed of pixels arranged in a grid. All paint objects in Canvas contain raster, or pixel-based, images. You can create paint objects by rendering selected vector objects, text objects, and group objects. You can render a paint object to cre- ate a new paint object that has different characteristics than the origi- nal. When you use the Render command, you can create a transparency mask or visibility mask for the resulting paint object. When you render a vector object, it’s a good idea to select a visibility mask if you want to isolate an object against a clear background. To render objects 1 Select one or more objects and choose Image > Area > Render. If you select multiple objects, they will be rendered as one paint object. 2 The Render Image dialog box lets you specify resolution and other settings for the resulting paint object. Click OK to render the selection. Group of objects that have a visibility mask applied to them using the Quick mask feature.
Canvas 8 Help: Painting and image-editing (7 of 46)                                                 Page #593