Adobe Photoshop CS4 - Manual (Page 239)

232 USING PHOTOSHOP CS4
Retouching and transforming
Last updated 1/10/2010
Work with meshes
Using a mesh helps you see and keep track of distortions. You can choose the size and color of a mesh, and save the
mesh from one image and apply it to other images.
• To add a mesh, select Show Mesh in the View Options area of the dialog box, and choose a mesh size and mesh
color.
• To show a mesh, select Show Mesh. When Show Mesh is selected, you can show or hide the preview image. Select
Show Image in the View Options area of the dialog box to show the preview image; deselect Show Image to view
only the mesh.
• To save a distortion mesh, after distorting the preview image, click Save Mesh. Specify a name and location for the
mesh file, and click Save.
• To apply a distortion mesh, click Load Mesh, select the mesh file you want to apply, and click Open. If the image
and distortion mesh aren’t the same size, the mesh is scaled to fit the image.
Work with backdrops
You can choose to show only the active layer in the preview image, or you can show additional layers in the preview
image as a backdrop. Using the Mode options, you can position the backdrop in front of or behind the active layer to
keep track of your changes, or to line up a distortion with another distortion made in a different layer.
Important: Only the active layer is distorted, even if other layers are displayed.
Showing the backdrop Select Show Backdrop, and then choose an option from the Use pop-up menu. If you use All
Layers, changes to the current target layer are not reflected in the backdrop layer. Specify an overlay opacity to change
the blending between the target layer and the backdrop. The mode determines how the backdrop and the target layer
are combined for the preview. Choose an option from the Mode pop-up menu.
Hiding the backdrop Deselect Show Backdrop in the View Options area of the dialog box.
Vanishing Point
About Vanishing Point
Vanishing Point simplifies perspective-correct editing in images that contain perspective planes—for example, the
sides of a building, walls, floors, or any rectangular object. In Vanishing Point, you specify the planes in an image, and
then apply edits such as painting, cloning, copying or pasting, and transforming. All your edits honor the perspective
of the plane you’re working in. When you retouch, add, or remove content in an image, the results are more realistic
because the edits are properly oriented and scaled to the perspective planes. After you finish working in Vanishing
Point, you can continue editing the image in Photoshop. To preserve the perspective plane information in an image,
save your document in PSD, TIFF, or JPEG format.
Making edits on the perspective planes in an image