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Photoshop cs5 by steve Johnson part 39

Tạo mặt nạ Khi bạn làm việc trên các tài liệu trong Adobe Photoshop, ứng dụng sẽ làm tốt nhất của mình để làm cho kinh nghiệm tương tự như thế giới thực càng tốt. Khi bạn chọn công cụ Brush và kéo trong tài liệu này, bạn sẽ thấy một swath của màu sắc bằng cách sử dụng các kích thước chọn trước và đầu bàn chải. | Creating Masks Introduction When you work on documents in Adobe Photoshop the application does its best to make the experience as similar to the real world as possible. When you select the Brush tool and drag within the document you expect to see a swath of color using the preselected size and brush tip. That s what you expect to see when you drag a brush on a canvas and that s what you see in Photoshop. Creating a realistic experience is what Photoshop is all about. Yet as realistic as the Photoshop experience is there are elements of digital design that go way beyond the real world. For example Photoshop has an undo button the real world does not. Masks for example give you the ability to remove elements of a layer without actually erasing the image pixels or objects. Masks give you ultimate control over your Photoshop design by deciding what elements of an image are visible and making changes to the image without destroying any pixels or objects. There are two types of masks layer and vector. A layer mask is a bitmap image created with painting and selection tools while a vector mask is an object created with a pen or shape tool. In addition masks are editable which means you can change your mind at any time during the creative process. Imagine creating a complicated selection in Photoshop. Selections are temporary they last only as long as your document is open. But what if you want to save this selection for use later in the design What you need is a channel mask. Channel masks hold simple or complicated selections and can be saved with the document. Channel masks are created from preexisting selections or can be created from scratch by painting the mask with black white or shades of gray. The process of creating a Channel mask is simple but the results are powerful. 10 What You ll Do Understand Layer and Vector Masks Create a Layer Mask Use Paint Tools with Layer Masks Use Selections to Generate Complex Layer Masks Use Layer Masks to Generate Soft .