ptg 496 Chapter 20 the ground plane is a grid that reflects the position of the ground relative to the 3D model. Instead of starting from scratch, you can create a 3D model from a pre- set shape. The preset shapes include cone, cube, cube wrap, cylinder, donut, hat pyramid, ring, soda can, sphere, spherical panorama, and wine bottle. Some of the shapes use a single-mesh, such as the hat or sphere, while others use multiple-meshes, such as the soda can or wine bottle. You can also add your own custom shapes by creating a Collada DAE file, and placing it in the Presets/Meshes folder inside the Photoshop program folder. A 2D layer is converted to a 3D layer in the Layers panel. The original 2D layer appears as a Diffused texture map, and may be used on one or more surfaces in the 3D model. Creating 3D Models Using Preset Shapes Create and Modify a 3D Model from a Shape Open a document, and then select the 2D layer you want to use. Click the 3D menu, point to New 3D Shape from Layer, and then select a shape option. Select the 3D panel. Use the four area buttons (Scene, Mesh, Materials, and Lights) to display and change properties of your new 3D object. Select one of the navigation tools on the 3D panel, toolbox, or Options bar, such as 3D Rotate to move the image in a 3D space. Or, use the Axis Widget. The three colored areas represent the three axes (x, y, z) of the object. ◆ You can also highlight parts of the widget to isolate the movements or scaling of the object to specific axes. Use commands on the 3D menu or options on the 3D panel to modify the 3D model. 7 6 5 4 3 2 1 5 6 1 3 5 4 7 To ol bo x 3D panel From the Library of Wow! eBook ptg Render settings determine how 3D models are drawn in Photoshop. You can use one of the presets with common settings, or customize your own settings and create your own presets. The default presets include bounding box, line illustration, paint mask, shaded illustration, and shaded or solid wireframe. You can change the preset render settings in the 3D panel, however the more specific options are available in the Render Settings dialog box. Chapter 20 Extending Photoshop 497 Changing Render Settings Change Render Settings Open a document, and then select the 3D layer you want to change. Select the 3D panel. Select the Scenes panel. To us e a ren der s ett ing s pre set , click the Preset list arrow, and then select a preset. Click Edit. Select the check box next to any of the following, and then specify the settings you want: ◆ Face Style. Specify options to determine how the model surfaces appear, including solid or texture. ◆ Edge Style. Specify options to determine how the wireframe lines appear. ◆ Vertex Style. Specify options to adjust the appearance of vertices in a wireframe. ◆ Volume Style. Specify options to adjust the appearance of 3D volume models. ◆ Stereo Type. Specify options to view images with red-blue glasses or printed to objects with lenticular lens. To sa ve a cu sto m pre set , cli ck th e Save button, enter a name, and then click Save. Click OK. 8 7 6 5 4 3 2 1 2 5 4 3 6 8 7 From the Library of Wow! eBook ptg 498 Chapter 20 After you have inserted a 3D file or created a new 3D layer from a 2D file, you can use Photoshop 3D tools to move or scale the 3D model, change the camera view, change the lighting (to daylight or interior light, for example), or change render modes (to solid or wireframe). If you have a texture layer, you can edit it using standard Photoshop tools and reapply the texture to the 3D model. 3D models contain several components, which can include meshes, materials, and lights. A mesh provides the underlying frame structure for the 3D model. Materials are applied to a mesh to create the appearance and lights apply intensity and shadows to the materials on the 3D model. Photoshop provides pan- els for each so you can make adjustments. Modifying 3D Models Modify a 3D Model Open a document with the 3D model you want to edit. Select the 3D panel. Click any of the following buttons in the 3D panel to change a 3D model: ◆ Scene. Choose from 17 render preset settings. Select properties to a display quality, a texture map for painting on a 3D model, or create and view cross sections of the 3D model by intersecting it with an invisible plane. ◆ Mesh. Shows the object mesh pieces, which you can edit. ◆ Catch Shadows. Select to display shadows on its surface. ◆ Catch Shadows. Select to cast shadows on other surfaces. ◆ Invisible. Select to hide the mesh, yet still display any shadows. ◆ Materials. Choose from 18 material presets (New!). Select properties to change material color (diffuse), opacity (transparency) reflections, glossiness, shininess, and bump strength. 3 2 1 1 2 Scene 3 Mesh Materials Lights From the Library of Wow! eBook ptg Chapter 20 Extending Photoshop 499 ◆ Lights. Choose from 15 lighting preset settings (New!). Select properties to change the lighting type (Infinite, Spot, or Point), intensity, and color. You can also set an option to create shadows and specify a shadow softness percentage. ◆ You can also click the Create New Light button on the 3D panel to create and add different types of light sources, or click the Delete Light button to remove the selected light. To mo ve an d vie w the o bje ct in different ways, you can use the 3D tools from the toolbox, which are replicated on the Options bar: ◆ Move, rotate, or scale. Click a 3D tool on the 3D panel, on the toolbox or on the Options bar, and then drag to change the rotation, roll, pan, slide, or scale. ◆ Camera. Click a camera editing tool on the 3D panel, or on the toolbox, and then drag to change the orbit, roll, pan, walk, or zoom. ◆ Create and View 3D animations. Click the Window menu, point to Animation, and then click Timeline to animate your 3D objects and play the animations. Use commands on the 3D menu or options on the 3D panel to modify the 3D model. 5 4 5 4 Create New Light and Delete Light buttons From the Library of Wow! eBook ptg 500 Chapter 20 Not sure where to start when it comes to 3D content? Adobe can help with the Adobe Photoshop Marketplace Web site. It contains a library of updated 3D (New!) and other Photoshop related content from Adobe and other experts. The content includes textures, backgrounds, tutorials, plug-ins, and related software. With the Browse 3D Content command on the 3D menu, you can quickly access and browse 3D con- tent provided by Adobe. Browsing 3D Content Browse 3D Content Click the 3D menu, and then click Browse 3D Content. Your browser opens, displaying the Adobe Photoshop Marketplace Web site, where you can browse 3D as well as other content. Use the Filter by options to display the content you want. Browse and download the content you want. ◆ To di spl ay ne xt or p rev iou s pages, click the navigation buttons on the bottom of the page. When you’re done, exit your browser. 4 3 2 1 2 3D category 4 3 From the Library of Wow! eBook . wine bottle. You can also add your own custom shapes by creating a Collada DAE file, and placing it in the Presets/Meshes folder inside the Photoshop program folder. A 2D layer is converted to. available in the Render Settings dialog box. Chapter 20 Extending Photoshop 497 Changing Render Settings Change Render Settings Open a document, and then select the 3D layer you want to change. Select. shadows to the materials on the 3D model. Photoshop provides pan- els for each so you can make adjustments. Modifying 3D Models Modify a 3D Model Open a document with the 3D model you want to